Internet Engineering Task Force                               U. Herberg
Internet-Draft                                  LIX, Ecole Polytechnique
Intended status: Standards Track                                 R. Cole
Expires: January 9, May 13, 2011                                     US Army CERDEC
                                                             I. Chakeres
                                                                  CenGen
                                                            July 8,
                                                        November 9, 2010

 Definition of Managed Objects for the Neighborhood Discovery Protocol
                      draft-ietf-manet-nhdp-mib-04
                      draft-ietf-manet-nhdp-mib-05

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   In particular, it describes objects for configuring parameters aspects of the
   Neighborhood Discovery Protocol (NHDP) process on a router.  The NHDP
   MIB
   defined in this memo, denoted NHDP-MIB, also reports state, state and performance information and notifications.
   This additional state and performance information is useful to troubleshoot problems and
   performance issues during
   management stations troubleshooting neighbor discovery. discovery problems.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Internet-Drafts are draft documents valid for a maximum of six months
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   This Internet-Draft will expire on January 9, May 13, 2011.

Copyright Notice

   Copyright (c) 2010 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  The Internet-Standard Management Framework . . . . . . . . . .  3
   3.  Conventions  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   4.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
     4.1.  Terms  . . . . . . . . . . . . . . . . . . . . . . . . . .  3
   5.  Structure of the MIB Module  . . . . . . . . . . . . . . . . .  4
     5.1.  The Configuration Group  . . . . . . . . . . . . . . . .  Notifications  .  4
     5.2.  The State Group . . . . . . . . . . . . . . . . . . . . .  5
     5.3.  4
     5.2.  The Performance Configuration Group  . . . . . . . . . . . . . . . . . .  5
     5.4.  Notifications  . . . . . . . . . . . . . . . . . . . . . . 15
       5.4.1.  Introduction . . . . . .
     5.3.  The State Group  . . . . . . . . . . . . . . . 15
       5.4.2.  Notification Generation . . . . . .  5
     5.4.  The Performance Group  . . . . . . . . . 15
       5.4.3.  Limiting Frequency of Notifications . . . . . . . . . 15
   6.  5
     5.5.  Relationship to Other MIB Modules  . . . . . . . . . . . . . . 16
     6.1. 14
       5.5.1.  Relationship to the SNMPv2-MIB . . . . . . . . . . . . . . 16
     6.2. 15
       5.5.2.  Relationship to Routing Protocol MIBs relying on the
           NHDP-MIB . . . . . . . . . . . . . OLSRv2-MIB . . . . . . . . . . . . 16
     6.3. 15
       5.5.3.  Relationship to the REPORT-MIB . . . . . . . . . . . . . . 17
     6.4. 15
       5.5.4.  MIB modules required for IMPORTS . . . . . . . . . . . . . 17
   7. 15
     5.6.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . 17
   8. 15
     5.7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 58
   9. 56
     5.8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 60
   10. 58
     5.9.  Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 60
   11. 58
   6.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 60
     11.1. 59
     6.1.  Normative References . . . . . . . . . . . . . . . . . . . 60
     11.2. 59
     6.2.  Informative References . . . . . . . . . . . . . . . . . . 61 59
   Appendix A.  Change Log  . . . . . . . . . . . . . . . . . . . . . 61 60
   Appendix B.  Open Issues    . . . . . . . . . . . . . . . . . . . . . 63
   Appendix C.    . . . . . . . . . . . . . . . . . . . . . . . . . . 65 62

1.  Introduction

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   In particular, it describes objects for configuring parameters aspects of the
   Neighborhood Discovery Protocol (NHDP) [NHDP] process on a router.
   The NHDP MIB
   defined in this memo, denoted NHDP-MIB, also reports state, state and performance information and
   notifications.  This additional state and performance information is
   useful to troubleshoot problems and
   performance issues during management stations troubleshooting neighbor discovery. discovery
   problems.

2.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to Section section 7 of
   RFC 3410 [RFC3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580].

3.  Conventions

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   OPTIONAL" "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

4.  Overview

   [NHDP]

   The NHDP protocol allows a router in a Mobile Ad Hoc Ad-Hoc Network (MANET)
   to discover and track topological information of routers up to two
   hops away by virtue of exchanging HELLO messages.  This information
   is useful for routers running various routing and multicast flooding
   protocols developed within the IETF MANET Working Group.

4.1.  Terms

   The following definitions apply throughout this document:

   o  Configuration Objects - switches, tables, objects which are
      initialized to default settings or set through the management
      interface defined by this MIB.

   o  State Objects - automatically generated values which define the
      current operating state of the NHDP protocol process in the
      router.

   o  Performance Objects - automatically generated values which help an
      administrator or automated tool to assess the performance of the
      NHDP protocol process on the router and the overall discovery
      performance within the MANET. NHDP domain.

   o  Notification Objects - define triggers and associated notification
      messages allowing for asynchronous tracking of pre-defined events
      on the managed router. device.

5.  Structure of the MIB Module

   This section presents the structure of the NHDP-MIB NHDP MIB module.  The MIB
   is arranged into the following structure:

   o  nhdpObjects  nhdpNotifications - objects defining NHDP MIB notifications.

   o  nhdpObjects - management objects within this MIB.  The objects are
      arranged into the following groups:

      *  Configuration Group - defining objects related to the
         configuration of the NHDP instance on the router. device.

      *  State Group - defining objects which reflect the current state
         of the NHDP instance running on the router. device.

      *  Performance Group - defining objects which are useful to a
         management station when characterizing the performance of NHDP
         on the router device and in the MANET.

   o  nhdpNotifications - objects defining NHDP-MIB notifications.

   o  nhdpConformance - defining the minimal and maximal conformance
      requirements for implementations of this MIB.

5.1.  Notifications

   The Notifications subtree contains the list of notifications
   supported within the NHDP-MIB and describes their intended purpose or
   utility.  The following notifications are specified:

   o  nhdpNbrStateChange is a notification sent each time the status of
      a neighbor has changed.  Possible status values are 'down',
      'asymmetric', and 'symmetric'.

   o  nhdp2hopNbrStateChange is a notification sent each time the status
      of a two hop neighbor has changed.  Possible status values are
      'down' and 'up'.

   o  nhdpIfRxBadMessage is a notification sent each time an incoming
      HELLO message has not been successfully parsed on an interface.

   o  nhdpIfStateChange is a notification sent each time the status of
      an interface of the designated router has changed (i.e. an IP
      address has been added or removed to the interface, or the
      interface has changed its status from 'up' to 'down' or vice
      versa).

5.2.  The Configuration Group

   The NHDP device is configured with a set of controls.  The Configuration Group

   The NHDP router is configured with a set of controls.  The
   authoritative list of configuration controls within the NHDP-MIB are
   found within the MIB module itself.  Generally, an attempt was made
   in developing the NHDP-MIB module to support all configuration
   objects defined in within the NHDP protocol definition [NHDP].  For all
   of the configuration parameters, the same constraints and default
   values of these parameters as defined in [NHDP] are followed.

5.2.

5.3.  The State Group

   The State Group reports current state information of a router running
   [NHDP]. information, including neighbor
   tables.  The NHDP-MIB State Group tables were designed to contain the
   complete set of state information defined within the information
   bases in within the NHDP protocol [NHDP].

   Two constructs, i.e., TEXTUAL CONVENTIONs, are defined in support of
   the tables in the State Group.  These are the NeighborIfIndex and
   NeighborRouterId.  These are locally (to the NHDP router) device) defined,
   unique identifiers.  They are used to define indexes to the
   appropriate State Group tables and to correlate table entries to
   interface address, addresses, interfaces and routers within the MANET. NHDP domain.
   The NeighborIfIndex is a unique identifier of discovered NHDP
   interfaces on all routers within the MANET. NHDP domain.  The
   NeighborRouterId is a unique identifier of discovered NHDP routers
   within the MANET.

5.3. NHDP domain.

5.4.  The Performance Group

   The Performance Group reports values relevant to system performance.
   This section lists objects for NHDP performance monitoring, some of
   which explicitly appear in the NHDP-MIB and others which are
   obtainable through a combination of base objects from this MIB and
   reports available through the REPORT-MIB [REPORT].  Throughout this
   section,
   section those objects will be pointed out that are intended as base
   objects,
   objects which will be are explicitly defined within this MIB, MIB and those
   objects which are derived through a combination of the NHDP-MIB base
   objects and capabilities afforded by the REPORT-MIB.

   The objects described in the following can be useful for determining
   certain properties of the NHDP instance.  Notably unstable

   Unstable neighbors or 2-hop neighbors and frequent changes of sets
   can have a negative influence on the performance of NHDP.  The
   following objects allow management applications to acquire
   information related to the stability and performance of NHDP:

   The following objects return statistics related to HELLO messages:

   o  Total number of sent HELLO messages on an interface

         This is a Base Object.

         Object name: nhdpIfHelloMessageXmits

         Object type: Counter32

   o  Total number of received HELLO messages on an interface

         This is a Base Object.

         Object name: nhdpIfHelloMessageRecvd

         Object type: Counter32

   o  Total number of sent periodic HELLO messages on an interface

         This is a Base Object.

         Object name: nhdpIfHelloMessagePeriodicXmits

         Object type: Counter32

   o  Total number of sent triggered HELLO messages on an interface

         This is a Base Object.

         Object name: nhdpIfHelloMessageTriggeredXmits

         Object type: Counter32

   o  Acquire history of HELLO message scheduling instances for a given
      time duration on an interface
         It is desirable to develop the history of the exact timestamps
         of each HELLO message that has been sent as well as the type of
         the message (triggered or periodical).  The list of events
         starts at the given point of time t0 and ends at the given time
         t1.

         This is a Derived Object to be pulled from the REPORT-MIB.  It
         is derived from, e.g., the nhdpIfHelloMessagePeriodicXmits Base
         Object from the NHDP-MIB along with the capabilities derived
         from the reportHistoryGroup from the REPORT-MIB.

         Object type: SEQUENCE OF (TimeStamp, nhdpMessageType)

   o  Histogram of the intervals between HELLO messages on an interface

         It is desirable to track the values (in a 2-dimensional array)
         that represent a histogram of intervals between HELLO messages,
         separated by periodic and triggered HELLOs. types.  The histogram
         displays would
         display the distribution of intervals between two consecutive
         HELLOs of the same type (triggered or periodical) using a given
         bin size.  It includes all HELLOs that have been sent after the
         given time t0 and before the given time t1.

         This is a Derived Object to be pulled from the REPORT-MIB.  It
         can be derived from, e.g., the nhdpIfHelloMessagePeriodicXmits
         Base Object from the NHDP-MIB along with the capabilities
         derived from the reportHistoryGroup from the REPORT-MIB.  The
         network management application could convert this information
         into the desired histogram.

         Object type: SEQUENCE OF (nhdpMessageType, TimeTicks,
         Unsigned32)

   o  Changes of the frequency of the message scheduling on an interface

         This object will divide the given time interval from t0 to t1
         into a given number of equal parts.  It then creates a
         histogram for each part and calculates the distances (e.g.
         using (using the
         Bhattacharyya distance) between each two adjacent histograms in
         time.  A higher value between two histograms means more
         difference between the histograms.  For instance, this is
         representative of an event that suddenly sends many triggered
         HELLO messages, whereas before there have been only very few
         such triggered messages have been transmitted. messages.

         This is a Derived Object to be pulled from the REPORT-MIB, as
         previously discussed, albeit this is a bit more complex with
         respect to the management application.

         Object type: SEQUENCE OF (nhdpMessageType, TimeStamp, Float32)

   o  Average number of sent HELLO messages per second between the given
      time t0 and t1 on an interface
         This is a Derived Object to be pulled from the
         reportSampledGroup from the REPORT-MIB.  It is derived from,
         e.g., the nhdpIfHelloMessageXmits Base Object.

         Object type: Float32

   o  Average number of received HELLO messages per second on an
      interface between the given time t0 and t1

         This is a Derived Object to be pulled from the REPORT-MIB.  See
         the previous discussion.

         Object type: Float32

   o  Total accumulated size in octets of sent HELLO messages on an
      interface

         This is a Base Object.

         Object name: nhdpIfHelloMessageXmitAccumulatedSize

         Object type: Counter32

   o  Total accumulated size in octets of received HELLO messages on an
      interface

         This is a Base Object.

         Object name: nhdpIfHelloMessageRecvdAccumulatedSize

         Object type: Counter32

   o  Average size in octets of sent HELLO messages between the given
      time t0 and t1 on an interface.

         This is a Derived Object to be pulled from the
         reportSampledGroup from the REPORT-MIB.  It is derived from,
         e.g., the nhdpIfHelloMessageRecvdAccumulatedSize Base Object
         from this NHDP-MIB.

         Object type: Float32

   o  Average size in octets of received HELLO messages between the
      given time t0 and t1 on an interface

         This is a Derived Object to be pulled from the REPORT-MIB.  See
         previous discussion.

