When performing mpls ping either with rsvp LSP's or LDP FEC's from if the router in the path is PTX10003-160C or PTX10003-80C running with Juniper EVO Software, ping may not succeed.

For Ex:

In the below topology

R1---R2---R3---R4---R5

MPLS RSVP is established from R1 to R5

If mpls rsvp ping is executed for the LSP between R1 and R5, ping will fail

root@lab# run ping mpls rsvp R3R5-1 

May 30 12:27:06


Warning: License key missing; requires 'rsvp' license


.....

--- lsping statistics ---

5 packets transmitted, 0 packets received, 100% packet loss


[edit]

root@lab#

mpls rsvp or mpls ldp ping will fail and 100% packet loss will be noticed.

To make the mpls rsvp or mpls ldp to work with PTX10003-160C or PTX10003-80C, the loopback address on the router must be configured with 127.0.0.1

For Ex:

In the below topology

R1---R2---R3---R4---R5

MPLS RSVP is established from R1 to R5

If mpls rsvp ping is executed for the LSP between R1 and R5, ping will fail

root@lab# run ping mpls rsvp R3R5-1 

May 30 12:27:06


Warning: License key missing; requires 'rsvp' license


.....

--- lsping statistics ---

5 packets transmitted, 0 packets received, 100% packet loss


[edit]

root@lab#


After configuring the 127.0.0.1 on the R5 router, which is egress to the LSP, mpls ping works.


root@lab# show interfaces lo0

unit 0 {

   family inet {

       address 5.5.5.5/32;

        address 127.0.0.1/32; <<<<< This is must to configured on the PTX10003-160C and PTX10003-80C routers 

   }

   family iso {

       address 49.0001.0050.0500.5005.00;

   }

   family inet6 {

       address 2000::5:5:5:5/128;

   }

}



root@root# run ping mpls rsvp R3R5-1   

May 30 12:27:38


Warning: License key missing; requires 'rsvp' license


!!!!!

--- lsping statistics ---

5 packets transmitted, 5 packets received, 0% packet loss


[edit]

labroot@e05-32# #