Troubleshooting Mpls L2Vpn - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide

4.8 Troubleshooting MPLS L2VPN

Symptom 1:
Configuring Layer 2 VPN on a VLAN interface fails.
Solution:
Check that MPLS/BGP VPN, WebSwitch, Multicast or VLL is not enabled on the
interface.
Check that the VLAN interface is not a Super VLAN or Sub-VLAN. You can
configure Layer 2 VPN only on normal VLAN interfaces.
Symptom 2:
After configuring L2VPN, pinging peer end fails. Check the state of VC and find out that
it is down. The value of Remote is invalid.
Solution:
Step 1: Check that the PEs at the two ends are using the same encapsulation type and
MTU to have the VC go up.
Step 2: Check that the Remote parameter is configured at both ends and the remote
addresses are correctly configured.
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Chapter 4 MPLS L2VPN Configuration