Step 4: Check the Administrative Group Configuration on R5

Purpose

Focus on R5 to determine which interfaces are associated with the red color, and make any necessary corrections.

Action

To check the administrative group configuration on R5 and make any necessary corrections, enter the following JUNOS CLI commands:

user@R5> edit 

[edit protocols mpls]

user@R5# show 

user@R5# delete interface so-0/0/1 admin-group 

user@R5# set interface so-0/0/0 admin-group red 

user@R5# show 

user@R5# commit 

Sample Output 1

user@R5> edit 

Entering configuration mode

[edit protocols mpls]

user@R5# show 

admin-groups {

    red 8;

}

interface fxp0.0 {

    disable;

}

interface so-0/0/0.0;

interface so-0/0/1.0 {                            <<<incorrect interface configured with admin-group

    admin-group red;

}

interface so-0/0/2.0;

Sample Output 2

[edit protocols mpls]

user@R5# delete interface so-0/0/1 admin-group 

[edit protocols mpls]

user@R5# set interface so-0/0/0 admin-group red 

[edit protocols mpls]

user@R5# show 

admin-groups {

    red 8;

    blue 4;

}

interface fxp0.0 {

    disable;

}

interface so-0/0/0.0 {                            <<<correct interface configured with admin-group

    admin-group red;

}

interface so-0/0/1.0;

interface so-0/0/2.0;

[edit protocols mpls]

user@R5# commit 

commit complete

Sample Output 3

user@R1> show mpls lsp 

Ingress LSP: 1 sessions

To              From            State Rt ActivePath       P     LSPname

10.0.0.6        10.0.0.1        Up     1                  *     R1-to-R6

Total 1 displayed, Up 1, Down 0

Egress LSP: 1 sessions

To              From            State   Rt Style Labelin Labelout LSPname 

10.0.0.1        10.0.0.6        Up       0  1 FF       3        - R6-to-R1

Total 1 displayed, Up 1, Down 0

Transit LSP: 0 sessions

Total 0 displayed, Up 0, Down 0

What It Means

Sample Output 1 from transit router R5 shows that at the [edit protocols mpls] hierarchy level, interface so-0/0/1 is incorrectly configured with the admin-group red statement. The so-0/0/0 interface should be configured with the admin-group red statement.

Sample Output 2 shows the steps taken to correct the configuration. The administration group has been deleted from so-0/0/1 and so-0/0/0 is now associated with the red color.

Sample Output 3 shows that LSP R1-to-R6 is established.