Netgear XCM8806 Chassis User Manual - Page 705

NETGEAR 8800 User Manual The topology shown in Figure 80 minimizes the number of BGP peering sessions required in an AS by using route reflectors. In this example, although the BGP speakers 3.3.3.3 and 4.4.4.4 do not have a direct BGP peering session between them, these speakers still receive routes from each other indirectly through 2.2.2.2. The router 2.2.2.2 is called a route reflector and is responsible for reflecting routes between its clients. Routes received from the client 3.3.3.3 by the router 2.2.2.2 are reflected to 4.4.4.4 and vice-versa. Routes received from 1.1.1.1 are reflected to all clients. To configure router 1.1.1.1, use the following commands: create vlan to_rr configure vlan to_rr add port 1:1 configure vlan to_rr ipaddress 10.0.0.1/24 enable ipforwarding vlan to_rr configure bgp router 1.1.1.1 configure bgp as-number 100 create bgp neighbor 10.0.0.2 remote-as 100 enable bgp enable bgp neighbor all To configure router 2.2.2.2, the route reflector, use the following commands: create vlan to_nc configure vlan to_nc add port 1:1 configure vlan to_nc ipaddress 10.0.0.2/24 enable ipforwarding vlan to_nc create vlan to_c1 configure vlan to_c1 add port 1:2 configure vlan to_c1 ipaddress 20.0.0.2/24 enable ipforwarding vlan to_c1 create vlan to_c2 configure vlan to_c2 add port 1:2 configure vlan to_c2 ipaddress 30.0.0.2/24 enable ipforwarding vlan to_c2 configure bgp router 2.2.2.2 configure bgp as-number 100 create bgp neighbor 10.0.0.1 remote-as 100 create bgp neighbor 20.0.0.1 remote-as 100 create bgp neighbor 30.0.0.1 remote-as 100 configure bgp neighbor 20.0.0.1 route-reflector-client configure bgp neighbor 30.0.0.1 route-reflector-client enable bgp neighbor all enable bgp To configure router 3.3.3.3, use the following commands: create vlan to_rr configure vlan to_rr add port 1:1 configure vlan to_rr ipaddress 20.0.0.1/24 enable ipforwarding vlan to_rr Chapter 26. BGP | 705