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# Creating Persistent Tunnels

The E-series router supports persistent tunnels. A persistent tunnel is one that is configured to remain available. Persistent tunnels have only local significance; that is, they apply only to the end of the tunnel where they are set. If the other end of the tunnel chooses to terminate the tunnel, the tunnel is removed.

- To create a persistent tunnel, you configure an idle-timeout value of zero.
  `
  host1(config)#l2tp tunnel idle-timeout 0
  `

#### Related Topics

- l2tp tunnel idle-timeout

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