Hi BESS Working Group: We have published a new Internet-Draft titled "Extended IP mobility procedures for EVPN-IRB" to address control plane churn limitations observed in dense EVPN overlay scenarios.
- Link: https://datatracker.ietf.org/doc/draft-anarayanan-bess-evpn-extended-ip-mobility/ - Abstract: This document addresses control plane churn caused by coupling IP and MAC mobility sequence numbers in RFC 9721, proposing separated sequence number spaces to reduce BGP updates from O(N) to O(1) while maintaining compatibility and providing an upgrade path. The draft relaxes sequence number inheritance constraints to significantly cut down routing update overhead during migrations while preserving behavioral determinism and offering a smooth migration path from legacy RFC 7432 deployments, particularly when multiple IPs are associated with the same MAC address. We appreciate your review and thorough feedback. Best Anand Narayanan, Akhil Shasidhar, and Qing Yang
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