RFC 9786

EVPN Port-Active Redundancy Mode, June 2025

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Status:
PROPOSED STANDARD
Authors:
P. Brissette
LA. Burdet, Ed.
B. Wen
E. Leyton
J. Rabadan
Stream:
IETF
Source:
bess (rtg)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9786

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Abstract

The Multi-Chassis Link Aggregation (MC-LAG) group technology enables establishing a logical link-aggregation connection with a redundant group of independent nodes. The objective of MC-LAG is to enhance both network availability and bandwidth utilization through various modes of traffic load balancing. RFC 7432 defines an EVPN-based MC-LAG with Single-Active and All-Active multihoming redundancy modes. This document builds on the existing redundancy mechanisms supported by EVPN and introduces a new active/standby redundancy mode, called 'Port-Active'.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.




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