         Object type: Float32

   o  Total accumulated number of advertised symmetric neighbors in
      HELLOs on that interface. interface
         This is a Base Object.

         Object name:
         nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount

         Object type: Counter32

   o  Total accumulated number of advertised heard neighbors in HELLOs
      on that interface

         This is a Base Object.

         Object name:
         nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount

         Object type: Counter32

   o  Total accumulated number of advertised lost neighbors in HELLOs on
      that interface

         This is a Base Object.

         Object name: nhdpIfHelloMessageXmitAccumulatedLostNeighborCount

         Object type: Counter32

   o  Number of expected packets from a given neighbor based on the
      packet sequence number on an interface

         This is a Base Object.

         Object name: nhdpDiscIfExpectedPackets

         Object type: Counter32

   o  Success rate of received packets (number of received packets
      divided by number of expected packets based on the packet sequence
      number).
      number)

         This is a Derived Object to be pulled from this NHDP-MIB.  It
         is derived from, e.g., the nhdpDiscIfRecvdPackets and the
         nhdpDiscIfExpectedPackets Base Objects defined in this MIB.
         This metric is then computed by the network management
         application.

         Object type: Float32

   The following objects inspect the frequency of all Neighbor Set
   changes:

   o  Number of Neighbor Set changes

         This object counts each Neighbor Set change.  A change occurs
         whenever a new Neighbor Tuple has been added, a Neighbor Tuple
         has been removed or any entry of a Neighbor Tuple has been
         modified.

         This is a Base Object.

         Object name: nhdpNibNeighborSetChanges

         Object type: Counter32

   o  Acquire history of Neighbor Set changes

         This object returns the history of the exact timestamps of each
         time the Neighbor Set has been changed.

         This is a Derived Object to be pulled from the
         reportHistoryGroup of the REPORT-MIB.  It is derived from the
         previously discussed Base Object.

         Object type: SEQUENCE OF TimeStamp

   o  Histogram of the intervals between Neighbor Set changes

         Returns the values (in a 2-dimensional array) that represent a
         histogram of intervals between Neighbor Set changes.

         This is a Derived Object to be pulled from the
         reportHistoryGroup from the REPORT-MIB.  It is derived from the
         previously discussed Base Object.  The network management
         application would develop the histograms based upon lists
         obtained from the REPORT-MIB.

         Object type: SEQUENCE OF (TimeTicks, Unsigned32)

   o  Changes of the frequency of the Neighbor Set changes

         This object will divide the given time interval from t0 to t1
         into a given number of equal parts.  It then creates a
         histogram for each part and calculates the distances (e.g.
         using (using the
         Bhattacharyya distance) between each two adjacent histograms in
         time.  A higher value between two histograms means more
         difference between the histograms.

         This is a Derived Object to be pulled from the
         reportHistoryGroup from the REPORT-MIB.  It is derived from the
         previously discussed Base Object.  The network management
         application could then compute the desired metrics.

         Object type: SEQUENCE OF (TimeStamp, Float32)

   The next objects examine the uptime of a given neighbor:

   o  Number of changes of a Neighbor Tuple

         Returns the number of changes to the given Neighbor Tuple.

         This is a Base Object.

         Object name: nhdpDiscNeighborNibNeighborSetChanges

         Object type: Counter32

   o  Neighbor uptime

         Returns the number of milliseconds hundredths of a second since the Neighbor
         Tuple corresponding to the given neighbor exists. was registered

         This is a Base Object.

         Object name: nhdpDiscNeighborNibNeighborSetUpTime

         Object type: Unsigned32 TimeTicks

   o  Acquire history of change of onlink status of a given neighbor

         This object returns the history of the exact timestamps of each
         time the neighbor becomes onlink or offlink.  A neighbor is
         said to become "onlink" if a new Neighbor Tuple is created that
         corresponds to the given neighbor.  It becomes "offlink" if
         such a tuple has been deleted.

         This is a Derived Object to be pulled from the
         reportHistoryGroup of the REPORT-MIB.  It is derived from,
         e.g., the nhdpDiscNeighborNibNeighborSetChanges Base Object
         defined in this MIB.

         Object type: SEQUENCE OF TimeStamp

   o  Histogram of the intervals between a change of the onlink status
      of a given neighbor

         Returns the values that represent a histogram of intervals
         between a change of the onlink status of a given neighbor.  The
         histogram includes all changes that have been made after the
         given time t0 and before the given time t1.

         This is a Derived Object to be pulled from the
         reportHistoryGroup of the REPORT-MIB.  It is derived from, e.g.
         the nhdpDiscNeighborNibNeighborSetChanges Base Object defined
         in this MIB.  This object sits in the
         nhdpDiscNeighborSetPerfTable which is indexed by the
         nhdpDiscNeighborSetRouterId.

         Object type: SEQUENCE OF (TimeTicks, Unsigned32)

   The following objects examine the stability of a neighbor.  A
   neighbor is said to be unstable if it "flaps" frequently between
   several links.  It is said to be stable if the set of Link Tuples
   that correspond to the given neighbor is stationary.

   o  Count the changes of the interface over which a given neighbor can
      be reached. reached

         This object counts each time the neighbor changes the interface
         over which it is reachable.  That means that the corresponding
         Link Tuple of the given link moves from the Link Set of one
         interface to another interface.

         This is a Base Object.

         Object name: nhdpDiscNeighborNibNeighborSetReachableLinkChanges

         Object type: Counter32

   o  Acquire history of changes of the interface over which a given
      neighbor can be reached. reached

         This object returns the history of the exact timestamps of each
         time the neighbor changes the interface over which it is
         reachable.  That means that the corresponding Link Tuple of the
         given link moves from the Link Set of one interface to another
         interface.

         This is a Derived Object to be pulled from the
         reportHistoryGroup of the REPORT-MIB.  It is derived from,
         e.g., the nhdpDiscNeighborNibNeighborSetReachableLinkChanges
         Base Object.  The network management could develop the desired
         histogram based upon the information retrieved from the REPORT-
         MIB.

         Object type: SEQUENCE OF (TimeStamp)

   o  Histogram of the intervals between a change of the interface over
      which a given neighbor is reachable

         Returns the values that represent a histogram of intervals
         between a change of the interface over which a given neighbor
         is reachable after the given time t0 and before the given time
         t1.

         This is a Derived Object to be pulled from the
         reportHistoryGroup from the REPORT-MIB.  It is derived from the
         previously discussed Base Object,
         nhdpDiscNeighborNibNeighborSetChanges counter.  The network
         management application would develop the histograms based upon
         lists obtained from the REPORT-MIB.

         Object type: SEQUENCE OF (TimeTicks, Unsigned32)

   The following objects inspect the stability of a given 2-hop
   neighbor:

   o  Count the changes of the N2_neighbor_iface_addr_list of a given
      2-hop neighbor

         This object returns the count of the times the 2-hop neighbor
         changes its N2_neighbor_iface_addr_list, i.e. the neighbor over
         which it is reachable.

         This is a Base Object.

         Object name: nhdpIib2HopSetPerfChanges

         Object type: Counter32

   o  Acquire history of changes of the N2_neighbor_iface_addr_list of a
      given 2-hop neighbor

         This object returns the history of the exact timestamps of each
         time the 2-hop neighbor changes its
         N2_neighbor_iface_addr_list, i.e. the neighbor over which it is
         reachable.

         This is a Derived Object to be pulled from the
         reportHistoryGroup of the REPORT-MIB.  It is derived from the
         previously discussed Base Object, nhdpIib2HopSetPerfChanges
         counter.

         Object type: SEQUENCE OF (TimeStamp)

   o  Histogram of the intervals between a change of a 2-hop neighbor's
      N2_neighbor_iface_addr_list

         Returns the values that represent a histogram of intervals
         between a change of the 2-hop neighbor's
         N2_neighbor_iface_addr_list after the given time t0 and before
         the given time t1.

         This is a Derived Object to be pulled from the
         reportHistoryGroup from the REPORT-MIB.  It is derived from the
         previously discussed Base Object, nhdpIib2HopSetPerfChanges
         counter.  The network management application would develop the
         histograms based upon lists obtained from the REPORT-MIB.

         Object type: SEQUENCE OF (TimeTicks, Unsigned32)

   The next objects examine the uptime of a given 2-hop neighbor:

   o  2-hop Neighbor uptime

         Returns the number of milliseconds hundredths of a second since the 2-Hop
         Tuple corresponding to the given 2-hop neighbor IP address exists. was
         registered.

         This is a Base Object.

         Object name: nhdpIib2HopSetPerfUpTime

         Object type: Unsigned32 TimeTicks

   o  Acquire history of change of onlink status of a given 2-hop
      neighbor

         This object returns the history of the exact timestamps of each
         time the 2-hop neighbor becomes onlink or offlink.  A 2-hop
         neighbor is said to become "onlink" if a new 2-hop Tuple is
         created that corresponds to the given 2-hop neighbor.  It
         becomes "offlink" if such a tuple has been deleted.

         This is a Derived Object to be pulled from the
         reportHistoryGroup of the REPORT-MIB.  It is derived from the
         previously discussed Base Object, nhdpIib2HopSetPerfChanges
         counter.

         Object type: SEQUENCE OF (TimeStamp)

   o  Histogram of the intervals between a change of the onlink status
      of a given 2-hop neighbor

         Returns the values that represent a histogram of intervals
         between a change of the onlink status of a given 2-hop
         neighbor.  The histogram includes all changes that have been
         made after the given time t0 and before the given time t1.

         This is a Derived Object to be pulled from the
         reportHistoryGroup from the REPORT-MIB.  It is derived from the
         previously discussed Base Object, nhdpIib2HopSetPerfChanges
         counter.  The network management application would develop the
         histograms based upon lists obtained from the REPORT-MIB.

         Object type: SEQUENCE OF (TimeTicks, Unsigned32)

5.4.  Notifications

   This section describes the use of notifications, and mechanisms to
   enhance the ability to manage NHDP networks.

5.4.1.  Introduction

   Notifications can be emitted by an NHDP router as a reaction a to
   specific event.  This allows a network manager to efficiently
   determine the source of problems or significant changes of
   configuration or topology, instead of polling a possibly large number
   of NHDP routers.

5.4.2.  Notification Generation

   When an exception event occurs, the application notifies the local
   agent, which sends a notification to the appropriate SNMP management
   stations.  The message includes the notification type and may include
   a list of notification-specific variables.  Section 7 contains,
   amongst others, the notification definitions, which includes the
   variable lists.  At least one IP address of the NHDP router that
   originates the notification is included in the variable list so that
   the network manager may determine the source of the notification.

5.4.3.  Limiting Frequency of Notifications

   To limit the frequency of notifications, the following additional
   mechanisms are suggested, similar to those in [RFC4750]:

5.4.3.1.  Ignoring Initial Activity

   The majority of critical events occur when NHDP is enabled on a
   router, at which time the symmetric neighbors and two-hop neighbors
   of the NHDP router are discovered.  During this initial period, a
   potential flood of notifications is unnecessary since the events are
   expected.  To avoid unnecessary notifications, a router should not
   originate expected notifications until a certain time interval has
   elapsed, which is to be predefined by the network manager.

5.4.3.2.  Throttling Traps

   The mechanism for throttling the notifications is the same as in
   [RFC4750] (i.e. the amount of transmitted notifications per time is
   bounded).

   Appropriate values for the window time and upper bound are to be
   selected by the network manager and depend on the deployment of the
   MANET.

5.4.3.3.  One Notification per Event

   Similar to the according mechanism in [RFC4750], only one
   notification is sent per event.

6.

5.5.  Relationship to Other MIB Modules

   This section specifies the relationship of the MIB modules contained
   in this document to other standards, particularly to standards
   containing other MIB modules.  Definitions imported from other MIB
   modules and other MIB modules that SHOULD be implemented in
   conjunction with the MIB module contained within this document are
   identified in this section.

6.1.

5.5.1.  Relationship to the SNMPv2-MIB

   The 'system' group in the SNMPv2-MIB [RFC3418] is defined as being
   mandatory for all systems, and the objects apply to the entity as a
   whole.  The 'system' group provides identification of the management
   entity and certain other system-wide data.  The NHDP-MIB does not
   duplicate those objects.

6.2.

5.5.2.  Relationship to Routing Protocol MIBs relying on the NHDP-MIB

   [NHDP] allows OLSRv2-MIB

   The OLSRv2 [OLSRv2] routing protocols to rely on protocol relies upon the neighborhood
   information that is discovered by means of HELLO message exchange. NHDP protocol
   for neighbor reachability information.  In order to allow for troubleshoot,
   fault isolate, and manage such
   routing protocols through a routing the OLSRv2 protocol MIB, through the OLSRv2-MIB
   [OLSRv2], it may be desired was necessary to align the State Group tables of the NHDP-MIB and the routing
   protocol MIB. these
   two MIBs.  This is accomplished through the definition of two
   TEXTUAL-CONVENTIONS in the NHDP-MIB:
   TEXTUAL-CONVENTIONS, i.e. the NeighborInterfaceId and the
   NeighborRouterId.  These object types type are used to develop indexes into
   common NHDP-MIB and routing protocol OLSRv2-MIB State Group tables.  These objects are
   locally significant but should be locally common to the NHDP-MIB and the routing protocol MIB
   OLSRv2-MIBs implemented on a common networked router. device.  This will
   allow for improved cross referencing of information across the two
   MIBs.

