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Troubleshooting vpls – H3C Technologies H3C S7500E Series Switches User Manual

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100 vlan 2.2.2.9 134312 138882 1 up

100 vlan 3.3.3.9 134216 140476 2 block

# Use the display vpls fib vsi vpna verbose command to display the forwarding table information of
the VPLS instance on Switch A.

[SwitchA] display vpls fib vsi vpna verbose

VSI Name: vpna VSI Index: 0

**Link ID : 1

Role : Primary

State : Active

In Label : 134312

Out Label : 138882

TnlType : LDP-LSP

MTU : 1500

Tunnel ID : 0x1130214

Next Hop : 12.1.1.2

Out IfIndex : 61997067

**Link ID : 2

Role : Backup

State : Standy

In Label : 134216

Out Label : 140476

TnlType : LDP-LSP

MTU : 1500

Tunnel ID : 0x1130215

Next Hop : 13.1.1.3

Out IfIndex : 61997068

# Disconnect the link between Switch A and Switch B. Then, execute the display vpls connection

vsi vpna

command. You can see that the link to 2.2.2.9 is down.

display vpls connection vsi vpna

Total 2 connection(s),

connection(s): 1 up, 0 block, 1 down

VSI Name: vpna Signaling: ldp

VsiID VsiType PeerAddr InLabel OutLabel LinkID VCState

100 vlan 2.2.2.9 134312 138882 1 down

100 vlan 3.3.3.9 134216 140476 2 up

Troubleshooting VPLS

Symptom:

The VPLS link PW is not up.

Analysis:

z

The public network LSP tunnel is not established.

z

The extended session is not working normally.

Solution: