draft-ietf-idr-bgp-ls-sr-epe-over-l2bundle
Segment Routing BGP Egress Peer Engineering over Layer 2 Bundle Members
There are deployments where the Layer 3 interface on which a BGP peer
session is established is a Layer 2 interface bundle. In order to
allow BGP-EPE to control traffic flows on individual member links of
the underlying Layer 2 bundle, BGP Peering SIDs need to be allocated
to individual bundle member links, and advertisement of such BGP
Peering SIDs in BGP-LS is required. This document describes how to
support Segment Routing BGP Egress Peer Engineering over Layer 2
bundle members. This document updates RFC9085 to allow the L2 Bundle
Member Attributes TLV to be added to the BGP-LS Attribute associated
with the Link NLRI of BGP peering link. This document updates
RFC9085 and RFC9086 to allow the PeerAdj SID TLV to be included as a
sub-TLV of the L2 Bundle Member Attributes TLV.