MPLS Tunnel Configuration Tasks

Complete the following tasks to configure a tunnel interface. Configure the tunnel endpoint last; anything configured after the tunnel endpoint does not take effect until the tunnel is brought up the next time. You can perform all other tasks in any order.

Note: Tunnel configuration tasks are relevant only for traffic engineering networks.

1. Create the MPLS tunnel interface.

   host1(config)#interface tunnel mpls:boston

2. (Optional) Configure the LSP to announce its endpoint to an IGP (sometimes referred to as registering the endpoint).

   host1(config-if)#tunnel mpls autoroute announce isis

3. (Optional) Specify a tunnel metric to be used by an IGP in its SPF calculation.

   host1(config-if)#tunnel mpls autoroute metric absolute 100

4. (Optional) Configure the path options used for the tunnel.

   host1(config-if)#tunnel mpls path-option 3 dynamic isis

5. (Optional) Configure the bandwidth required for the tunnel.

   host1(config-if)#tunnel mpls bandwidth 1240

6. (Optional) Configure preemption hold or setup priority.

   host1(config-if)#tunnel mpls traffic-eng priority 4 4

7. (Optional) Configure resource class affinity.

   host1(config-if)#tunnel mpls traffic-eng affinity 0x000C3000 0xFFFFFFFC

   This example of a masked affinity matches only links configured with attribute flags from 0x000C3000 to 0x000C3003.

8. (Optional) Configure retry timer options to apply to a specific tunnel to set up an LSP after a route or setup failure.

   host1(config-if)#tunnel mpls no-route retries 100

   host1(config-if)#tunnel mpls no-route retry-time 45

   host1(config-if)#tunnel mpls retries 250

   host1(config-if)#tunnel mpls retry-time 65

9. (Optional) Associate a text description with the tunnel.

   host1(config-if)#tunnel mpls description southshore

10. Configure the tunnel endpoint.

    host1(config-if)#tunnel destination 10.12.21.5

Related Topics

•  MPLS Global Configuration Tasks
•  MPLS Interface Configuration Tasks
•  MPLS Interface Configuration Tasks
•  MPLS Tunnel Profile Configuration Tasks
•  Additional LDP Configuration Tasks
•  Additional RSVP-TE Configuration Tasks
• interface tunnel command
• tunnel destination command
• tunnel mpls affinity command
• tunnel mpls autoroute announce command
• tunnel mpls autoroute metric command
• tunnel mpls bandwidth command
• tunnel mpls description command
• tunnel mpls no-route retries command
• tunnel mpls no-route retry-time command
• tunnel mpls path-option command
• tunnel mpls priority command
• tunnel mpls retries command
• tunnel mpls retry-time command

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