3Com Router 3000 Ethernet FamilyConfiguration Guide Table of Contents3Com Corporationii2.3.6 Configuring LDP Authentication Mode.................................................................. 2-102.3.7 Configuring the Type of Label to Be Distributed to the Penultimate Hop ............. 2-102.4 MPLS Display and Debug................................................................................................ 2-102.4.1 Displaying and Debugging MPLS ......................................................................... 2-112.4.2 Displaying and Debugging LDP ............................................................................ 2-132.5 MPLS Configuration Example.......................................................................................... 2-142.6 Troubleshooting MPLS Configuration.............................................................................. 2-16Chapter 3 BGP/MPLS VPN Configuration ................................................................................... 3-13.1 BGP/MPLS VPN Overview ................................................................................................ 3-13.1.1 BGP/MPLS VPN Model........................................................................................... 3-23.1.2 BGP/MPLS VPN Implementation............................................................................ 3-43.1.3 HoVPN .................................................................................................................... 3-63.1.4 Introduction to Multi-Role Host Features ................................................................ 3-93.1.5 OSPF VPN Extension ........................................................................................... 3-103.1.6 Multi-AS BGP/MPLS VPN..................................................................................... 3-133.2 BGP/MPLS VPN Configuration........................................................................................ 3-173.2.1 Configuring CE Router .......................................................................................... 3-173.2.2 Configuring PE Router .......................................................................................... 3-183.2.3 Configuring P Router............................................................................................. 3-333.3 BGP/MPLS VPN Display and Debug............................................................................... 3-333.4 BGP/MPLS VPN Configuration Example ........................................................................ 3-353.4.1 Configuring Integrated BGP/MPLS VPN............................................................... 3-353.4.2 Configuring GRE Tunnel BGP/MPLS VPN ........................................................... 3-403.4.3 Configuring Extranet ............................................................................................. 3-433.4.4 Configuring Hub&Spoke........................................................................................ 3-483.4.5 Configuring CE Dual-Home................................................................................... 3-533.4.6 Configuring Multi-Role Hosts ................................................................................ 3-583.4.7 Configuring HoVPN............................................................................................... 3-603.4.8 Configuring OSPF Multi-Instance Sham Link ....................................................... 3-633.4.9 Configuring OSPF Multi-Instance CE.................................................................... 3-683.4.10 Configuring Inter-Provider Backbones Option A ................................................. 3-693.4.11 Configuring Inter-Provider Backbones Option B ................................................. 3-823.4.12 Configuring Inter-Provider Backbones Option C................................................. 3-893.5 Troubleshooting ............................................................................................................... 3-983.5.1 Troubleshooting Multi-role Host Configuration...................................................... 3-983.5.2 Troubleshooting OSPF Multi-instance Configuration............................................ 3-98Chapter 4 MPLS L2VPN Configuration........................................................................................ 4-14.1 Overview ............................................................................................................................ 4-14.1.1 Introduction to MPLS L2VPN .................................................................................. 4-14.1.2 MPLS L2VPN Frame Format .................................................................................. 4-24.1.3 Packet Forwarding .................................................................................................. 4-34.1.4 MPLS L2VPN Implementation ................................................................................ 4-3
