Operation Manual – MBGPH3C S9500 Series Routing SwitchesChapter 1 MBGP Multicast ExtensionConfiguration1-9To do... Use the command...Configure the maximum number ofroutes that can be received by a peergrouppeer { group-name | peer-address }route-limit route-limit-value[ route-limit-percent ] [ alter-only |idle-forever | idle-timeouttimeout-value ]Restore the maximum number of routesthat can be received by a peer groupundo peer { group-name |peer-address } route-limit1.2.9 Configuring MBGP Route AggregationMBGP supports the manual aggregation of routes. Manual aggregation aggregates thelocal MBGP routes. A series of parameters can be configured during manual routeaggregation.Perform the following operation in IPv4 multicast sub-address family view toconfigure/remove MBGP route aggregation:To do... Use the command...Configure theaggregation of localroutesaggregate address mask [ as-set | attribute-policyroute-policy-name | detail-suppressed | origin-policyroute-policy-name | suppress-policy route-policy-name ] *Remove theaggregation of localroutesundo aggregate address mask [ as-set | attribute-policyroute-policy-name | detail-suppressed | origin-policyroute-policy-name | suppress-policy route-policy-name ] *By default, MBGP does not aggregate local routes.1.2.10 Configuring an MBGP Route ReflectorTo ensure the interconnectivity among MBGP peers, it is necessary to establishfully-closed network among IBGP multicast peers. However, some internal MBGPmulticast networks are very large, and it costs a good sum to establish a fully-closednetwork.Route reflector solves this problem. The core is to specify a router as the focus of theinternal sessions. Multiple MBGP multicast routers can be peers of one central point,namely a multiple route reflector, which in turn creates peer relationship with otherreflectors. The route reflector is the focus of other routers. The routers other than thosereflectors are called clients. The clients are in peer with route reflects and exchangerouting information with them. The route reflectors transfer (reflect) informationbetween the clients in turn.For the details of the principles and configurations, refer to BGP Configuration in the IPRouting Volume.
