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Enable MPLS and RSVP

You can enable MPLS and RSVP throughout the rest of the network by repeating Step 1, Enable MPLS and RSVP on Routers and Step 2, Enable MPLS on Transit Router Interfaces as appropriate on other routers until all routers are enabled with MPLS and RSVP.

Note: Even though the MPLS and RSVP protocols are enabled, you must complete all five steps in Configuring MPLS on Your Network to have the MPLS protocol running on your network.

  1. Enable MPLS and RSVP on Routers
  2. Enable MPLS on Transit Router Interfaces

Enable MPLS and RSVP on Routers

Action

To enable MPLS and RSVP on routers in your network, follow these steps:

  1. In configuration mode, go to the following hierarchy level:
    [edit]user@host# edit protocols
  2. Configure MPLS and RSVP:
    [edit protocols]user@host# set mpls interface all user@host# set rsvp interface all
  3. Disable the management interface for MPLS and RSVP:
    [edit protocols mpls]user@host# set interface fxp0.0 disable [edit protocols rsvp]user@host# set interface fxp0.0 disable
  4. Verify and commit the configuration:
    user@host# show
    user@host# commit

Sample Output

user@R1> edit
Entering configuration mode

[edit]
user@R1# edit protocols

[edit protocols]
user@R1# set mpls interface all
  
[edit protocols]
user@R1# set rsvp interface all
  
[edit protocols]
user@R1# show 
rsvp {
    interface all;
    interface fxp0.0 {
        disable;
    }
}
mpls {
    interface all;
    interface fxp0.0 {
        disable;
    }
}

[edit protocols]
user@R1# commit 
commit complete

Meaning

The sample output shows that router R1 has MPLS and RSVP enabled on all interfaces, except for the management interface (fxp0.0), which is disabled. It is considered best practice to disable the management interlace (fxp0.0) for MPLS and RSVP to preempt any problems. The sample network shown in MPLS Network Topology has all interfaces (with the management interface [fxp0.0]) disabled on all routers configured with the MPLS and RSVP protocols.

Typically every interface that you want to use is listed. For an example of a router configured with specific interfaces, see Enable IS-IS on Routers in Your Network.


Enable MPLS on Transit Router Interfaces

Purpose

Even though transit interfaces are enabled with MPLS when you include the family mpls statement in the configuration, MPLS as a whole is not configured on your router or in your network. You must complete all five steps in this topic to have the MPLS protocol running on your network.

Note: The management interface (fxp0) and the loopback interface (lo0) are not transit interfaces.

Action

To configure transit interfaces to support MPLS, follow these steps:

  1. In configuration mode, go to the following hierarchy level:
    [edit]user@host# edit interfaces
  2. Configure MPLS:
    [edit interfaces]user@host# set type-fpc/pic/port unit number family mpls
  3. Verify and commit the configuration:
    user@host# show
    user@host# commit

Sample Output

user@R1> edit
Entering configuration mode

[edit]
user@R1# edit interfaces

[edit interfaces]
user@R1# set so-0/0/2 unit 0 family mpls

[edit interfaces]
user@R1# show 
so-0/0/2 {
    unit 0 {
        family inet {
            address 10.1.13.1/30;
        }
        family iso;
         family mpls;
    }
}

[edit interfaces]
user@R1# commit 
commit complete

Meaning

The sample output shows that the interface so-0/0/2 is configured to support MPLS. The family statement identifies which protocol packets are accepted into the interfaces. For example, valid MPLS packets are dropped if the interface is not configured with the MPLS protocol.


Published: 2010-01-25

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