Dell N3200-ON Networking N-Series Switches User Guide version 6.8.0 - Page 1400

Configuring the Multi-Exit Discriminator in BGP Advertised Routes The following example configures an egress routing policy that sets the metric for matching routes. In the example, VLAN 10 is created, followed by an access list matching directly connected source address 5.5.5.x for which the metric will be injected into the advertised routes. A route map "Inject-MED" is created. This route map sets the match criteria as ACL MED-Hosts and configures the metric for matching routes to be 100. Interface Gi1/0/1 is configured as a member of VLAN 10, VLAN 10 is assigned an IP address, IP routing is enabled, and BGP router 65001 is created with a router ID of 129.168.1.254. A static subnet route 129.168.0.X is created for VLAN 10. An iBGP neighbor 129.168.0.254 is configured and the network 129.168.x.X is configured to inject the metric of 100 into routes matching the prefix-list MED-Hosts. All other routes are permitted using the default metric. console#configure console(config)#vlan 10 console(config-vlan)#exit console(config)#ip prefix-list MED-Hosts seq 10 permit 5.5.5.0 255.255.255.0 console(config)#ip bgp-community new-format console(config)#route-map "Inject-MED" permit 100 console(route-map)#match ip address prefix-list MED-Hosts console(route-map)#set metric 100 console(route-map)#exit console(config)#route-map "Inject-MED" permit 200 console(route-map)#exit console(config)#interface gi1/0/1 console(config-if-Gi1/0/1)#switchport access vlan 10 console(config-if-Gi1/0/1)#exit console(config)#interface vlan 10 console(config-if-vlan10)#ip address 129.168.10.2 /24 console(config-if-vlan10)#exit console(config)#ip routing console(config)#ip route 129.168.0.0 255.255.255.0 129.168.10.1 vlan 10 console(config)#router bgp 65001 console(config-router)#bgp router-id 129.168.1.254 1400 BGP