6.3.

5.5.3.  Relationship to the REPORT-MIB

   This document describes several many useful Performance Management metrics
   for the management of NHDP network routers. devices.  However, not all of
   these metrics are explicitly defined solely within the context of
   this NHDP-MIB.  Some of these metrics are obtained through joint
   interaction between this MIB and the REPORT-MIB [REPORT].  This NHDP-
   MIB defines the minimum necessary objects (often of type COUNTER)
   which form the underlying basis for more sophisticated Performance
   Management reporting available in conjunction with the REPORT-MIB.
   Note however, that the implementation of the NHDP-MIB is independent
   of any implementations of the REPORT-MIB.  See Section 5.3 for a the discussion of the
   performance metrics for NHDP
   management.

6.4. management in the Performance Group
   section of this document.

5.5.4.  MIB modules required for IMPORTS

   The following NHDP-MIB module IMPORTS objects from SNMPv2-SMI
   [RFC2578], SNMPv2-TC [RFC2579], SNMPv2-CONF [RFC2580], IF-MIB
   [RFC2863], INET-ADDRESS-MIB [RFC4001], and SMIng [RFC3781].

7.

5.6.  Definitions

   This section contains the MIB module defined by the specification.

NHDP-MIB DEFINITIONS ::= BEGIN
IMPORTS

    Float32
                 FROM SMIng  --[RFC3781]

    MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
    Counter32, Integer32, Unsigned32, mib-2 mib-2, TimeTicks
                 FROM SNMPv2-SMI  --[RFC2578]

    TEXTUAL-CONVENTION, StorageType, TimeStamp, TruthValue, RowStatus
                 FROM SNMPv2-TC  --[RFC2579]

    MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
                 FROM SNMPv2-CONF  --[STD58]

    InetAddressType, InetAddress,
    InetAddressPrefixLength
                 FROM INET-ADDRESS-MIB  --[RFC4001]

    InterfaceIndexOrZero
                 FROM IF-MIB  --[RFC2863]
    ;

nhdpMIB MODULE-IDENTITY
       LAST-UPDATED "201007071000Z" "201011081000Z" -- July 07,2010 November 08,2010
       ORGANIZATION "IETF MANET working group"
       CONTACT-INFO
       "WG E-Mail: manet@ietf.org

        WG Chairs: ian.chakeres@gmail.com
                   jmacker@nrl.navy.mil

        Editors:   Ulrich Herberg
                   Ecole Polytechnique
                   LIX
                   91128 Palaiseau Cedex
                   France
                   +33 1 69 33 41 26
                   ulrich@herberg.name
                   http://www.herberg.name/

                   Robert G. Cole
                   US Army CERDEC
                   Space and Terrestrial Communications
                   328 Hopkins Road
                   Bldg 245, Room 16
                   Aberdeen Proving Ground, MD 21005
                   USA
                   +1 410 278-6779
                   robert.g.cole@us.army.mil
                   http://www.cs.jhu.edu/~rgcole/
                   Ian D Chakeres
                   CenGen
                   9250 Bendix Road North
                   Columbia, Maryland  21045
                   USA
                   ian.chakeres@gmail.com
                   http://www.ianchak.com/"

       DESCRIPTION
           "This NHDP-MIB NHDP MIB module is applicable to routers devices
            implementing the Neighborhood Discovery Protocol
            defined in [RFC XXXX].

            Copyright (C) The IETF Trust (2009). This version
            of this MIB module is part of RFC xxxx; XXXX; see the RFC
            itself for full legal notices."

       -- revision
       REVISION    "201007071000Z"    "201011081000Z"   -- July 07, November 08, 2010
       DESCRIPTION
         "The eight version of this MIB module,
          published as draft-ietf-manet-nhdp-mib-05.txt.
          This is TBD."
       REVISION    "201006301000Z"   -- June 30, 2010
       DESCRIPTION
         "The seventh version of this MIB module,
          published as draft-ietf-manet-nhdp-mib-04.txt.
          Cleaned up and condensed the textual material
          in the earlier sections of this draft.  Checked  Check
          consistency with NHDP draft, i.e.,
          draft-ietf-manet-nhdp-12.txt."
       REVISION    "201003081000Z"   -- March 08, 2010
       DESCRIPTION
         "The sixth version of this MIB module,
          published as draft-ietf-manet-nhdp-mib-03.txt.
          Added the local nhdpIfIndex to the
          nhdpIibLinkSetTable."
       REVISION    "200911091000Z"   -- November 09, 2009
       DESCRIPTION
         "The fifth version of this MIB module,
          published as draft-ietf-manet-nhdp-mib-02.txt.
          Cleaned up a few things and updated to newest
          revision of NHDP draft."
       REVISION    "200910211000Z"   -- October 21, 2009
       DESCRIPTION
         "The fourth version of this MIB module,
          published as draft-ietf-manet-nhdp-mib-01.txt.
          Added objects pertaining to the performance
          group."
       REVISION    "200905031500Z"   -- May 3, 2009
       DESCRIPTION
         "The third version of this MIB module,
          published as draft-ietf-manet-nhdp-mib-00.txt.
          No major revisions to this draft.  Mainly rev'd
          as a new working group document.  But also cleaned
          syntax errors, typos and other issues discovered
          with 'smilint'."
       REVISION    "200902151500Z"   -- February 15, 2009
       DESCRIPTION
         "The second version of this MIB module,
          published as draft-cole-manet-nhdp-mib-01.txt.  Major
          update adding objects for configuration and state."
       REVISION    "200804251500Z"   -- April 25, 2008
       DESCRIPTION
         "The original version of this MIB module,
          published as draft-cole-manet-nhdp-mib-00.txt."
       -- RFC-Editor assigns XXXX
       ::= { mib-2 998 }   -- to be assigned by IANA

--
-- Top-Level Components of this MIB
--
nhdpNotifications OBJECT IDENTIFIER ::= { nhdpMIB 0 }
nhdpObjects       OBJECT IDENTIFIER ::= { nhdpMIB 1 }
nhdpConformance   OBJECT IDENTIFIER ::= { nhdpMIB 2 }

--
-- Textual Conventions
--

NeighborIfIndex ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "d"
    STATUS       current
    DESCRIPTION
        "A locally arbitrary unique identifier associated with an
         NHDP neighbor interface.

         All objects of type NeighborIfIndex are assigned by the agent
         out of a common number space. In other words, NeighborIfIndex
         values assigned to entries in one table must not overlap with
         NeighborIfIndex values assigned to entries in another
         table.

         The NeighborIfIndex defines a discovered interface of a 1-hop
         or 2-hop neighbor of the local router.  The agent identifies
         a unique neighbor interface through the receipt of an
         address list advertised through an NHDP HELLO message.

         The value for each discovered neighbor interface must remain
         constant at least from one re-initialization of the entity's
         network management system to the next re-initialization,
         except that if an application is deleted and re-created.

         The specific value is meaningful only within a given SNMP
         entity. An NeighborIfIndex value must not be re-used until
         the next agent restart."
    SYNTAX       Unsigned32 (1..2147483647)

NeighborRouterId ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "d"
    STATUS       current
    DESCRIPTION
        "A locally arbitrary unique identifier associated with an
         NHDP discovered peer router.

         All objects of type NeighborRouterId are assigned by the
         agent out of a common number space.

         The NeighborRouterId defines a discovered NHDP peer of
         the local router.  The agent identifies a
         unique neighbor interface through the receipt of an address
        list
         lists advertised through an NHDP HELLO message. messages.

         The value for each discovered neighbor ID must remain
         constant at least from one re-initialization of the entity's
         network management system to the next re-initialization,
         except that if an application is deleted and re-created.

         The specific value is meaningful only within a given SNMP
         entity. An NeighborRouterId value must not be re-used until
         the next agent restart."
    SYNTAX       Unsigned32 (1..2147483647)

--
-- nhdpObjects
--

--    1)    Configuration Objects Group
--    2)    State Objects Group
--    3)    Performance Objects Group
--
-- nhdpConfigurationObjGrp
--

-- Contains the NHDP objects which configure specific options
-- which determine the overall performance and operation of the
-- discovery protocol.

nhdpConfigurationObjGrp OBJECT IDENTIFIER ::= { nhdpObjects 1 }

   nhdpInterfaceTable  OBJECT-TYPE
      SYNTAX      SEQUENCE OF NhdpInterfaceEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "nhdpInterfaceTable
         "The NHDP Interface Table describes the
          configuration of the interfaces of this NHDP router. device.
          The ifIndex is from the interfaces group
          defined in the Interfaces Group MIB.

          nhdpIfStatus

          The object 'nhdpIfStatus' provides the functionality
          expected by the NHDP in the Local Interface Base (LIB)
          Local Interface Set Table.  Hence, the Local Interface
          Set Table will not be defined below.

          The objects in this table are persistent and when
          written the entity SHOULD save the change to
          non-volatile storage."
      REFERENCE
         "RFC 2863 - The Interfaces Group MIB, McCloghrie,
          K., and F. Kastenholtz, June 2000."
   ::= { nhdpConfigurationObjGrp 1 }

   nhdpInterfaceEntry OBJECT-TYPE
      SYNTAX      NhdpInterfaceEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "nhdpInterfaceEntry
         "The NHDP interface entry describes one NHDP
          local interface configuration as indexed by
          its ifIndex as defined in the Standard MIB II
          Interface Table (RFC2863)."
      INDEX { nhdpIfIndex }
   ::= { nhdpInterfaceTable 1 }

   NhdpInterfaceEntry ::=
      SEQUENCE {
         nhdpIfIndex
            InterfaceIndexOrZero,
         nhdpIfStatus
            TruthValue,
         nhdpHelloInterval
            Unsigned32,
         nhdpHelloMinInterval
            Unsigned32,
         nhdpRefreshInterval
            Unsigned32,
         nhdpLHoldTime
            Unsigned32,
         nhdpHHoldTime
            Unsigned32,
         nhdpHystAcceptQuality
            Float32,
            Integer32,
         nhdpHystRejectQuality
            Float32,
            Integer32,
         nhdpInitialQuality
            Float32,
            Integer32,
         nhdpInitialPending
            TruthValue,
         nhdpHpMaxJitter
            Unsigned32,
         nhdpHtMaxJitter
            Unsigned32,
         nhdpIfRowStatus
            RowStatus
         }

   nhdpIfIndex  OBJECT-TYPE
      SYNTAX      InterfaceIndexOrZero
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "The ifIndex for this interface."
      ::= { nhdpInterfaceEntry 1 }

   nhdpIfStatus  OBJECT-TYPE
      SYNTAX      TruthValue
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhpdIfStatus
         "The nhpdIfStatus indicates whether this interface is
          a MANET interface. A value of true(1) indicates
          that the interface is a MANET interface.  A value of
          false(2) indicates that the interface is not a MANET
          interface. This corresponds to the I_manet parameter
          in the Local Interface Set, which is omitted in this MIB
          due to the redundancy with the nhdpInterfaceTable."
      DEFVAL { 2 }
   ::= { nhdpInterfaceEntry 2 }

   --
   -- Interface Parameters - Message Intervals
   --
   nhdpHelloInterval  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhpdHelloInterval corresponds to
         HELLO_INTERVAL
         "The nhpdHelloInterval is the maximum time
          between the transmission of NHDP. two successive
          HELLO messages on this MANET interface.

          The following constraint applies constraints apply to this
          parameter:
             nhpdHelloInterval > = nhdpHelloMinInterval"
             'nhpdHelloInterval ge 0'
             'nhpdHelloInterval ge nhdpHelloMinInterval'"
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 2000 }
   ::= { nhdpInterfaceEntry 3 }

   nhdpHelloMinInterval  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhpdHelloMinInterval corresponds to
         HELLO_MIN_INTERVAL
         "The nhpdHelloMinInterval is the minimum interval
          between transmission of NHDP." two successive HELLO
          messages, on this MANET interface.

          The following constraints apply to this
          parameter:
             'nhdpHelloMinInterval gt 0'"
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 500 }

   ::= { nhdpInterfaceEntry 4 }

   nhdpRefreshInterval  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhpdRefreshInterval corresponds to
         REFRESH_INTERVAL
         "The nhpdRefreshInterval is the maximum interval
          between advertisements, in a HELLO message on this
          MANET interface, of NHDP. each 1-hop neighbor network
          address and its status.

