Hi EVPN guru, It looks like RFC 7432 section 8.2.1 (Constructing Ethernet A-D per Ethernet Segment Route) has an error: "The Ethernet A-D route is not needed when the Segment Identifier is set to 0 (e.g., single-homed scenarios)."
Because without "per ES route" it would not be possible to signal "mass withdrawal" If CE-PE connection would fail That plainly promised for single-homed CEs in section 8.2: " If no other PE had advertised an Ethernet A-D route for the same segment, then the PE that received the withdrawal simply invalidates the MAC entries for that segment." Or implied in section 17.3: "The Ethernet A-D per ES routes should be used by an implementation to optimize the withdrawal of MAC/IP Advertisement routes." Have I missed something? Eduard _______________________________________________ BESS mailing list BESS@ietf.org https://www.ietf.org/mailman/listinfo/bess
