Panasonic NN46240-710 - Manual (Page 107)

Nortel Secure Router 8000 Series
Troubleshooting - VPN___________
Contents
4 MPLS L2VPN troubleshooting...................................................................................4-1
4.1 MPLS Layer 2 VPN overview..................................................................................................................... 4-2
4.1.1 Introduction to MPLS Layer 2 VPN................................................................................................... 4-2
4.1.2 CCC MPLS Layer 2 VPN...................................................................................................................4-3
4.1.3 SVC MPLS Layer 2 VPN................................................................................................................... 4-4
4.1.4 Martini MPLS Layer 2 VPN............................................................................................................... 4-4
4.1.5 PWE3 MPLS Layer 2 VPN................................................................................................................ 4-5
4.1.6 Kompella MPLS Layer 2 VPN........................................................................................................... 4-6
4.1.7 MPLS Layer 2 VPN IP-interworking................................................................................................. 4-6
4.2 Layer 2 VPN troubleshooting.......................................................................................................................4-7
4.2.1 Typical networking............................................................................................................................. 4-8
4.2.2 Configuration notes...........................................................................................................................4-10
4.2.3 Troubleshooting flowchart................................................................................................................4-13
4.2.4 Troubleshooting procedure............................................................................................................... 4-14
4.3 Troubleshooting cases................................................................................................................................ 4-17
4.3.1 VC type is not supported when setting up a PW on an ATM subinterface...................................... 4-17
4.3.2 A static PW cannot be switched with other PWs.............................................................................. 4-19
4.3.3 Switch-L2VC is down after PW switching configuration................................................................ 4-21
4.3.4 PW attributes cannot be changed by using the reset pw command.................................................. 4-22
4.3.5 VC is up but the PPP session cannot establish..................................................................................4-26
4.3.6 VC under the interface is missing after the link protocol changes....................................................4-27
4.3.7 Both the session and the AC are up, but the VC cannot be up......................................................... 4-29
4.3.8 Ethernet interconnects with ATM, the VC is up, but the ping between CEs fails............................4-33
4.3.9 CEs cannot communicate by using the accessing mode of VLAN.................................................. 4-35
4.3.10 CEs cannot access each other though the static VC is up................................................................ 4-35
4.3.11 VC is down though AC is up............................................................................................................ 4-37
4.3.12 Large-sized packets are lost between CEs on two ends of Layer 2 VPN........................................ 4-38
4.3.13 Failure to establish the MPLS LDP session between PEs when RIP-1 is used in the Layer 2 VPN
backbone.....................................................................................................................................................4-39
4.4 FAQs...........................................................................................................................................................4-40
4.5 Diagnostic tools.......................................................................................................................................... 4-44
4.5.1 display commands.............................................................................................................................4-44
4.5.2 debugging commands....................................................................................................................... 4-45
Issue 5.3 (30 March 2009) Nortel Networks Inc. i