          The following constraint applies to this
          parameter:
             nhdpRefreshInterval > = nhdpHelloInterval"
             'nhdpRefreshInterval ge nhdpHelloInterval'"
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 2000 }
   ::= { nhdpInterfaceEntry 5 }

   --
   -- Interface Parameters - Information Validity times
   --
   nhdpLHoldTime  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpLHoldTime corresponds to
         L_HOLD_TIME of NHDP."
      REFERENCE
         "The NHDP draft.
          Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 6000 }
   ::= { nhdpInterfaceEntry 6 nhdpLHoldTime is used to define the time
          for which a recently used and replaced
          originator address is used to recognize
          the router's own messages.

          The following constraint applies to this
          parameter:
              'nhdpLHoldTime ge 0'"
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 6000 }
   ::= { nhdpInterfaceEntry 6 }
   nhdpHHoldTime  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpHHoldTime corresponds
         "The nhdpHHoldTime is used to
         H_HOLD_TIME of NHDP." define the time
          for which a recently used and replaced
          originator address is used to recognize
          the router's own messages.

          The following constraint applies to this
          parameter:
              'nhdpHHoldTime ge 0'"
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 6000 }
   ::= { nhdpInterfaceEntry 7 }

   --
   -- Interface Parameters - Link Quality
   -- (is optional and settings define operation)
   --
   nhdpHystAcceptQuality  OBJECT-TYPE
      SYNTAX      Float32      Integer32 (0..255)
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpHystAcceptQuality corresponds to
         HYST_ACCEPT of NHDP.
         "The nhdpHystAcceptQuality is the
          link quality threshold at or above
          which a link becomes usable,
          if it was not already so.

          The following constraint applies to this
          parameter:
              0 < =
              '0 le nhdpHystRejectQuality
                < =
                 le nhdpHystAcceptQuality < = 1.0" le 255'"
      REFERENCE
         "The NHDP draft.
          Section 5 on Protocol Parameters and
          Constraints."
      --
      DEFVAL { 1.0 255 }
   ::= { nhdpInterfaceEntry 8 }

   nhdpHystRejectQuality  OBJECT-TYPE
      SYNTAX      Float32      Integer32 (0..255)
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpHystRejectQuality corresponds to
         HYST_REJECT of NHDP.
         "The nhdpHystRejectQuality is the
          link quality threshold below which
          a link becomes unusable, if it
          was not already so.

          The following constraint applies to this
          parameter:
              0 < =
              '0 le nhdpHystRejectQuality
                < =
                 le nhdpHystAcceptQuality < = 1.0" le 255'"
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      --
      DEFVAL { 0.0 0 }
   ::= { nhdpInterfaceEntry 9 }

   nhdpInitialQuality  OBJECT-TYPE
      SYNTAX      Float32      Integer32 (0..255)
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpInitialQuality corresponds to
         INITIAL_QUALITY
         "The nhdpInitialQuality is the
          initial quality of NHDP. a newly
          identified link.

          The following constraint applies to this
          parameter:
              0 < =
              '0 le nhdpInitialQuality < = 1.0" le 255'"
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      --
      DEFVAL { 1.0 255 }
   ::= { nhdpInterfaceEntry 10 }

   nhdpInitialPending  OBJECT-TYPE
      SYNTAX      TruthValue
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpInitialPending corresponds to
         INITIAL_PENDING of NHDP."
         "The nhdpInitialPending is defined as
          follows:

          If true, then a newly identified link
          is considered pending, and is not
          usable until the link quality has
          reached or exceeded the
          nhdpHystAccept threshold."
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 2 }   -- i.e. false
   ::= { nhdpInterfaceEntry 11 }

   --
   -- Interface Parameters - Jitter
   --
   nhdpHpMaxJitter  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpHpMaxJitter corresponds to
         HP_MAXJITTER
         "The nhdpHpMaxJitter represents the
          value of NHDP." MAXJITTER used in [4] for
          periodically generated HELLO messages
          on this MANET interface."
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 500 }
   ::= { nhdpInterfaceEntry 12 }

   nhdpHtMaxJitter  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpHtMaxJitter corresponds to
         HT_MAXJITTER
         "The nhdpHtMaxJitter represents the
          value of NHDP." MAXJITTER used in [4] for
          externally triggered HELLO messages
          on this MANET interface."
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 500 }
   ::= { nhdpInterfaceEntry 13 }
   nhdpIfRowStatus  OBJECT-TYPE
      SYNTAX      RowStatus
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
         "This object permits management of the table
         by facilitating actions such as row creation,
         construction, and destruction. The value of
         this object has no effect on whether other
         objects in this conceptual row can be
         modified."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpInterfaceEntry 14 }

   --
   -- Router Parameters - Information Validity Time
   --
   nhdpNHoldTime  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpNHoldTime corresponds
         "The nhdpHHoldTime is used as the period
          during which former 1-hop neighbor
          addresses are advertised as lost in
          HELLO messages, allowing recipients of
          these HELLO messages to
         N_HOLD_TIME accelerate removal
          of NHDP. information from their 2-Hop Sets.
          N_HOLD_TIME can be set to zero if
          accelerated information removal is not
          required.

          The following constraint applies to this
          parameter:
              'nhdpHHoldTime ge 0'

          This object is persistent and when written
          the entity SHOULD save the change to
          non-volatile storage."
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 6000 }
   ::= { nhdpConfigurationObjGrp 2 }
   nhdpIHoldTime  OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "milliseconds"
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "nhdpIHoldTime corresponds
         "The nhdpIHoldTime is the period
          for which a recently used local
          interface address is recorded.

          The following constraint applies to
         I_HOLD_TIME of NHDP. this
          parameter:
              'nhdpIHoldTime ge 0'

          This object is persistent and when written
          the entity SHOULD save the change to
          non-volatile storage."
      REFERENCE
         "The NHDP draft.
          See Section 5 on Protocol Parameters and
          Constraints."
      DEFVAL { 6000 }
   ::= { nhdpConfigurationObjGrp 3 }

--
-- nhdpStateObjGrp
--

-- Contains information describing the current state of the NHDP
-- process.

nhdpStateObjGrp    OBJECT IDENTIFIER ::= { nhdpObjects 2 }

   -- Two Before building the NHDP Information Bases, we define
   -- two new constructs have been defined in this MIB for
   -- indexing into the following
   -- tables and indexing into other tables in other MIBs.
   -- The NeighborIfIndex defines a unique (to the local router)
   -- index referencing a discovered interface on another
   -- router within the NHDP MANET. The NeighborRouterId defines a
   -- unique (to the local router) index referencing a discovered
   -- router within the NHDP MANET.

   -- Note: This table is indexed by an IpAddr associated with
   -- NeighborIfIndex.  Multiple addresses can be associated
   -- with a given NeighborIfIndex.  Each NeighborIfIndex is
   -- associated with a NeighborRouterId.  Throughout this MIB,
   -- the NeighborIfIndex and the NeighborRouterId are used
   -- to define the set of IpAddrs related to the interface
   -- in discussion.

   nhdpUpTime OBJECT-TYPE
       SYNTAX       TimeTicks
       MAX-ACCESS   read-only
       STATUS       current
       DESCRIPTION
           "The number of hundredths of a second since the
            current NHDP process was initialized."
       REFERENCE
          "The NHDP draft."
    ::= { nhdpStateObjGrp 1 }

   nhdpDiscIfSetTable OBJECT-TYPE
      SYNTAX       SEQUENCE OF NhdpDiscIfSetEntry
       MAX-ACCESS   not-accessible
       STATUS       current
       DESCRIPTION
           "A router's set of discovered interfaces on
            neighboring routers."
       REFERENCE
          "The NHDP draft."
    ::= { nhdpStateObjGrp 1 2 }

    nhdpDiscIfSetEntry  OBJECT-TYPE
       SYNTAX      NhdpDiscIfSetEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "The entries include the nhdpDiscRouterId of
           the discovered router, the nhdpDiscIfIndex
           of the discovered interface and the
           current set of addresses associated
           with this neighbor interface.  The
           nhdpDiscIfIndex has to uniquely identify
           the remote interface address sets.  It
           does not
           need to not be unique across the MANET.
           It must be unique within this router."
       REFERENCE
          "This NHDP-MIB draft." document."
       INDEX { nhdpDiscIfSetIpAddrType,
               nhdpDiscIfSetIpAddr }

    ::= { nhdpDiscIfSetTable 1 }

    NhdpDiscIfSetEntry ::=
       SEQUENCE {
          nhdpDiscIfSetRouterId
            NeighborRouterId,
          nhdpDiscIfSetIndex
            NeighborIfIndex,
          nhdpDiscIfSetIpAddrType
            InetAddressType,
          nhdpDiscIfSetIpAddr
            InetAddress,
          nhdpDiscIfSetIpAddrPrefixLen
            InetAddressPrefixLength
         }

   nhdpDiscIfSetRouterId  OBJECT-TYPE
      SYNTAX      NeighborRouterId
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "The NHDP router ID (locally created)
          of a neigboring neighboring router.  Used for cross
          indexing into other NHDP tables and other
          MIBs."
      REFERENCE
         "This NHDP-MIB draft."
   ::= { nhdpDiscIfSetEntry 1 }

   nhdpDiscIfSetIndex  OBJECT-TYPE
      SYNTAX      NeighborIfIndex
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "The NHDP interface index (locally created)
          of a neigbor's neighbor's interface.  Used for cross
          indexing into other NHDP tables and other
          MIBs."
      REFERENCE
         "This NHDP-MIB draft." document."
   ::= { nhdpDiscIfSetEntry 2 }

   nhdpDiscIfSetIpAddrType  OBJECT-TYPE
      SYNTAX      InetAddressType
      MAX-ACCESS  read-only  not-accessible
      STATUS      current
      DESCRIPTION
         "The type of the nhdpDiscIfSetIpAddr
          in the InetAddress MIB [RFC 4001]."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpDiscIfSetEntry 3 }

   nhdpDiscIfSetIpAddr  OBJECT-TYPE
      SYNTAX      InetAddress
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "The nhdpDiscIfSetIpAddr is a
          recently used address of a neighbor
          of this router."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpDiscIfSetEntry 4 }

   nhdpDiscIfSetIpAddrPrefixLen  OBJECT-TYPE
      SYNTAX      InetAddressPrefixLength
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of leading one bits that form the
          mask to be logical-ANDed with the destination address
          before being compared to the value in the
          nhdpDiscIfSetAddr field.  If the resulting
          address block is contained in a block in this
          table, then a match should be returned."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpDiscIfSetEntry 5 }

   -- An NHDP router's Local Information Base (LIB)

      -- Note: Local IF Set Table is not specified in this
      --       MIB because the Entry (foreach IF): (IfAddrList,
      --                      PrefixMask,
      --                      Manet_indication)
      --
      -- This table would be is redundant with
      -- information in nhdpInterfaceTable.
      -- the nhdpInterfaceTable above.  Hence it is not
      -- reproduced within this MIB module.

      -- Removed Interface Addr Set Table
      -- Entry (foreach Addr): (IfAddrRemoved,
      --                        ExpirationTime)

   nhdpLibRemovedIfAddrSetTable OBJECT-TYPE
      SYNTAX       SEQUENCE OF NhdpLibRemovedIfAddrSetEntry
      MAX-ACCESS   not-accessible
      STATUS       current
      DESCRIPTION
         "A router's Removed Interface Address Set records
          network addresses which were recently used as local
          interface network addresses.  If a router's interface
          network addresses are immutable then the Removed
          Interface Address Set is always empty and MAY be omitted.
          It consists of Removed Interface Address Tuples, one
          per network address."
      REFERENCE
          "The NHDP draft."
   ::= { nhdpStateObjGrp 2 3 }

   nhdpLibRemovedIfAddrSetEntry  OBJECT-TYPE
      SYNTAX      NhdpLibRemovedIfAddrSetEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
        "A router's Removed Interface Address Set consists
          of Removed Interface Address Tuples, one per network
          address:

          (IR_local_iface_addr, IR_time)

          The association between these addrs and
          the router's Interface is found in the
          Standard MIB II's IP address addr table
          (RFC1213)."
      REFERENCE
         "The NHDP draft."
      INDEX { nhdpLibRemovedIfAddrSetIpAddrType,
              nhdpLibRemovedIfAddrSetIpAddr }
   ::= { nhdpLibRemovedIfAddrSetTable 1 }

