Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 294
Aggregate routes
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Configure clusters of routers where one router is a concentration router and the others are clients who receive their updates from the concentration router. 1 Assign an ID to a router reflector cluster in ROUTER-BGP mode. You can have multiple clusters in an AS. cluster-id cluster-id 2 Assign a neighbor to the router reflector cluster in ROUTER-BGP mode. neighbor {ip-address} 3 Configure the neighbor as a route-reflector client in ROUTER-NEIGHBOR mode, then return to ROUTER-BGP mode. route-reflector-client exit 4 Assign a peer group template as part of the route-reflector cluster in ROUTER-BGP mode. template template-name 5 Configure the template as the route-reflector client in ROUTER-TEMPLATE mode. route-reflector-client When you enable a route reflector, the system automatically enables route reflection to all clients. To disable route reflection between all clients in this reflector, use the no bgp client-to-client reflection command in ROUTER-BGP mode. You must fully mesh all the clients before you disable route reflection. Configure BGP route reflector OS10(config)# router bgp 102 OS10(conf-router-bgp-102)# cluster-id 4294967295 OS10(conf-router-bgp-102)# neighbor 32.1.1.2 OS10(conf-router-neighbor)# route-reflector-client OS10(conf-router-neighbor)# exit OS10(conf-router-bgp-102)# template zanzibar OS10(conf-router-template)# route-reflector-client Aggregate routes OS10 provides multiple ways to aggregate routes in the BGP routing table. At least one route of the aggregate must be in the routing table for the configured aggregate route to become active. AS_SET includes AS_PATH and community information from the routes included in the aggregated route. 1 Assign an AS number in CONFIGURATION mode. router bgp as-number 2 Enter Address Family mode in ROUTER-BGP mode. address-family {[ipv4 | ipv6] [unicast]} 3 to aggregate in ROUTER-BGPv4-AF mode. aggregate-address ip-address mask Configure aggregate routes OS10(config)# router bgp 105 OS10(conf-router-bgp-105)# address-family ipv4 unicast OS10(conf-router-bgpv4-af)# aggregate-address 3.3.0.0/16 View running configuration OS10(conf-router-bgpv4-af)# do show running-configuration bgp ! Version ! Last configuration change at Jul 27 06:51:17 2016 ! ! router bgp 105 ! address-family ipv4 unicast aggregate-address 3.3.0.0/16 294 Layer 3