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Status:

PROPOSED STANDARD

Authors:

J. Rabadan, Ed.
S. Sathappan
K. Nagaraj
M. Miyake
T. Matsuda

Stream:

IETF

Source:

bess (rtg)

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DOI:  https://doi.org/10.17487/RFC9541

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Abstract

Provider Backbone Bridging (PBB) can be combined with EthernetVirtual Private Networks (EVPNs) to deploy Ethernet Local AreaNetwork (E-LAN) services in large Multiprotocol Label Switching(MPLS) networks. That combination is what we refer to as "PBB-EVPN."Single-Active multihoming and per Service Instance Identifier (I-SID)load-balancing can be provided to access devices and aggregationnetworks. In order to speed up the network convergence in case offailures on Single-Active multihomed Ethernet Segments (ESs),PBB-EVPN defines a flush mechanism for Customer MACs (C-MACs) called"C-MAC flush" that works for different Ethernet Segment Backbone MAC(B-MAC) address allocation models. This document complements thoseC-MAC flush procedures for cases in which no PBB-EVPN ESs are defined(i.e., the attachment circuit is associated with a zero EthernetSegment Identifier (ESI)) and the C-MAC flush requires I-SID-levelgranularity.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.