• Author : Matthew Carrington-Fair


Support BGP PIC edge for EVPN VXLAN routes for remote VTEP failures

Description Prior to 4.25.2F, support for BGP PIC was restricted to locally identifiable failures such as link failures. If a remote VTEP went down, this would require action by the IGP and BGP to recompute a new best path traffic destined to affected BGP prefixes originally reachable by the problematic VTEP. This feature introduces support for RFC8971 (BFD for VXLAN) for EVPN learned VTEPs to improve convergence times in these scenarios by tying the liveness detection provided by the BFD sessions into existing BGP PIC support for software fast-failover. Without this feature, until the underlay route providing reachability to the...
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Support for configuring color extended communities

Description EOS 4.23.1F introduces the ability to configure the color extended community in route-map set clauses and in an extcommunity-list for inbound and outbound policy application. As outlined in the IETF Segment Routing Policy Architecture draft, the color extended community is used for per-destination steering into Segment-Routing Traffic-Engineered (SR-TE) policies. If the next-hop and color of a BGP route match a particular policy (composed of an endpoint and color), any traffic bound to the destination can be steered according to the policy instead of forwarded via an IGP path or tunnel. Details on per-destination IP steering in EOS can be...
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