The IESG has received a request from the Inter-Domain Routing WG (idr) to consider the following document: - 'Support for Long-lived BGP Graceful Restart' <draft-ietf-idr-long-lived-gr-05.txt> as Proposed Standard
The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the [email protected] mailing lists by 2023-07-13. Exceptionally, comments may be sent to [email protected] instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract In this document, we introduce a new BGP capability termed "Long- lived Graceful Restart Capability" so that stale routes can be retained for a longer time upon session failure than is provided for by BGP Graceful Restart (RFC 4724). A well-known BGP community "LLGR_STALE" is introduced for marking stale routes retained for a longer time. A second well-known BGP community, "NO_LLGR", is introduced to mark routes for which these procedures should not be applied. We also specify that such long-lived stale routes be treated as the least-preferred, and their advertisements be limited to BGP speakers that have advertised the new capability. Use of this extension is not advisable in all cases, and we provide guidelines to help determine if it is. We update RFC 6368 by specifying that the LLGR_STALE community must be propagated into, or out of, the path attributes exchanged between PE and CE. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-idr-long-lived-gr/ No IPR declarations have been submitted directly on this I-D. _______________________________________________ IETF-Announce mailing list [email protected] https://www.ietf.org/mailman/listinfo/ietf-announce
