Panasonic NN46240-710 - Manual (Page 170)

Nortel Secure Router 8000 Series
Troubleshooting - VPN___________ 5 VPLS troubleshooting
If the output does not include the Interface Name, it indicates that the VSI is not bound with the
AC. You need to bind the CE-bound interface with the VSI.
For details, see 5.2.2 Configuration notes.
Step 2 Check the status of the session.
If the session is not set up, use the display ip routing-table command to check the route to the
remote peer. If no route exists, configure a dynamic routing protocol or static route.
Step 3 Check the status of the PW or tunnel.
If the session is Up, check the status of the PW.
If no PW is available, the cause can be the absence of a tunnel to the peer. You can use the
display tunnel-info all command to check the following:
• If the tunnel does not exist, configure the proper tunnel.
• If the tunnel exists, check if the peer of the VSI is specified and the peer is consistent with
the peer that corresponds to the session.
Step 4 Check that parameters are consistent on both ends.
If the tunnel is normal, and the PW still cannot be set up, check that the encapsulation type,
MTU, and VSI ID are consistent on both ends.
Ensure the local VPN target satisfies the following conditions:
• The local export-extcommunity and the peer import-extcommunity are consistent.
• The local import-extcommunity and the peer export-extcommunity are consistent.
The traffic can flow in the two-way mode only when the preceding two requirements are
satisfied.
The traffic can flow only in the one-way mode if only one of the two requirements is met.
If the fault persists, use the display current-configuration | begin vsi vsi-name command to
check the MAC address learning mode or contact the Nortel technical personnel.
CQ NOTE
To make the configuration of the MAC address learning effective, run the shutdown command on the
interface and then use the undo shutdown command.
---- End
5.3 Troubleshooting cases
This section provides the following troubleshooting cases:
• A VSI cannot be up in LDP signaling mode
• Packets cannot forward successfully between two PEs though VSI is up
• A VSI cannot be up in BGP signaling mode
Issue 5.3 (30 March 2009) Nortel Networks Inc. 5-11