3Com Switch 8800 Configuration Guide Chapter 37 BGP/MPLS VPN Configuration37-25Operation CommandRemove to advertise default routeto the peer (group)undo peer { peer-address | group-name }default-route-advertise [ vpn-instancevpn-instancename]Step 7: Configure BGP neighbor as the UPE of BGP/MPLS VPNThis command is only used for UPE (user port function) of BGP/MPLS VPN.Configuring the following commands in the VPNv4 sub-address family view.Table 37-33 Configure BGP neighbor as the UPE of BGP/MPLS VPNOperation CommandConfigure BGP neighbor as theUPE of BGP/MPLS VPN peer peer-address upeDisable the configuration undo peer peer-address upe37.2.3 Configuring P RouterP router does not maintain VPN routes, but do keep connection with public network andcoordinate with PE in creating LSPs. These configurations are required on P router:Step 1: Configure MPLS basic capacity and enable LDP on the interfaces connecting Prouter to PE router, for forwarding MPLS packets. See Chapter 36 MPLS BasicCapability Configuration.Step 2: Enable OSPF protocol at the interfaces connecting P router to PE router andimport direct-connect routes. See “OSPF” part in “Routing Protocol” for details.37.3 Displaying and Debugging BGP/MPLS VPNI. Displaying VPN address information from BGP tableAfter the above configuration, execute display command in any view to display therunning of the VPNv4 information in BGP database configuration, and to verify theeffect of the configuration.Table 37-34 Display VPN address information from BGP tableOperation CommandDisplay VPN address information fromBGP tabledisplay bgp vpnv4 { all |route-distinguisher rd-value |vpn-instance vpn-instance-name }{ group | network | peer |routing-table }