   NhdpLibRemovedIfAddrSetEntry ::=
      SEQUENCE {
          nhdpLibRemovedIfAddrSetIpAddrType
            InetAddressType,
          nhdpLibRemovedIfAddrSetIpAddr
            InetAddress,
          nhdpLibRemovedIfAddrSetIpAddrPrefixLen
            InetAddressPrefixLength,
          nhdpLibRemovedIfAddrSetIfIndex
            InterfaceIndexOrZero,
          nhdpLibRemovedIfAddrSetIrTime
            TimeStamp
            TimeTicks
         }

   nhdpLibRemovedIfAddrSetIpAddrType  OBJECT-TYPE
      SYNTAX      InetAddressType
      MAX-ACCESS  read-only  not-accessible
      STATUS      current
      DESCRIPTION
         "The type of the nhdpLibRemovedIfAddrSetIpAddr
          in the InetAddress MIB [RFC 4001]."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpLibRemovedIfAddrSetEntry 1 }

   nhdpLibRemovedIfAddrSetIpAddr  OBJECT-TYPE
      SYNTAX      InetAddress
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "nhdpLibRemovedIfAddrSetAddr
         "The nhdpLibRemovedIfAddrSetAddr is a
          recently used address of an interface of
          this router."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpLibRemovedIfAddrSetEntry 2 }

   nhdpLibRemovedIfAddrSetIpAddrPrefixLen  OBJECT-TYPE
      SYNTAX      InetAddressPrefixLength
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of leading one bits that form the
          mask to be logical-ANDed with the address
          to determine the network address to which
          this interface is attached."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpLibRemovedIfAddrSetEntry 3 }

   nhdpLibRemovedIfAddrSetIfIndex  OBJECT-TYPE
      SYNTAX      InterfaceIndexOrZero
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Specifies the local IfIndex from which this
            IP address
           Ip addr was recently removed."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpLibRemovedIfAddrSetEntry 4 }

   nhdpLibRemovedIfAddrSetIrTime  OBJECT-TYPE
      SYNTAX      TimeStamp      TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Specifies when this Tuple expires and MUST be removed
           from this table." table.  This represents the number of
           hundredths of a second following the time that
           the current NHDP process was initialized."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpLibRemovedIfAddrSetEntry 5 }

   -- Interface Information Base (IIB)

   --
   -- NHDP Interface Information Base (IIB)
   --

   --     IIB Link Set
   --         Entry (foreach 1-H neighbor): (NeighborIfAddrList,
   --                                        HeardTime,
   --                                        SymTime,
   --                                        Quality,
   --                                        Pending,
   --                                        Lost,
   --                                        ExpireTime)
   nhdpIibLinkSetTable OBJECT-TYPE
      SYNTAX       SEQUENCE OF NhdpIibLinkSetEntry
      MAX-ACCESS   not-accessible
      STATUS       current
      DESCRIPTION
         "A Link Set of an interface records links from
          other routers which are, or recently
          were, 1-hop neighbors."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpStateObjGrp 3 4 }

   nhdpIibLinkSetEntry  OBJECT-TYPE
      SYNTAX      NhdpIibLinkSetEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "A Link Set consists of Link Tuples, each
           representing a single link indexed by the
           local and remote interface pair:

           (L_neighbor_iface_addr_list, L_HEARD_time,
            L_SYM_time, L_quality, L_pending,
            L_lost, L_time).

            Note that L_quality is not included in the
            entries below, because updates may be
            required too frequently." L_time)."
      REFERENCE
         "This NHDP-MIB draft."
      INDEX { nhdpIfIndex,
              nhdpIibLinkSet1HopIfIndex }
   ::= { nhdpIibLinkSetTable 1 }

   NhdpIibLinkSetEntry ::=
      SEQUENCE {
          nhdpIibLinkSet1HopIfIndex
            NeighborIfIndex,
          nhdpIibLinkSetIfIndex
            InterfaceIndexOrZero,
          nhdpIibLinkSetLHeardTime
            TimeStamp,
            TimeTicks,
          nhdpIibLinkSetLSymTime
            TimeStamp,
            TimeTicks,
          nhdpIibLinkSetLQuality
            Integer32,
          nhdpIibLinkSetLPending
            TruthValue,
          nhdpIibLinkSetLLost
            TruthValue,
          nhdpIibLinkSetLTime
            TimeStamp
            TimeTicks
         }

   nhdpIibLinkSet1HopIfIndex  OBJECT-TYPE
      SYNTAX      NeighborIfIndex
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "nhdpIibLinkSet1HopIfIndex
         "The nhdpIibLinkSet1HopIfIndex is
          the value of the NeighborIfIndex (from
          nhdpDiscIfSetTable).
          table nhdpDiscIfSetTable above). This
          object is repeated here to support
          table walks to view the set of neighbors
          of this router."
      REFERENCE
         "The NHDP draft."

   ::= { nhdpIibLinkSetEntry 1 }

   nhdpIibLinkSetIfIndex

   nhdpIibLinkSetLHeardTime  OBJECT-TYPE
      SYNTAX      InterfaceIndexOrZero      TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpIibLinkSetIfIndex is
         "The nhdpIibLinkSetLHeardTime is
          the local router's time until which the MANET
          interface
          index associated with of the symmetric
          link to this entries 1-hop neighbor
          interface.

          The set of IP addresses associated with
          this neighbor's interface
          would be considered heard if not
          considering link quality.  This
          is found measured in
          nhdpDiscIfSetTable." hundredths of a second
          since the NHDP process was last
          initialized."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIibLinkSetEntry 2 }
   nhdpIibLinkSetLHeardTime

   nhdpIibLinkSetLSymTime  OBJECT-TYPE
      SYNTAX      TimeStamp      TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpIibLinkSetLHeardTime corresponds
         "The nhdpIibLinkSetLSymTime is the
          time until which the link to L_HEARD_time the
          1-hop neighbor would be considered
          symmetric if not considering link
          quality.  This is measured in hundredths
          of NHDP." a second since the NHDP process
          was last initialized."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIibLinkSetEntry 3 }

   nhdpIibLinkSetLSymTime

   nhdpIibLinkSetLQuality  OBJECT-TYPE
      SYNTAX      TimeStamp      Integer32 (0..255)
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpIibLinkSetLSymTime corresponds
         to L_SYM_time
         "The nhdpIibLinkSetLQuality is a
          dimensionless number between 0
          (inclusive) and 255 (inclusive)
          describing the quality of NHDP." a link;
          a greater value of L_quality
          indicating a higher quality link."
      REFERENCE
         "The NHDP draft."

   ::= { nhdpIibLinkSetEntry 4 }

   nhdpIibLinkSetLPending  OBJECT-TYPE
      SYNTAX      TruthValue
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpIibLinkSetLPending corresponds
         to L_pending of NHDP"
         "The nhdpIibLinkSetLPending is a
          Boolean flag, describing if a
          link is considered pending (i.e.,
          a candidate, but not yet
          established, link)."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIibLinkSetEntry 5 }

   nhdpIibLinkSetLLost  OBJECT-TYPE
      SYNTAX      TruthValue
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpIibLinkSetLLost corresponds
         "The nhdpIibLinkSetLLost is a
          Boolean flag, describing if a
          link is considered lost due
          to L_lost of NHDP" link quality."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIibLinkSetEntry 6 }

   nhdpIibLinkSetLTime  OBJECT-TYPE
      SYNTAX      TimeStamp      TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpIibLinkSetLTime
         "The nhdpIibLinkSetLTime specifies
          when this Tuple expires and MUST
          be removed." removed.  This is measured in hundredths
          of a second since the NHDP process last
          initialized."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIibLinkSetEntry 7 }

  --
  --     IIB 2-Hop Set
  --         Entry (foreach IF on a 2-H neighbor):

  --                                 (1NeighIfAddrList,
  --                                  2NeighIfAddr,
  --                                  ExpireTime)
  --
   nhdpIib2HopSetTable OBJECT-TYPE
      SYNTAX       SEQUENCE OF NhdpIib2HopSetEntry
      MAX-ACCESS   not-accessible
      STATUS       current
      DESCRIPTION
         "A 2-Hop Set of an interface records network
          addresses of symmetric 2-hop neighbors, and
          the symmetric links to symmetric 1-hop neighbors
          through which these symmetric 2-hop neighbors
          can be reached.  It consists of 2-Hop Tuples,
          each representing a single network address of
          a symmetric 2-hop neighbor, and a single MANET
          interface of a symmetric 1-hop neighbor.

          (N2_neighbor_iface_addr_list,
           N2_2hop_addr, N2_time)."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpStateObjGrp 4 5 }

   nhdpIib2HopSetEntry  OBJECT-TYPE
      SYNTAX      NhdpIib2HopSetEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "The entries include the 2-hop 2 hop neighbor addresses, addrs,
           which act as the table index, and associated
           1-hop
           1 hop symmetric link address addr set, designated through
           the nhdpDiscIfIndex, and an expiration time."
      REFERENCE
         "This NHDP-MIB draft."
      INDEX { nhdpIib2HopSetIpAddressType,
              nhdpIib2HopSetIpAddress }
   ::= { nhdpIib2HopSetTable 1 }

   NhdpIib2HopSetEntry ::=
      SEQUENCE {
          nhdpIib2HopSetIpAddressType
            InetAddressType,
          nhdpIib2HopSetIpAddress
            InetAddress,
          nhdpIib2HopSet1HopIfIndex
            NeighborIfIndex,
          nhdpIib2HopSetN2Time
            TimeStamp
            TimeTicks
         }

   nhdpIib2HopSetIpAddressType  OBJECT-TYPE
      SYNTAX      InetAddressType
      MAX-ACCESS  read-only  not-accessible
      STATUS      current
      DESCRIPTION
         "The type of the nhdpIib2HopSetIpAddress
          in the InetAddress MIB [RFC 4001]."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIib2HopSetEntry 1 }

   nhdpIib2HopSetIpAddress  OBJECT-TYPE
      SYNTAX      InetAddress
      MAX-ACCESS  read-only  not-accessible
      STATUS      current
      DESCRIPTION
         "nhdpIib2HopSetIpAddr corresponds
         to N2_2hop_addr
         "The nhdpIib2HopSetIpAddr is an
          address of NHDP." an interface of a symmetric
          2-hop neighbor which has a symmetric
          link (using any MANET interface) to
          the indicated symmetric 1-hop neighbor."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIib2HopSetEntry 2 }

   nhdpIib2HopSet1HopIfIndex  OBJECT-TYPE
      SYNTAX      NeighborIfIndex
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpIib2HopSet1HopIfIndex
         "The nhdpIib2HopSet1HopIfIndex is
          NeighborIfIndex of the one hop
          neighbor which communicated the ipAddress
          of the 2-hop 2 hop neighbor in this row entry."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIib2HopSetEntry 3 }

   nhdpIib2HopSetN2Time  OBJECT-TYPE
      SYNTAX      TimeStamp      TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpIib2HopSetN2Time
         "The nhdpIib2HopSetN2Time specifies
          when this column entry expires and
          MUST be removed." removed.  This is measured in
          hundredths of a second since the
          NHDP process last initialized."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIib2HopSetEntry 4 }

   --
   -- Neighbor Information Base (NIB)
   --
   -- Each router maintains a Neighbor Information Base
   -- that records information about addresses of
   -- current and recently symmetric 1-hop neighbors.
   --
   -- All addresses MUST have an associated prefix
   -- length.  Prefix lengths are indicated in HELLO
   -- messages as specified in [1]; if an address
   -- has no specified prefix length, then its prefix
   -- length is equal to the address length.  Two
   -- addresses are considered equal if and only
   -- if their associated prefix lengths are also equal.

   --     NIB Neighbor Set
   --         Entry (foreach 1-H Neighbor):
   --              (AllIfAddrListOfIhNeighbor,
   --               SymmetricIndicator)
   --     The NIB Neighbor Set Table is small because
   --     most of the corresponding information is found
   --     in the nhdpDiscoveredIfTable above.
   --
   nhdpNibNeighborSetTable OBJECT-TYPE
      SYNTAX       SEQUENCE OF NhdpNibNeighborSetEntry
      MAX-ACCESS   not-accessible
      STATUS       current
      DESCRIPTION
          "A router's Neighbor Set records all network
           addresses of each 1-hop neighbor."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpStateObjGrp 5 6 }

   nhdpNibNeighborSetEntry  OBJECT-TYPE
      SYNTAX      NhdpNibNeighborSetEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "A router's Neighbor Set consists
           of Neighbor Tuples, each representing
           a single 1-hop neighbor:

           (N_neighbor_addr_list,
            N_symmetric)"
      REFERENCE
         "This NHDP-MIB draft." document."
      INDEX { nhdpNibNeighborSetRouterId nhdpDiscIfSetRouterId }
   ::= { nhdpNibNeighborSetTable 1 }

   NhdpNibNeighborSetEntry ::=
      SEQUENCE {
          nhdpNibNeighborSetRouterId
            NeighborRouterId,
          nhdpNibNeighborSetNSymmetric
            TruthValue
        }

   nhdpNibNeighborSetRouterId  OBJECT-TYPE
      SYNTAX      NeighborRouterId
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "nhdpNibNeighborSetRouterId is
          the NeighborRouterId of a one hop
          neighbor to this router.  It must also
          exist in nhdpDiscIfSetTable,
          allowing the manager to determine
          the set of IP addresses associated
          with NeighborRouterId in this row."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpNibNeighborSetEntry 1 }

   nhdpNibNeighborSetNSymmetric  OBJECT-TYPE
      SYNTAX      TruthValue
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpNibNeighborNSymmetric corresponds
         to N_symmetric of NHDP."
         "The nhdpNibNeighborNSymmetric is
          a Boolean flag, describing if this
          is a symmetric 1-hop neighbor."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpNibNeighborSetEntry 2 1 }

  --     Lost Neighbor Set
  --         Entry ( foreach IF foreach 1-H Neighbor): (IfAddr,
  --                                                    ExpireTime)
  --
   nhdpNibLostNeighborSetTable OBJECT-TYPE
      SYNTAX       SEQUENCE OF NhdpNibLostNeighborSetEntry
      MAX-ACCESS   not-accessible
      STATUS       current
      DESCRIPTION
          "A router's Lost Neighbor Set records network
           addresses of routers which recently were
           symmetric 1-hop neighbors, but which are now
           advertised as lost."
      REFERENCE
         "The NHDP draft."

