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Detnet Status Pages

Deterministic Networking (Active WG)
Rtg Area: Alvaro Retana, Alia Atlas, Deborah Brungard | 2015-Oct-05 —  

2016-03-21 charter

Deterministic Networking (detnet)


 Current Status: Active

     Lou Berger <lberger@labn.net>
     Patricia Thaler <pat.thaler@broadcom.com>

 Routing Area Directors:
     Alia Atlas <akatlas@gmail.com>
     Deborah Brungard <db3546@att.com>
     Alvaro Retana <aretana@cisco.com>

 Routing Area Advisor:
     Deborah Brungard <db3546@att.com>

     Jouni Korhonen <jouni.nospam@gmail.com>

 Mailing Lists:
     General Discussion: detnet@ietf.org
     To Subscribe:       https://www.ietf.org/mailman/listinfo/detnet
     Archive:            https://mailarchive.ietf.org/arch/browse/detnet/

Description of Working Group:

  The Deterministic Networking (DetNet) Working Group focuses on
  deterministic data paths that operate over Layer 2 bridged and Layer 3
  routed segments, where such paths can provide bounds on latency, loss,
  and packet delay variation (jitter), and high reliability. The Working
  Group addresses Layer 3 aspects in support of applications requiring
  deterministic networking. The Working Group collaborates with IEEE802.1
  Time Sensitive Networking (TSN), which is responsible for Layer 2
  operations, to define a common architecture for both Layer 2 and Layer
  3. Example applications for deterministic networks include professional
  and home audio/video, multimedia in transportation, engine control
  systems, and other general industrial and vehicular applications being
  considered by the IEEE 802.1 TSN Task Group.

  The Working Group will initially focus on solutions for networks that
  are under a single administrative control or within a closed group of
  administrative control; these include not only campus-wide networks but
  also can include private WANs. The DetNet WG will not spend energy on
  solutions for large groups of domains such as the Internet.

  The Working Group will specify an overall architecture that encompasses
  the data plane, OAM (Operations, Administration, and Maintenance), time
  synchronization, management, control, and security aspects which are
  required to enable a multi-hop path, and forwarding along the path, with
  the deterministic properties of controlled latency, low packet loss, low
  packet delay variation, and high reliability. The work applies to
  point-to-point (unicast) and point-to-multipoint (multicast) flows which
  can be characterized in a manner that allows the network to 1) reserve
  the appropriate resources for the flows in advance, and 2) release/reuse
  the resources when they are no longer required. The work covers the
  characterization of flows, the encapsulation of frames, the required
  forwarding behaviors, as well as the state that may need to be
  established in intermediate nodes. Candidate Layer 3 data plane
  technologies that may be used, without modification, include: IP and
  MPLS, and Layer 2 encapsulations that run over IP and/or MPLS, such
  as pseudowires and GRE.

  The working group will document which deployment environments and types
  of topologies are within (or outside) the scope of the DetNet
  architecture. This work focuses on the data plane aspects and is
  independent from any path setup protocol or mechanism. The data plane
  will be compatible with the work done in IEEE802.1 TSN.

  The Working Group's scope explicitly excludes modifications of transport
  protocols, OAM, Layer 3 forwarding, encapsulations, and control plane

  DetNet is chartered to work in the following areas:

      Overall architecture: This work encompasses the data plane, OAM,
      time synchronization, management, control, and security aspects.

      Data plane: This work will document how to use IP and/or MPLS to
      support a data plane method of flow identification and packet
      forwarding over Layer 3.

      Data flow information model: This work will identify the information
      needed for flow establishment and control and be used by
      reservation protocols and YANG data models. The work will be
      independent from the protocol(s) used to control the flows

      YANG models: This work will document device and link capabilities
      (feature support) and resources (e.g. buffers, bandwidth) for use in
      device configuration and status reporting. Such information may also
      be used when advertising the deterministic network elements to a
      control plane. Control plane related information will be
      independent from the protocol(s) which may be used to advertise
      this information (e.g. IS-IS or GMPLS extensions). Any new YANG
      models will be coordinated with the Working Groups that define
      any augmented base models.

      As needed, problem statement: This effort will establish the
      deployment environment and deterministic network requirements.

      As needed, vertical requirements: This effort will detail the
      requirements for deterministic networks in various industries, for
      example, professional audio, electrical utilities, building
      automation systems, wireless for industrial applications.

      To investigate whether existing data plane encryption mechanisms can
      be applied, possibly opportunistically, to improve security and

  The WG coordinates with other relevant IETF Working Groups, including
  CCAMP, PCE, PALS, TEAS, OSPF, IS-IS, TSVWG, and 6TisSCH. As the work
  progresses, requirements may be provided to the responsible Working
  Group, e.g. PCE, TEAS, and CCAMP, with DetNet acting as a focal point to
  maintain the consistency of the overall architecture. The WG will liaise
  with appropriate groups in IEEE and other Standards Development
  Organizations (SDOs).

  WG deliverables include:
      Overall architecture
      Data plane specification
      Data flow information model
      YANG models

  WG sustaining/informational documents may include:

      These documents may not necessarily be published, but may be
      maintained in a draft form or on a collaborative Working Group wiki
      to support the efforts of the Working Group and help new comers:

      Problem statement and (constrained) deployment environments
      User-driven use cases

Goals and Milestones:
  Dec 2015 - WG adoption of use cases
  Dec 2015 - WG adoption of problem statement (with supported deployments)
  Jan 2016 - WG adoption of architecture document
  Apr 2016 - WG adoption of data plane specification
  May 2016 - WG adoption of data flow information model
  Aug 2016 - WG adoption of YANG model
  Sep 2016 - Finalize use cases (informational)
  Sep 2016 - Finalize problem statement (informational)
  Nov 2016 - Submit architecture (Standards Track)
  Jan 2017 - Submit data plane specification (Standards Track)
  Feb 2017 - Submit data flow information model (informational)
  Apr 2017 - Submit YANG model (Standards Track)
  Apr 2017 - Re-charter or close

All charter page changes, including changes to draft-list, rfc-list and milestones:

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