RFC 4781

Graceful Restart Mechanism for BGP with MPLS, January 2007

Canonical URL:
https://www.rfc-editor.org/rfc/rfc4781.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Authors:
Y. Rekhter
R. Aggarwal
Stream:
IETF
Source:
mpls (rtg)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC4781

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

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


Abstract

A mechanism for BGP that helps minimize the negative effects on routing caused by BGP restart has already been developed and is described in a separate document ("Graceful Restart Mechanism for BGP"). This document extends this mechanism to minimize the negative effects on MPLS forwarding caused by the Label Switching Router's (LSR's) control plane restart, and specifically by the restart of its BGP component when BGP is used to carry MPLS labels and the LSR is capable of preserving the MPLS forwarding state across the restart. The mechanism described in this document is agnostic with respect to the types of the addresses carried in the BGP Network Layer Reachability Information (NLRI) field. As such, it works in conjunction with any of the address families that could be carried in BGP (e.g., IPv4, IPv6, etc.). [STANDARDS-TRACK]


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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