   ::= { nhdpStateObjGrp 6 7 }

   nhdpNibLostNeighborSetEntry  OBJECT-TYPE
      SYNTAX      NhdpNibLostNeighborSetEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "A router's Lost Neighbor Set consists of
          Lost Neighbor Tuples, each representing a
          single such network address:

          (NL_neighbor_addr, NL_time)"
      REFERENCE
         "This NHDP-MIB draft."
      INDEX { nhdpNibLostNeighborSetRouterId nhdpDiscIfSetRouterId }
   ::= { nhdpNibLostNeighborSetTable 1 }

   NhdpNibLostNeighborSetEntry ::=
      SEQUENCE {
          nhdpNibLostNeighborSetRouterId
            NeighborRouterId,
          nhdpNibLostNeighborSetNLTime
            TimeStamp
         }

   nhdpNibLostNeighborSetRouterId  OBJECT-TYPE
      SYNTAX      NeighborRouterId
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "nhdpNibLostNeighborSetRouterId is
          the NeighborRouterId of a one hop
          neighbor to this router which was
          recently lost.  It must also
          exist in nhdpDiscIfSetTable,
          allowing the manager to determine
          the set of IP addresses associated
          with NeighborRouterId in this row."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpNibLostNeighborSetEntry 1
            TimeTicks
        }

   nhdpNibLostNeighborSetNLTime  OBJECT-TYPE
      SYNTAX      TimeStamp      TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "nhdpNibLostNeighborSetNLTime
         "The nhdpNibLostNeighborSetNLTime
          specifies when this Tuple expires
          and MUST be removed." removed.  This is measured in
          hundredths of a second since the last
          time the NHDP processed was
          initialized."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpNibLostNeighborSetEntry 2 1 }

--
-- nhdpPerformanceObjGrp
--

-- Contains objects which help to characterize the performance of
-- the NHDP process, typically counters.
--
nhdpPerformanceObjGrp OBJECT IDENTIFIER ::= { nhdpObjects 3 }
  --
  -- Objects per local interface
  --
  nhdpInterfacePerfTable  OBJECT-TYPE
      SYNTAX      SEQUENCE OF NhdpInterfacePerfEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "This table summarizes performance objects that are
          measured per local NHDP interface."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpPerformanceObjGrp 1 }

   nhdpInterfacePerfEntry OBJECT-TYPE
      SYNTAX      NhdpInterfacePerfEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "A single entry contains performance counters for
          a local NHDP interface."
      INDEX { nhdpIfIndex }
   ::= { nhdpInterfacePerfTable 1 }

   NhdpInterfacePerfEntry ::=
      SEQUENCE {
         nhdpIfPerfIndex
            InterfaceIndexOrZero,
         nhdpIfHelloMessageXmits
            Counter32,
         nhdpIfHelloMessageRecvd
            Counter32,
         nhdpIfHelloMessageXmitAccumulatedSize
            Counter32,
         nhdpIfHelloMessageRecvdAccumulatedSize
            Counter32,
         nhdpIfHelloMessageTriggeredXmits
            Counter32,
         nhdpIfHelloMessagePeriodicXmits
            Counter32,
         nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount
            Counter32,
         nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount
            Counter32,
         nhdpIfHelloMessageXmitAccumulatedLostNeighborCount
            Counter32
         }

   nhdpIfPerfIndex  OBJECT-TYPE
      SYNTAX      InterfaceIndexOrZero
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "The ID of an interface.  Used for cross
          indexing into other NHDP tables and other
          MIBs."
   ::= { nhdpInterfacePerfEntry 1 }

   nhdpIfHelloMessageXmits  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented each time a HELLO
         message has been transmitted on that interface."
   ::= { nhdpInterfacePerfEntry 2 1 }

   nhdpIfHelloMessageRecvd  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented each time a
         HELLO message has been received on that interface."
   ::= { nhdpInterfacePerfEntry 3 2 }

   nhdpIfHelloMessageXmitAccumulatedSize  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented by the number of octets in
         a HELLO message each time a
         HELLO message has been sent."
   ::= { nhdpInterfacePerfEntry 4 3 }

   nhdpIfHelloMessageRecvdAccumulatedSize  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented by the number of octets in
         a HELLO message each time a
         HELLO message has been received."
   ::= { nhdpInterfacePerfEntry 5 4 }

   nhdpIfHelloMessageTriggeredXmits  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented each time a triggered
         HELLO message has been sent."
   ::= { nhdpInterfacePerfEntry 6 5 }

   nhdpIfHelloMessagePeriodicXmits  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented each time a periodic
         HELLO message has been sent."
   ::= { nhdpInterfacePerfEntry 7 6 }

   nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented by the number of advertised
         symmetric neighbors in a HELLO each time a HELLO
         message has been sent."
   ::= { nhdpInterfacePerfEntry 8 7 }

   nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented by the number of advertised
         heard neighbors in a HELLO each time a HELLO
         message has been sent."
   ::= { nhdpInterfacePerfEntry 9 8 }

   nhdpIfHelloMessageXmitAccumulatedLostNeighborCount  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "A counter is incremented by the number of advertised
         lost neighbors in a HELLO each time a HELLO
         message has been sent."
   ::= { nhdpInterfacePerfEntry 10 9 }

  --
  -- Objects per discovered neighbor interface
  --
  nhdpDiscIfSetPerfTable OBJECT-TYPE
       SYNTAX       SEQUENCE OF NhdpDiscIfSetPerfEntry
       MAX-ACCESS   not-accessible
       STATUS       current
       DESCRIPTION
          "A router's set of performance properties for
          each discovered interface of a neighbor."

       REFERENCE
          "The NHDP draft."
   ::= { nhdpPerformanceObjGrp 2 }

   nhdpDiscIfSetPerfEntry  OBJECT-TYPE
       SYNTAX      NhdpDiscIfSetPerfEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "There is an entry for each discovered
          interface of a neighbor."
       REFERENCE
          "This NHDP-MIB draft."
       INDEX { nhdpDiscIfSetPerfIndex nhdpDiscIfSetIndex }
   ::= { nhdpDiscIfSetPerfTable 1 }

    NhdpDiscIfSetPerfEntry ::=
       SEQUENCE {
          nhdpDiscIfSetPerfIndex
            NeighborIfIndex,
          nhdpDiscIfRecvdPackets
            Counter32,
          nhdpDiscIfExpectedPackets
            Counter32
         }

   nhdpDiscIfSetPerfIndex  OBJECT-TYPE
      SYNTAX      NeighborIfIndex
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "The NHDP interface ID (locally created)
          of a neigboring router.  Used for cross
          indexing into other NHDP tables and other
          MIBs."
      REFERENCE
         "This NHDP-MIB draft."
   ::= { nhdpDiscIfSetPerfEntry 1 }

   nhdpDiscIfRecvdPackets  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This counter increments each
          time this router device receives a packet from that interface
          of the neighbor."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpDiscIfSetPerfEntry 2 1 }

   nhdpDiscIfExpectedPackets  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This counter increments by the number
          of missed packets from this neighbor based
          on the packet sequence number each time this
          router
          device receives a packet from that interface
          of the neighbor."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpDiscIfSetPerfEntry 3 2 }

   --
   -- Objects concerning the neighbor set
   --
   nhdpNibNeighborSetChanges  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This counter increments each time the Neighbor Set changes.
          A change occurs whenever a new Neighbor Tuple has been
          added, a Neighbor Tuple has been removed or any entry of
          a Neighbor Tuple has been modified."
   ::= { nhdpPerformanceObjGrp 3 }

   --
   -- Objects per discovered neighbor
   --
   nhdpDiscNeighborSetPerfTable OBJECT-TYPE
      SYNTAX       SEQUENCE OF NhdpDiscNeighborSetPerfEntry
       MAX-ACCESS   not-accessible
       STATUS       current
       DESCRIPTION
          "A router's set of discovered neighbors and
           their properties."
       REFERENCE
          "The NHDP draft."
   ::= { nhdpPerformanceObjGrp 4 }

   nhdpDiscNeighborSetPerfEntry  OBJECT-TYPE
       SYNTAX      NhdpDiscNeighborSetPerfEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "The entries include the nhdpDiscRouterId of
           the discovered router, as well as performance
           objects related to changes of the Neighbor
           Set."
       REFERENCE
          "This NHDP-MIB draft."
       INDEX { nhdpDiscNeighborSetRouterId nhdpDiscIfSetRouterId }
   ::= { nhdpDiscNeighborSetPerfTable 1 }
    NhdpDiscNeighborSetPerfEntry ::=
       SEQUENCE {
          nhdpDiscNeighborSetRouterId
            NeighborRouterId,
          nhdpDiscNeighborNibNeighborSetChanges
            Counter32,
          nhdpDiscNeighborNibNeighborSetUpTime
            Unsigned32,
            TimeTicks,
          nhdpDiscNeighborNibNeighborSetReachableLinkChanges
            Counter32
         }

   nhdpDiscNeighborSetRouterId  OBJECT-TYPE
      SYNTAX      NeighborRouterId
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "The NHDP router ID (locally created)
          of a neigboring router.  Used for cross
          indexing into other NHDP tables and other
          MIBs."
      REFERENCE
         "This NHDP-MIB draft."
   ::= { nhdpDiscNeighborSetPerfEntry 1 }

   nhdpDiscNeighborNibNeighborSetChanges  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This counter increments each time the neighbor becomes
          onlink or offlink.  A neighbor is said to become
          'onlink' if a new nhdpNibNeighborSetEntry Neighbor Tuple is created
          for a particular nhdpNibNeighborSetRouterId. that
          corresponds to the given neighbor.  It becomes 'offlink'
          if the entry for that neighbor such a tuple has been deleted."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpDiscNeighborSetPerfEntry 2 1 }

   nhdpDiscNeighborNibNeighborSetUpTime  OBJECT-TYPE
      SYNTAX      Unsigned32      TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This object returns the time in milliseconds hundredths of a second since
         the neighbor becomes onlink or offlink. 'onlink'.  A neighbor is
         said to become 'onlink' if a new nhdpNibNeighborSetEntry Neighbor Tuple is created for a particular nhdpNibNeighborSetRouterId. that
         corresponds to the given neighbor.  It becomes 'offlink' if the entry for that neighbor
         such a tuple has been deleted.

         Positive values indicate that the neighbor is currently
         'onlink' and indicates the duration of the current 'onlink'
         period.  Negative values indicate that the neighbor is
         currently 'offlink' and the magnitude indicates the
         duration of the current 'offlink' period." deleted."
      REFERENCE
         "This NHDP-MIB draft." document."
   ::= { nhdpDiscNeighborSetPerfEntry 3 2 }

   nhdpDiscNeighborNibNeighborSetReachableLinkChanges  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This counter increments each
         time the neighbor changes the interface over which it is
         reachable.  That means that the corresponding Link Tuple of the
         given link moves from the Link Set of one interface to another
         interface."

