draft-ietf-ospf-ospfv3-segment-routing-extensions-22.txt   draft-ietf-ospf-ospfv3-segment-routing-extensions-23.txt 
Open Shortest Path First IGP P. Psenak, Ed. Open Shortest Path First IGP P. Psenak, Ed.
Internet-Draft Cisco Systems, Inc. Internet-Draft Cisco Systems, Inc.
Intended status: Standards Track S. Previdi, Ed. Intended status: Standards Track S. Previdi, Ed.
Expires: July 6, 2019 Individual Expires: July 13, 2019 Individual
January 2, 2019 January 9, 2019
OSPFv3 Extensions for Segment Routing OSPFv3 Extensions for Segment Routing
draft-ietf-ospf-ospfv3-segment-routing-extensions-22 draft-ietf-ospf-ospfv3-segment-routing-extensions-23
Abstract Abstract
Segment Routing (SR) allows a flexible definition of end-to-end paths Segment Routing (SR) allows a flexible definition of end-to-end paths
within IGP topologies by encoding paths as sequences of topological within IGP topologies by encoding paths as sequences of topological
sub-paths, called "segments". These segments are advertised by the sub-paths, called "segments". These segments are advertised by the
link-state routing protocols (IS-IS and OSPF). link-state routing protocols (IS-IS and OSPF).
This draft describes the OSPFv3 extensions required for Segment This draft describes the OSPFv3 extensions required for Segment
Routing with MPLS data plane. Routing with MPLS data plane.
skipping to change at page 1, line 45 skipping to change at page 1, line 45
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on July 6, 2019. This Internet-Draft will expire on July 13, 2019.
Copyright Notice Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of (https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
skipping to change at page 7, line 15 skipping to change at page 7, line 15
For the address family IPv4 unicast, the prefix itself is For the address family IPv4 unicast, the prefix itself is
encoded as a 32-bit value. The default route is represented by encoded as a 32-bit value. The default route is represented by
a prefix of length 0. a prefix of length 0.
For the address family IPv6 unicast, the prefix, encoded as an For the address family IPv6 unicast, the prefix, encoded as an
even multiple of 32-bit words, padded with zeroed bits as even multiple of 32-bit words, padded with zeroed bits as
necessary. This encoding consumes ((PrefixLength + 31) / 32) necessary. This encoding consumes ((PrefixLength + 31) / 32)
32-bit words. 32-bit words.
Prefix encoding for other address families is beyond the scope Prefix encoding for other address families is beyond the scope
of this specification. of this specification. Prefix encoding for other address
families can be defined in the future standard-track IETF
specifications.
The range represents the contiguous set of prefixes with the same The range represents the contiguous set of prefixes with the same
prefix length as specified by the Prefix Length field. The set prefix length as specified by the Prefix Length field. The set
starts with the prefix that is specified by the Address Prefix field. starts with the prefix that is specified by the Address Prefix field.
The number of prefixes in the range is equal to the Range size. The number of prefixes in the range is equal to the Range size.
If the OSPFv3 Extended Prefix Range TLVs advertising the exact same If the OSPFv3 Extended Prefix Range TLVs advertising the exact same
range appears in multiple LSAs of the same type, originated by the range appears in multiple LSAs of the same type, originated by the
same OSPFv3 router, the LSA with the numerically smallest Instance ID same OSPFv3 router, the LSA with the numerically smallest Instance ID
MUST be used and subsequent instances of the OSPFv3 Extended Prefix MUST be used and subsequent instances of the OSPFv3 Extended Prefix
 End of changes. 4 change blocks. 
5 lines changed or deleted 7 lines changed or added

This html diff was produced by rfcdiff 1.47. The latest version is available from http://tools.ietf.org/tools/rfcdiff/