Notification Message Support for BGP Graceful Restart
RFC 8538, “Notification Message Support for BGP Graceful Restart”, is a Proposed Standard document published in March 2019 by K. Patel, R. Fernando, J. Scudder, J. Haas. It updates RFC 4724. The canonical text is published by the RFC Editor.
Abstract
The BGP Graceful Restart mechanism defined in RFC 4724 limits the usage of BGP Graceful Restart to BGP messages other than BGP NOTIFICATION messages. This document updates RFC 4724 by defining an extension that permits the Graceful Restart procedures to be performed when the BGP speaker receives a BGP NOTIFICATION message or the Hold Time expires. This document also defines a new subcode for BGP Cease NOTIFICATION messages; this new subcode requests a full session restart instead of a Graceful Restart.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8538 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 8537 Updates to the Fast Reroute Procedures for Co-routed Associated Bidirectional Label Switched Paths
- RFC 8539 Softwire Provisioning Using DHCPv4 over DHCPv6
- RFC 8536 The Time Zone Information Format
- RFC 8540 Stream Control Transmission Protocol: Errata and Issues in RFC 4960
- RFC 8541 Impact of Shortest Path First Trigger and Delay Strategies on IGP Micro-loops
- RFC 8534 Explicit Tracking with Wildcard Routes in Multicast VPN
- RFC 8542 A YANG Data Model for Fabric Topology in Data-Center Networks
- RFC 8533 A YANG Data Model for Retrieval Methods for the Management of Operations, Administration, and Maintenance Protocols That Use Connectionless Communications