15Step Command Remarks9. (Optional.) Configure afiltering policy to filter thereceived routes.filter-policy { acl-number |prefix-list ip-prefix-name } importBy default, BGP does not filter thereceived routes.For more information about BGP, see Layer 3—IP Routing Configuration Guide.Displaying information about MCEExecute display commands in any view.Task CommandDisplay VPN instance information. display ip vpn-instance [ instance-name vpn-instance-name ]Display BGP peer groupinformation for a VPN instance. display bgp group ipv4 vpn-instance vpn-instance-name [ group-name ]Display BGP peer information for aVPN instance.display bgp peer ipv4 vpn-instance vpn-instance-name [ group-namelog-info | ip-address { log-info | verbose } | verbose ]For other MCE related displaying and maintaining commands, such as displaying routing tableinformation for a VPN instance and maintaining routing sessions for a VPN instance, see Layer 3—IPRouting Command Reference.MCE configuration examplesUsing OSPF to advertise VPN routes to the PENetwork requirementsAs shown in Figure 4, the MCE device is connected to VPN 1 through VLAN-interface 10 and to VPN 2through VLAN-interface 20. OSPF runs in VPN 2.Configure the MCE device to separate routes from different VPNs and advertise the VPN routes to PE 1through OSPF.