Multicast tutorial PDF - Garr

MBGP—Capability Negotiation•RFC 2842•BGP routers establish BGP sessions through the OPENmessageOPEN message contains optional parametersBGP session is terminated if OPEN parameters are not recognised•MBGP peers use this procedure to determine if they supportMBGP and which AFIs and SAFIs support each oneIf there is no match, notification is sent and peering doesn’tcome upIf neighbor doesn’t include the capability parameters in open,session backs off and reopens with no capability parametersPeering comes up in unicast-only mode68