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NE40E V800R010C10SPC500 Configuration Guide - User Access 01

This is NE40E V800R010C10SPC500 Configuration Guide - User Access
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Configuring the Hello Interval

Configuring the Hello Interval

An LAC and an LNS detect the connectivity of the tunnel established between them by exchanging Hello packets.


To check the connectivity of the tunnel, the LAC and the LNS send hello packets periodically and the receiver of the hello packet returns a response.

If the LAC or LNS fails to receive hello response packets in the specified time period, the packets are re-sent. If the response is not received after the packets are re-sent for a specified number of times (see Configuring Control Packet Retransmission), the L2TP tunnel is regarded disconnected, and all sessions on the tunnel are deleted.

Perform the following steps on the NE40E:


  1. Run system-view

    The system view is displayed.

  2. Run l2tp-group group-name

    The L2TP group view is displayed.

  3. Run tunnel timer hello hello-interval

    The Hello interval is configured.

  4. (Optional) Run tunnel hello peer-check

    The NE40E is configured to send Hello packets after a Hello interval from when it receives Hello packets from the peer end.

  5. Run commit

    The configuration is committed.

Updated: 2019-01-03

Document ID: EDOC1100055031

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