• Assign an ID to a router reflector cluster.CONFIG-ROUTER-BGP modebgp cluster-id cluster-idYou can have multiple clusters in an AS.• Configure the local router as a route reflector and the neighbor or peer group identified is the routereflector client.CONFIG-ROUTER-BGP modeneighbor {ip-address | peer-group-name} route-reflector-clientWhen you enable a route reflector, Dell Networking OS automatically enables route reflection to allclients. To disable route reflection between all clients in this reflector, use the no bgp client-to-client reflection command in CONFIGURATION ROUTER BGP mode. All clients must be fullymeshed before you disable route reflection.To view a route reflector configuration, use the show config command in CONFIGURATION ROUTERBGP mode or the show running-config bgp in EXEC Privilege mode.Aggregating RoutesDell Networking OS provides multiple ways to aggregate routes in the BGP routing table. At least onespecific route of the aggregate must be in the routing table for the configured aggregate to becomeactive.To aggregate routes, use the following command.AS_SET includes AS_PATH and community information from the routes included in the aggregated route.• Assign the IP address and mask of the prefix to be aggregated.CONFIG-ROUTER-BGP modeaggregate-address ip-address mask [advertise-map map-name] [as-set][attribute-map map-name] [summary-only] [suppress-map map-name]Example of Viewing Aggregated RoutesIn the show ip bgp command, aggregates contain an ‘a’ in the first column (shown in bold) and routessuppressed by the aggregate contain an ‘s’ in the first column.Dell#show ip bgpBGP table version is 0, local router ID is 10.101.15.13Status codes: s suppressed, d damped, h history, * valid, > bestPath source: I - internal, a - aggregate, c - confed-external, r -redistributed, n - networkOrigin codes: i - IGP, e - EGP, ? - incompleteNetwork Next Hop Metric LocPrf Weight Path*> 7.0.0.0/29 10.114.8.33 0 0 18508 ?*> 7.0.0.0/30 10.114.8.33 0 0 18508 ?*>a 9.0.0.0/8 192.0.0.0 32768 18508 701 {7018 2686 3786} ?*> 9.2.0.0/16 10.114.8.33 0 18508 701 i*> 9.141.128.0/24 10.114.8.33 0 18508 701 7018 2686 ?Dell#204 Border Gateway Protocol IPv4 (BGPv4)