      REFERENCE
         "The NHDP draft."
   ::= { nhdpDiscNeighborSetPerfEntry 4 3 }

   --
   -- Objects per discovered 2-hop neighbor
   --
   nhdpIib2HopSetPerfTable OBJECT-TYPE
      SYNTAX       SEQUENCE OF NhdpIib2HopSetPerfEntry
      MAX-ACCESS   not-accessible
      STATUS       current
      DESCRIPTION
         "This table contains performance objects per
          discovered 2-hop neighbor."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpPerformanceObjGrp 5 }

   nhdpIib2HopSetPerfEntry  OBJECT-TYPE
      SYNTAX      NhdpIib2HopSetPerfEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
        "The entries contain performance objects per
          discovered 2-hop neighbor."
      REFERENCE
        "This NHDP-MIB draft."
      INDEX { nhdpIib2HopSetIpAddress nhdpDiscIfSetRouterId }
   ::= { nhdpIib2HopSetPerfTable 1 }

   NhdpIib2HopSetPerfEntry ::=
      SEQUENCE {
          nhdpIib2HopSetPerfIpAddress
            InetAddress,
          nhdpIib2HopSetPerfChanges
            Counter32,
          nhdpIib2HopSetPerfUpTime
            Unsigned32
         }

   nhdpIib2HopSetPerfIpAddress  OBJECT-TYPE
      SYNTAX      InetAddress
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "The nhdpIib2HopSetIpAddr is an
          address of an interface of a symmetric
          2-hop neighbor which has a symmetric
          link (using any MANET interface) to
          the indicated symmetric 1-hop neighbor."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIib2HopSetPerfEntry 1
            TimeTicks
        }

   nhdpIib2HopSetPerfChanges  OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This counter increments each
          time this 2-hop neighbor changes its
          N2_neighbor_iface_addr_list in the
          nhdpIib2HopSetTable."
      REFERENCE
         "The NHDP draft."
   ::= { nhdpIib2HopSetPerfEntry 2 1 }

   nhdpIib2HopSetPerfUpTime  OBJECT-TYPE
      SYNTAX      Unsigned32      TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This object returns the time in milliseconds since hundredths of
          a second when the 2-Hop Tuple
          corresponding to the given 2-hop
          neighbor IP address exists was registered in the
          nhdpIib2HopSetTable."
      REFERENCE
         "This NHDP-MIB draft."
   ::= { nhdpIib2HopSetPerfEntry 3 2 }

--
-- nhdpNotifications
--

nhdpNotificationsControl OBJECT IDENTIFIER ::= { nhdpNotifications 1 }
nhdpNotificationsObjects OBJECT IDENTIFIER ::= { nhdpNotifications 2 }
nhdpNotificationsStates OBJECT IDENTIFIER ::= { nhdpNotifications 3 }

   -- nhdpNotificationsControl
   nhdpSetNotification OBJECT-TYPE
      SYNTAX       OCTET STRING (SIZE(4))
      MAX-ACCESS   read-write
      STATUS       current
      DESCRIPTION
         "A 4-octet string serving as a bit map for
          the notification events defined by the NHDP
          notifications. This object is used to enable
             and disable specific NHDP notifications where
          a 1 in the bit field represents enabled. The
          right-most bit (leastsignificant) (least significant) represents
          notification 0.

          This object is persistent and when written
          the entity SHOULD save the change to
          non-volatile storage.
             " storage."
   ::= { nhdpNotificationsControl 1 }

   nhdpPacketSrc
   nhdpMessageSrcType OBJECT-TYPE
      SYNTAX       InetAddressType
      MAX-ACCESS   read-only
      STATUS       current
      DESCRIPTION
         "The IP address type of the
          address of an inbound message that
          cannot be identified by a neighbor instance."
   ::= { nhdpNotificationsControl 2 }

   nhdpMessageSrc OBJECT-TYPE
      SYNTAX       InetAddress
      MAX-ACCESS   read-only
      STATUS       current
      DESCRIPTION
         "The IP address of an inbound packet message that
          cannot be identified by a neighbor instance.  When
          the last value of a notification using this object is
          needed, but no notifications of that type have been sent,
          this value pertaining to this object should
          be returned as 0.0.0.0 or :: respectively."
   ::= { nhdpNotificationsControl 2 3 }

   -- nhdpNotificationsObjects

   nhdpNbrStateChange NOTIFICATION-TYPE
      OBJECTS { nhdpDiscIfSetRouterId, -- The originator of
                                           --     the notification.
                nhdpNbrState           -- The new state
              }
      STATUS       current
      DESCRIPTION
             "nhdpNbrStateChange is a
         "An nhdpNbrStateChange notification sent when signifies that
          there has been a
             significant number of neighbors change their status
             (i.e. down, asymmetric, or symmetric) in a short
             time. The network administrator should select
             appropriate values for 'significant number the state of
             neighbors' and 'short time'." a
          NHDP neighbor."
   ::= { nhdpNotificationsObjects 1 }

   nhdp2hopNbrStateChange NOTIFICATION-TYPE
      OBJECTS { nhdpIib2HopSetIpAddress, nhdpDiscIfSetRouterId, -- The originator
                                             -- of the notification
                nhdp2hopNbrState       -- The new state
              }
      STATUS       current
      DESCRIPTION
             "nhdp2hopNbrStateChange is a
         "An nhdp2hopNbrStateChange notification sent
             when signifies that
          there has been a significant number of 2-hop neighbors change their status (i.e. up or down) in the state of a short
             time. The network administrator 2-hop
          neighbor.  This notification should select
             appropriate values for 'significant number of
             neighbors' and 'short time'." be
          generated when the 2-hop neighbor state goes
          down or up."

      ::= { nhdpNotificationsObjects 2 }

   nhdpIfRxBadPacket

   nhdpIfRxBadMessage NOTIFICATION-TYPE
      OBJECTS { nhdpDiscIfSetRouterId, -- The originator of
                                           -- the notification
                nhdpDiscIfSetIndex,    -- The interface on which the
                nhdpMessageSrcType,    -- packet has been received
             nhdpPacketSrc The source IP addrType
                nhdpMessageSrc         -- The source IP address of the packet
              }
      STATUS       current
          DESCRIPTION
             "nhdpIfRxBadPacket is a
      DESCRIPTION
         "An nhdpIfRxBadMessage notification sent when signifies that a
             significant number of incoming packets have not
          HELLO message has been succesfully parsed in a short time. The
             etwork administrator should select appropriate
             values for 'significant number of neighbors'
             and 'short time'." received on an
          interface that cannot be parsed."
   ::= { nhdpNotificationsObjects 3 }

   nhdpIfStateChange NOTIFICATION-TYPE
      OBJECTS { nhdpIfIndex, -- The local interface
                nhdpIfState  -- The new state
              }
      STATUS       current
      DESCRIPTION
             "nhdpIfStateChange is a
         "An nhdpIfStateChange notification sent when signifies that there
          has been a change in the status state of an NHDP
          interface.  This notification should be generated
          when the interface of this router has
             changed (i.e. an IP address has been added goes up or
             removed to the interface, down, or when
          the list of addresses of that interface has
             changed its status from up to down or vice versa)."
          changes."
   ::= { nhdpNotificationsObjects 4 }

   -- nhdpNotificationStates
   nhdpNbrState OBJECT-TYPE
      SYNTAX       INTEGER {
                       down (0),
                       asymmetric (1),
                       symmetric(2)
                   }
      MAX-ACCESS   read-only
      STATUS       current
      DESCRIPTION
         "NHDP neighbor states."
      DEFVAL { down }
   ::= { nhdpNotificationsStates 1 }

   nhdp2hopNbrState OBJECT-TYPE
      SYNTAX       INTEGER {
                       down (0),
                       up (1)
                   }
      MAX-ACCESS   read-only
      STATUS       current
      DESCRIPTION
         "NHDP 2hop neighbor states."
      DEFVAL { down }
   ::= { nhdpNotificationsStates 2 }

   nhdpIfState OBJECT-TYPE
      SYNTAX       INTEGER {
                       down (0),
                       up (1),
                       addresschange(2) -- If a new address has been
                                         -- added or an address has
                                         -- been removed
                    }
      MAX-ACCESS   read-only
      STATUS       current
      DESCRIPTION
         "NHDP interface states."
      DEFVAL { down }
   ::= { nhdpNotificationsStates 3 }

--
-- nhdpConformance information
--

nhdpCompliances       OBJECT IDENTIFIER ::= { nhdpConformance 1 }
nhdpMIBGroups         OBJECT IDENTIFIER ::= { nhdpConformance 2 }

-- Compliance Statements
nhdpBasicCompliance MODULE-COMPLIANCE
   STATUS current
   DESCRIPTION
      "The basic implementation requirements for
       managed network entities that implement
       NHDP."
   MODULE -- this module
   MANDATORY-GROUPS { nhdpConfigurationGroup }
::= { nhdpCompliances 1 }
nhdpFullCompliance MODULE-COMPLIANCE
   STATUS current
   DESCRIPTION
      "The full implementation requirements for
       managed network entities that implement
       NHDP."
   MODULE -- this module
   MANDATORY-GROUPS { nhdpConfigurationGroup,
                      nhdpStateGroup,
                     nhdpNotificationGroup,
                     nhdpPerformanceGroup
                      nhdpPerformanceGroup,
                      nhdpNotificationObjectGroup,
                      nhdpNotificationGroup }
::= { nhdpCompliances 2 }

--
-- Units of Conformance
--
nhdpConfigurationGroup OBJECT-GROUP
   OBJECTS {
              nhdpIfIndex,
              nhdpIfStatus,
              nhdpHelloInterval,
              nhdpHelloMinInterval,
              nhdpRefreshInterval,
              nhdpLHoldTime,
              nhdpHHoldTime,
              nhdpHystAcceptQuality,
              nhdpHystRejectQuality,
              nhdpInitialQuality,
              nhdpInitialPending,
              nhdpHpMaxJitter,
              nhdpHtMaxJitter,
              nhdpNHoldTime,
              nhdpIHoldTime,
              nhdpIfRowStatus
           }
   STATUS  current
   DESCRIPTION
      "Set of NHDP configuration objects implemented
       in this module."
::= { nhdpMIBGroups 2 }

nhdpStateGroup OBJECT-GROUP
   OBJECTS {
              nhdpUpTime,
              nhdpDiscIfSetRouterId,
              nhdpDiscIfSetIndex,
              nhdpDiscIfSetIpAddrType,
              nhdpDiscIfSetIpAddrPrefixLen,
              nhdpLibRemovedIfAddrSetIpAddrType,
              nhdpLibRemovedIfAddrSetIpAddrPrefixLen,
              nhdpLibRemovedIfAddrSetIfIndex,
              nhdpLibRemovedIfAddrSetIrTime,
              nhdpIibLinkSetIfIndex,
              nhdpIibLinkSetLHeardTime,
              nhdpIibLinkSetLSymTime,
              nhdpIibLinkSetLQuality,
              nhdpIibLinkSetLPending,
              nhdpIibLinkSetLLost,
              nhdpIibLinkSetLTime,
              nhdpIib2HopSetIpAddressType,
              nhdpIib2HopSet1HopIfIndex,
              nhdpIib2HopSetN2Time,
              nhdpNibNeighborSetNSymmetric,
              nhdpNibLostNeighborSetNLTime
           }
    STATUS  current
    DESCRIPTION
       "Set of NHDP state objects implemented
         in this module."
::= { nhdpMIBGroups 3 }

nhdpPerformanceGroup OBJECT-GROUP
   OBJECTS {
              nhdpIfHelloMessageXmits,
              nhdpIfHelloMessageRecvd,
              nhdpIfHelloMessageXmitAccumulatedSize,
              nhdpIfHelloMessageRecvdAccumulatedSize,
              nhdpIfHelloMessageTriggeredXmits,
              nhdpIfHelloMessagePeriodicXmits,
              nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount,
              nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount,
              nhdpIfHelloMessageXmitAccumulatedLostNeighborCount,
              nhdpDiscIfRecvdPackets,
              nhdpDiscIfExpectedPackets,
              nhdpNibNeighborSetChanges,
              nhdpDiscNeighborNibNeighborSetChanges,
              nhdpDiscNeighborNibNeighborSetUpTime,
              nhdpDiscNeighborNibNeighborSetReachableLinkChanges,
              nhdpIib2HopSetPerfChanges,
              nhdpIib2HopSetPerfUpTime
          }
    STATUS  current
    DESCRIPTION
       "Set of NHDP performance objects implemented
         in this module."
::= { nhdpMIBGroups 4 }

nhdpNotificationObjectGroup OBJECT-GROUP
   OBJECTS {
             nhdpSetNotification,
             nhdpMessageSrcType,
             nhdpMessageSrc,
             nhdpIfState,
             nhdpNbrState,
             nhdp2hopNbrState
           }
   STATUS  current
   DESCRIPTION
      "Set of NHDP notification objects implemented
       in this module."
::= { nhdpMIBGroups 5 }

nhdpNotificationGroup NOTIFICATION-GROUP
   NOTIFICATIONS {
             nhdpNbrStateChange,
             nhdp2hopNbrStateChange,
             nhdpIfRxBadPacket,
             nhdpIfRxBadMessage,
             nhdpIfStateChange
           }
   STATUS  current
   DESCRIPTION
      "Set of NHDP notification objects notifications implemented
       in this module."
::= { nhdpMIBGroups 5 6 }

END

8.

5.7.  Security Considerations

   This MIB defines objects for the configuration, monitoring and
   notification of the Neighborhood Discovery Protocol (NHDP) [NHDP].
   NHDP allows routers to acquire topological information up to two hops
   away by virtue of exchanging HELLO messages.  The information
   acquired by NHDP may be is used by routing other protocols, such as OLSRv2 [OLSRv2]
   and SMF [SMF], and possibly other protocols.  The neighborhood
   information, exchanged between routers using NHDP, serves these
   routing protocols as a baseline for calculating paths to all
   destinations in the MANET, relay set selection for network-wide
   transmissions etc.

