• Author : Akshay Kawale

 
 

RFC 5549: IPv4 unicast NLRI with IPv6 next-hop support

Description This feature provides support for advertising IPv4 unicast Network Layer Reachability Information (NLRI) with IPv6 next-hops over IPv6 peering sessions described as the Extended Next Hop Encoding capability in RFC5549. Extended Next Hop Encoding capability can be supported for IPv4 unicast, IPv4 Labeled Unicast, and IPv4 VPN address and sub-address families (1/1, 1/4, 1/128 respectively). The feature enables: Negotiating Extended Next Hop Encoding capability for IPv4 unicast NLRI advertisements over IPv6 BGP sessions. In multi-agent mode IPv4 iBGP sessions are also supported. Encoding of the next-hop in the UPDATE message that allows determination of the next-hop’s address family. This...
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