3Com 3C13636 Configuration Manual page 830

3Com Router 3000 Ethernet Family
Configuration Guide
2.3.6 Configuring LDP Authentication Mode.................................................................. 2-10
2.3.7 Configuring the Type of Label to Be Distributed to the Penultimate Hop ............. 2-10
2.4 MPLS Display and Debug................................................................................................ 2-10
2.4.1 Displaying and Debugging MPLS ......................................................................... 2-11
2.4.2 Displaying and Debugging LDP ............................................................................ 2-13
2.5 MPLS Configuration Example.......................................................................................... 2-14
2.6 Troubleshooting MPLS Configuration.............................................................................. 2-16
Chapter 3 BGP/MPLS VPN Configuration ................................................................................... 3-1
3.1 BGP/MPLS VPN Overview ................................................................................................ 3-1
3.1.1 BGP/MPLS VPN Model........................................................................................... 3-2
3.1.2 BGP/MPLS VPN Implementation............................................................................ 3-4
3.1.3 HoVPN .................................................................................................................... 3-6
3.1.4 Introduction to Multi-Role Host Features ................................................................ 3-9
3.1.5 OSPF VPN Extension ........................................................................................... 3-10
3.1.6 Multi-AS BGP/MPLS VPN..................................................................................... 3-13
3.2 BGP/MPLS VPN Configuration........................................................................................ 3-17
3.2.1 Configuring CE Router .......................................................................................... 3-17
3.2.2 Configuring PE Router .......................................................................................... 3-18
3.2.3 Configuring P Router............................................................................................. 3-33
3.3 BGP/MPLS VPN Display and Debug............................................................................... 3-33
3.4 BGP/MPLS VPN Configuration Example ........................................................................ 3-35
3.4.1 Configuring Integrated BGP/MPLS VPN............................................................... 3-35
3.4.2 Configuring GRE Tunnel BGP/MPLS VPN ........................................................... 3-40
3.4.3 Configuring Extranet ............................................................................................. 3-43
3.4.4 Configuring Hub&Spoke........................................................................................ 3-48
3.4.5 Configuring CE Dual-Home................................................................................... 3-53
3.4.6 Configuring Multi-Role Hosts ................................................................................ 3-58
3.4.7 Configuring HoVPN............................................................................................... 3-60
3.4.8 Configuring OSPF Multi-Instance Sham Link ....................................................... 3-63
3.4.9 Configuring OSPF Multi-Instance CE.................................................................... 3-68
3.4.10 Configuring Inter-Provider Backbones Option A ................................................. 3-69
3.4.11 Configuring Inter-Provider Backbones Option B ................................................. 3-82
3.4.12 Configuring Inter-Provider Backbones Option C................................................. 3-89
3.5 Troubleshooting ............................................................................................................... 3-98
3.5.1 Troubleshooting Multi-role Host Configuration...................................................... 3-98
3.5.2 Troubleshooting OSPF Multi-instance Configuration............................................ 3-98
Chapter 4 MPLS L2VPN Configuration........................................................................................ 4-1
4.1 Overview ............................................................................................................................ 4-1
4.1.1 Introduction to MPLS L2VPN .................................................................................. 4-1
4.1.2 MPLS L2VPN Frame Format .................................................................................. 4-2
4.1.3 Packet Forwarding .................................................................................................. 4-3
4.1.4 MPLS L2VPN Implementation ................................................................................ 4-3
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