Hi BFDers, We met a multi-vendor interoperate issue recently, it's about whether an Echo reply is necessary.
In Section 6 of RFC5884, 2nd paragraph "... The egress LSR MAY respond with an LSP Ping Echo reply message that carries the local discriminator assigned by it for the BFD session." >From the above text, my understanding is that an Echo reply is optional, the >egress LSR can freely to return or not return an Echo reply, and the Ingress >LSR should not expect there MUST be an Echo reply, but if there is one, it >should handle it properly. Is my understanding correct? Thanks, Mach
