Debugging A Tunnel; Configuration Examples; Example For Configuring Tunnel Policies For The L3Vpn - Huawei quidway s7700 Configuration Manual

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Quidway S7700 Smart Routing Switch

Configuration Guide - VPN

1.8.2 Debugging a Tunnel

If a VPN tunnel runs abnormally, you need to debug the VPN tunnel to locate the fault and

analyze the cause. Note that debugging affects the performance of the system.

Debugging affects the performance of the system. Therefore, after debugging, run the undo

debugging all command to disable the debugging immediately.

When a fault occurs in a tunnel, run the following debugging commands in the user view to

debug the tunnel and locate the fault.

For the procedure of outputting the debugging information, refer to Information Center

Configuration.

For the description about the debugging commands, refer to the Quidway S7700 Smart Routing

Switch Debugging Reference.

This section provides examples for applying a tunnel policy to the L3VPN or L2VPN.

Networking Requirements

and CE2 and CE4 belongs to VPNB. Two MPLS TE tunnels and an LSP are set up between PE1

and PE2. VPNA is binding one of TE tunnels. VPNB prefers the TE tunnels.

Issue 01 (2011-07-15)

Run the display mpls l2vpn connection interface interface-type interface-number

command to view information about the tunnel used by the VC in the Kompella L2VPN.

Run the debugging tunnel all [ interface tunnel interface-number ] command in the user

view to enable tunnel debugging.

Run the debugging tnlm { all | error | event } command in the user view to enable the

debugging related to tunnel management.

shows the networking diagram of the MPLS L3VPN. CE1 and CE3 belong to VPNA,

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1 VPN Tunnel Management Configuration