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NE40E V800R010C10SPC500 Configuration Guide - User Access 01

This is NE40E V800R010C10SPC500 Configuration Guide - User Access
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Setting a Base Value for L2TP Tunnel IDs

Setting a Base Value for L2TP Tunnel IDs

The master and slave routers carry out L2TP two-node hot backup in load balancing mode. A based value can be set on either of router for allocating L2TP tunnel IDs. This setting ensures to a certain extent that tunnel IDs are unique on each router.


The router assigns an integer value as an L2TP tunnel ID and the ID starts with 1. In the two-node hot backup load balancing scenario, tunnel information is backed up between the master and slave routers. During backup, identical tunnel IDs may exist on a single router. The set l2tp tunnel base-id base-id command can be used to specify a base value that one router uses to allocate tunnel IDs (Tunnel ID = Base value + Index starting with 1). The other router uses the default base value of 0. The settings ensure to a certain extent that each tunnel ID is unique on a single router.

Perform the following steps on either of the master and slave routers:


  1. Run system-view

    The system view is displayed.

  2. Run set l2tp tunnel base-id base-id

    A base value for L2TP tunnel IDs is set.

    • If a tunnel ID carried in backup information is the same as a local tunnel ID, the router deletes the existing local tunnel information and accepts the backup tunnel information.

    • The set l2tp tunnel base-id base-id command cannot be used on the router that has established L2TP tunnels and allocated tunnel IDs.

Updated: 2019-01-03

Document ID: EDOC1100055031

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