test l2tp-tunnel l2tp-group
Function
The test l2tp-tunnel l2tp-group command tests the connection of an L2TP tunnel with specified L2TP group and specified LNS address configured on the LAC.
This command is supported only on the NetEngine 8000 F1A.
Parameters
| Parameter | Description | Value |
|---|---|---|
| group-name |
Specifies the L2TP group name. |
It is a string of 1 to 32 characters. |
| ip-address ip-address |
Specifies the IP address of the peer LNS for L2TP tunnel. |
The value is in dotted decimal format. |
| session |
Specifies the session to be tested. If no session is specified, the system only tests tunnels. If. session is specified, after a tunnel is set up, the system sets up a session over it. |
- |
| remote-backup-service remote-backup-service |
Specifies the remote backup service name. If this parameter is not configured, the LAC tests whether the tunnel or session can be established on the master LAC. If this parameter is configured, the master LAC tests whether the tunnel or session can be established and whether the tunnel or session information can be backed up on the backup LAC. |
The value is a string 1 to 32 characters. |
| hold-time time-value |
Specifies the holdtime of a tunnel. If time is not specified, the system establishes a tunnel and immediately tears it down. If time is set to a value ranging from 1 to 3000, the system establishes a tunnel and tears it down after the specified holdtime expires. |
The value is an integer ranging from 1 to 3000, in seconds. By default, time is 5 seconds. |
Usage Guidelines
Usage Scenario
After the test l2tp-tunnel l2tp-group command is run, the local end sends packets to the destination end that is specified by the parameter ip-address <ip-address> , and then waits for the response from the destination end. If receiving the Reply packet within the timeout period, the local end considers that the L2TP tunnel runs normally; otherwise, the local end considers that the L2TP tunnel is faulty.
If the hold-time parameter is not configured, the system only tests the connection of an L2TP tunnel in the scenario where tunnel authentication is disabled on both ends.Precautions
In VS mode, this command is supported only on the admin VS.
The value of hold-time <time> should be smaller than the idle-cut time of the L2TP tunnel on the LNS. If the LNS is configured with RADIUS remote server authentication, hold-time time should be greater than the authentication response time, and greater than 5 seconds generally.