RFC 8687

OSPF Routing with Cross-Address Family Traffic Engineering Tunnels, November 2019

File formats:

icon for HTML icon for text file icon for v3pdf icon for XML
Status:
PROPOSED STANDARD
Updates:
RFC 5786
Authors:
A. Smirnov
A. Retana
M. Barnes
Stream:
IETF
Source:
lsr (rtg)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8687

Discuss this RFC: Send questions or comments to lsr@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

When using Traffic Engineering (TE) in a dual-stack IPv4/IPv6 network, the Multiprotocol Label Switching (MPLS) TE Label Switched Path (LSP) infrastructure may be duplicated, even if the destination IPv4 and IPv6 addresses belong to the same remote router. In order to achieve an integrated MPLS TE LSP infrastructure, OSPF routes must be computed over MPLS TE tunnels created using information propagated in another OSPF instance. This issue is solved by advertising cross-address family (X-AF) OSPF TE information.

This document describes an update to RFC 5786 that allows for the easy identification of a router's local X-AF IP addresses.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


Download PDF Reader