Step 7: Take Appropriate Action

Purpose

Depending on the error you encountered in your investigation, you must take the appropriate action to correct the problem. In this example, an interface is incorrectly configured at the [edit protocols mpls] hierarchy level on egress router R6.

Action

To correct the error in this example, follow these steps:

1. Activate the interface in the MPLS protocol configuration on egress router R6:

user@R6> edit

user@R6# edit protocols mpls

[edit protocols mpls]

user@R6# show

user@R6# activate interface so-0/0/3.0 

2. Verify and commit the configuration:

[edit protocols mpls]

user@R6# show

user@R6# commit

Sample Output

user@R6> edit 

Entering configuration mode

[edit]

user@R6# edit protocols mpls 

[edit protocols mpls]

user@R6# show 

label-switched-path R6-to-R1 {

    to 10.0.0.1;

}

inactive: interface so-0/0/0.0;

inactive: interface so-0/0/1.0;

inactive: interface so-0/0/2.0;

inactive: interface so-0/0/3.0;                                    <<< Incorrectly configured interface

[edit protocols mpls]

user@R6# activate interface so-0/0/3 

[edit protocols mpls]

user@R6# show 

label-switched-path R6-to-R1 {

    to 10.0.0.1;

}

inactive: interface so-0/0/0.0;

inactive: interface so-0/0/1.0;

inactive: interface so-0/0/2.0;

interface so-0/0/3.0;                                <<< Correctly configured interface

[edit protocols mpls]

user@R6# commit 

commit complete

What It Means

The sample output shows that the incorrectly configured interface so-0/0/3.0 on egress router R6 is now activated at the [edit protocols mpls] hierarchy level. The LSP can now come up.