Panasonic NN46240-710 - Manual (Page 172)

Nortel Secure Router 8000 Series
Troubleshooting - VPN___________ 5 VPLS troubleshooting
Encapsulation Type
MTU
VSI State
VSI ID
*peer Router ID
VC Label
Session
Tunnel ID
Interface Name
State
vlan
1500
down
1
2.2.2.9
17408
up
0x6002001,
Ethernet2/0/0
up
The AC at both ends is Up. The tunnel at both ends of a PW is existent, and the tunnel ID is not
0x0.
Step 2 Run the display vsi remote Idp command on PE2.
The display is as follows:
Vsi Peer VC Group Vsi MTU Vsi
ID RouterID Label ID Type Value Index
1 1.1.1.1 17409 0 vlan 1000
-
The preceding display shows that PE2 has a label to the remote.
Use the display vsi remote Idp command on PE1 and find that PE1 cannot receive the label of
PE2.
It indicates that PE2 has problem.
Step 3 Check whether PE2 sends labels to PE1.
First, check that a remote peer is specified for PE2.
Find that the specified peer is not correct; it should be 1.1.1.9 rather than 2.2.2.9. Modify the
peer.
—End
Troubleshooting procedure
Step 1 Run the display vsi verbose command on PE.
Step 2 Check the status of the VSI and that of the AC. Find that the VSI is Down but the AC is Up.
Step 3 Check the status of the PW. Find that the PW cannot be set up.
Step 4 Check whether the tunnel is existent. Find that the tunnel exists.
Step 5 Use the display vsi remote ldp command to check whether the remote label is received.
Step 6 If one end cannot receive the label from the remote end, check that the configuration of the
remote peer is correct.
—End
Summary
If the signaling protocol is LDP and the VSI cannot be Up, the errors related to the peer are as
follows:
Issue 5.3 (30 March 2009) Nortel Networks Inc. 5-13