   There are a number of management objects defined in this MIB module
   with a MAX-ACCESS clause of read-write and/or read-create.  Such
   objects may be considered sensitive or vulnerable in some network
   environments.  The support for SET operations in a non-secure
   environment without proper protection can have a negative effect on
   network operations.  These are the tables and objects and their
   sensitivity/vulnerability:

   o  Specifically sensitive objects -

   o  nhdpIfStatus - this writable object turns on or off the NHDP
      process for the specified interface.  If disabled, higher level
      protocol functions, e.g., routing, would fail causing network-wide
      disruptions.

   o  nhdpHelloInterval, nhdpHelloMinInterval, and nhdpRefreshInterval -
      these writable objects control the rate at which HELLO messages
      are sent on a wireless interface.  If set at too high a rate, this
      could represent a form of DOS attack by overloading interface
      resources.

   o  nhdpHystAcceptQuality, nhdpHystRejectQuality, nhdpInitialQuality,
      nhdpInitialPending - these writable objects affect the perceived
      quality of the HNDP NHDP links and hence the overall stability of the
      network.  If improperly set, these settings could result in
      network-wide disruptions.

   o  nhdpInterfaceTable - this table contains writable objects that
      affect the overall performance and stability of the NHDP process.
      Failure of the NHDP process would result in network-wide failure.
      Particularly sensitive objects from this table are discussed in
      the previous list items.  This is the only table in the NHDP-MIB
      with writable objects.

   Some of the readable objects in this MIB module (i.e., objects with a
   MAX-ACCESS other than not-accessible) may be considered sensitive or
   vulnerable in some network environments.  It is thus important to
   control even GET and/or NOTIFY access to these objects and possibly
   to even encrypt the values of these objects when sending them over
   the network via SNMP.  These are the tables and objects and their
   sensitivity/vulnerability:

   o  nhdpDiscIfSetTable - The contains information on discovered
      neighbors,specifically
      neighbors, specifically their IP address in the
      nhdpDiscIfSetIpAddr object.  This information provides an
      adversary broad information on the members of the MANET, located
      within this single table.  This information can be use to expedite
      attacks on the other members of the MANET without having to go
      through a laborious discovery process on their own.  This object
      is the index into the table, and has a MAX-ACCESS of 'not-accessible'.  However, 'not-
      accessible'.  However this information can be exposed using SNMP
      operations.

   MANET technology is often deployed to support communications of
   emergency services or military tactical applications.  In these
   applications, it is imperative to maintain the proper operation of
   the communications network and to protect sensitive information
   related to its operation.  Therefore, when implementing these
   capabilities, the full use of SNMPv3 cryptographic mechanisms for
   authentication and privacy is RECOMMENDED.

   SNMP versions prior to SNMPv3 did not include adequate security.
   Even if the network itself is secure (for example by using IPSec),
   there is no control as to who on the secure network is allowed to
   access and GET/SET (read/change/create/delete) the objects in this
   MIB module.

   It is RECOMMENDED that implementers consider the security features as
   provided by the SNMPv3 framework (see [RFC3410], section 8),
   including full support for the SNMPv3 cryptographic mechanisms (for
   authentication and privacy).

   Further, deployment of SNMP versions prior to SNMPv3 is NOT
   RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to
   enable cryptographic security.  It is then a customer/operator
   responsibility to ensure that the SNMP entity giving access to an
   instance of this MIB module is properly configured to give access to
   the objects only to those principals (users) that have legitimate
   rights to indeed GET or SET (change/create/delete) them.

9.

5.8.  IANA Considerations

   This memo does not include any request

   Editor's Note (to be removed prior to publication): the IANA is
   requested to assign a value for "XXXX" under the 'mib-2' subtree and
   to record the assignment in the SMI Numbers registry.  When the
   assignment has been made, the RFC Editor is asked to replace "XXXX"
   (here and in the MIB module) with the assigned value and to remove
   this note.

   Note well: prior to IANA.

10. official assignment by the IANA, a draft document
   MUST use placeholders (such as "XXXX" above) rather than actual
   numbers.  See RFC4181 Section 4.5 for an example of how this is done
   in a draft MIB module.

5.9.  Contributors

   This MIB document uses the template authored by D. Harrington which
   is based on contributions from the MIB Doctors, especially Juergen
   Schoenwaelder, Dave Perkins, C.M.Heard and Randy Presuhn.

11.

6.  References

11.1.
6.1.  Normative References

   [RFC2863]  McCloghrie, K. and F. Kastenholz, "The Interfaces Group
              MIB", RFC 2863, June 2000.

   [RFC3418]  Presuhn, R., "Management Information Base (MIB) for the
              Simple Network Management Protocol (SNMP)", STD 62,
              RFC 3418, December 2002.

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2578]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Structure of Management Information
              Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.

   [RFC2579]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Textual Conventions for SMIv2",
              STD 58, RFC 2579, April 1999.

   [RFC2580]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Conformance Statements for SMIv2", STD 58, RFC 2580,
              April 1999.

   [NHDP]     Clausen, T., Dearlove, C., and J. Dean, "Mobile Ad Hoc
              Network (MANET) "The MANET
              Neighborhood Discovery Protocol (NHDP)",
              draft-ietf-manet-nhdp-12
              draft-ietf-manet-nhdp-11 (work in progress), March 2010. October 2009.

   [RFC4001]  Daniele, M., Haberman, B., Routhier, S., and J.
              Schoenwaelder, "Textual Conventions for Internet Network
              Addresses", RFC 4001, February 2005.

11.2.

6.2.  Informative References

   [REPORT]   Cole, R., Macker, J., and A. Morton, "Definition of
              Managed Objects for Performance Reporting",
              draft-ietf-manet-report-mib-00
              draft-cole-manet-report-mib-02 (work in progress), progress),
              March 2010.

   [RFC5148]  Clausen, T., Dearlove, C., and B. Adamson, "Jitter
              Considerations in Mobile Ad Hoc Networks (MANETs)",
              RFC 5148, February 2008.

   [OLSRv2]   Clausen, T., Dearlove, C., and P. Philippe, "The Optimized
              Link State Routing Protocol version 2", work in
              progress draft-ietf-manet-olsrv2-10.txt, September 2009.

   [SMF]      Macker, J., "Simplified Multicast Forwarding", work in
              progress draft-ietf-manet-smf-09.txt, July 2010.

   [RFC4750]  Joyal, D., Galecki, P., Giacalone, S., Coltun, R., and F.
              Baker, "OSPF Version 2 Management Information Base",
              RFC 4750, December 2006. 2009.

   [RFC3410]  Case, J., Mundy, R., Partain, D., and B. Stewart,
              "Introduction and Applicability Statements for Internet-
              Standard Management Framework", RFC 3410, December 2002.

   [RFC3781]  Strauss, F. and J. Schoenwaelder, "Next Generation
              Structure of Management Information (SMIng) Mappings  to
              the Simple Network Management Protocol (SNMP)", RFC 3781,
              May 2004.

Appendix A.  Change Log

   Here we list the changes made to the various drafts of this MIB.

   We list here the changes made on the draft-ietf-manet-nhdp-mib-04
   draft to generate the draft-ietf-manet-nhdp-mib-05 draft.

   1.  Cleaned up the time objects within the MIB using the TimeTicks
       Textual Convention.

   2.  Changed the definition of the
       'nhdpDiscNeighborNibNeighborSetUpTime' object to track only the
       entry uptime, since the time since 'down' referred to a removed
       tuple.

   We list here the changes made on the draft-ietf-manet-nhdp-mib-03
   draft to generate draft-ietf-manet-nhdp-mib-04. the draft-ietf-manet-nhdp-mib-04 draft.

   1.  Cleaned up and condensed text in the front material to this
       draft.  Specifically, shortened the Configuration and State Group
       sections, defering deferring to the MIB as definitive.  Left the
       Performance Group discussion primarily intact due to its
       discussion of base and derived performance objects and statistics
       and their value to management and operations of NHDP.

   2.  Added information identifying objects requiring non-volatile
       storage within the DESCRIPTION clause of the objects within the
       NHDP-MIB.

   3.  Updated to to NHDP draft version 12.

   4.  Changed type of several objects in the MIB (for timers, and
       floating point values).

   5.  Removed link-quality object for performance reasons.

   6.  Fixed many small editorial issues.

   7.  Removed references to SMF- and OLSRv2-MIB.

   We list here the changes made on the draft-ietf-manet-nhdp-mib-02
   draft to generate the draft-ietf-manet-nhdp-mib-03 draft.

   1.  Cleaned up text in the Performance Group section defining the
       base versus the derived (from the REPORT-MIB) objects.

   2.  Added the local nhdpIfIndex to the nhdpIibLinkSetTable.  A duplex
       of interface indecies indexes is required to define a wireless link.

   3.  Added text to the Security Considerations section.

   4.  Added notifications.

   We list here the changes made on the draft-ietf-manet-nhdp-mib-01
   draft to generate the draft-ietf-manet-nhdp-mib-02 draft.

   1.  Cleaned up several things (e.g. moved N_HOLD_TIME from interface
       parameter to router paramter) parameter)

   2.  Updated to NHDP draft version 11

   We list here the changes made on the draft-ietf-manet-nhdp-mib-00
   draft to generate the draft-ietf-manet-nhdp-mib-01 draft.

   1.  Made and extensive addition in the area of performance
       monitoring.  Added text in the front material, added a
       PerformanceGroup to the MIB and added the PerformanceGroup to the
       Conformance Sections.

   We list here the changes made on the draft-cole-manet-nhdp-mib-01
   draft to generate the draft-ietf-manet-nhdp-mib-00 draft.

   1.  Cleanup up numerous typos and add material to the Conformance
       section in order to pass the MIB checker, i.e., smilint.

   We list here the changes made on the draft-cole-manet-nhdp-mib-00
   draft to generate the draft-cole-manet-nhdp-mib-01 draft.

   1.  Defined the NeighborIfIndex and the NeighborRouterId textual
       conventions.  These identify a remote neighbor IfIndex and a
       remote neighbor router and are used as indexes into NHDP state
       tables.  These constructs were necessary in order to associate
       address lists with specific remote interfaces as required by the
       NHDP protocol specification.

   2.  Developed the nhdpInterfaceTable as part of the configuration
       group.

   3.  Developed the nhdpDiscIfSetTable as a means to associate address
       lists with remotely discovered neighbor interfaces.

   4.  Added tables defining the router's NHDP Local Information Base
       (LIB) as specified in the NHPD NHDP protocol specification.

   5.  Added tables defining the router's NHDP Interface information
       Base (IIB) as specified in the NHPD NHDP protocol specification.

   6.  Added tables defining the router's NHDP Neighbor Information Base
       (NIB) as specified in the NHPD NHDP protocol specification.

   7.  Aligned the NHDP-MIB and the OLSRv2-MIB configuration tables and
       indexing.

Appendix B.  Open Issues

   This section contains the set of open issues related to the
   development and design of the NHDP-MIB.  This section will not be
   present in the final version of the MIB and will be removed once all
   the open issues have been resolved.

   1.   Assure that once can set Float32 values to variables.  If so, is
        it possible to set upper and lower bounds (e.g. (0.0..1.0),
        similar to Unsigned32)?

   2.   Are DEFVALs required for NHDP parameters?  How to specify
        Float32 DEFVAL?

   3.   Check out the definitions of the Notification Group and their
        relationship within the subtree of the NHDP-MIB.  Should we
        specify thresholds for neighbor change Notifications?  How do we
        specify these?

   4.   Need to check out the structure of the Notification Group and
        also its location within the NHDP-MIB (should be the zeroth
        group).

   5.   How to handle dynamic parameters within NHDP?  Should we expose
        setting, min and max values?

   6.   Incorporate parameter relationship conditions into their
        DESCRIPTION clauses.

   7.   Also, specify specific SNMP response to the snmp set request,
        i.e., 'generic error', 'bad value', etc.

   8.   Clean up all of the 'Note:' statements within the body of the
        MIB.

   9.   Work on the relationship to other MIBs, IF-MIB, REPORT-MIB.

   10.  Cleanup all the [TODOs] from the MIB template.

Appendix C.

   ***************************************************************
   * Note to the RFC Editor (to be removed prior to publication) *
   *                                                             *
   * 1) The reference to RFCXXXX within the DESCRIPTION clauses  *
   * of the MIB module point to this draft and are to be         *
   * assigned by the RFC Editor.                                 *
   *                                                             *
   * 2) The reference to RFCXXX2 throughout this document point  *
   * to the current draft-ietf-manet-nhdp-mib-xx.txt.  This      *
   * need to be replaced with the XXX RFC number.                                 *
   *                                                             *
   ***************************************************************

Authors' Addresses

   Ulrich Herberg
   LIX, Ecole Polytechnique
   Palaiseau Cedex,   91128
   France

   EMail: ulrich@herberg.name
   URI:   http://www.herberg.name/

   Robert G. Cole
   US Army CERDEC
   328 Hopkins Road, Bldg 245
   Aberdeen Proving Ground, Maryland  21005
   USA

   Phone: +1 410 278 6779
   EMail: robert.g.cole@us.army.mil
   URI:   http://www.cs.jhu.edu/~rgcole/
   Ian D Chakeres
   CenGen
   9250 Bendix Road North
   Columbia, Maryland  560093
   USA

   EMail: ian.chakeres@gmail.com
   URI:   http://www.ianchak.com/