Multicast tutorial PDF - Garr

MBGP Overview•New multiprotocol attributes:MP_REACH_NLRIUsed to advertise one or more routes to a peer that shares thesame path attributeMP_UNREACH_NLRIUsed to indicate a previously route is no longer reachable•They include the next information:(‏IPv4‎‏)‏ Address Family Information (AFI) = 1(‏unicast Sub-AFI = 1 (NLRI is used for(‏check Sub-AFI = 2 (NLRI is used for multicast RPFSub-AFI = 3 (NLRI is used for both unicast and multicast RPF(‏check•This information is used to build routing tables•Allows different policies and topologies between multicast and unicast67