[mpls-linux-general] Two LSPs on the same physical path

[Itrat R. Q. <iq...@cc...>]

Hello,

This is the scenario, I want to be able to receive the response of a ping 
using the same physical path but a different LSP. For that I did the following 
on my LSR2

./mplsadm2 -L eth0:0
./mplsadm2 -A -I gen:17:0
./mplsadm2 -A -O 0
./mplsadm2 -O 0x2 -o push:gen:18:set:eth1:ipv4:172.16.70.50

./mplsadm2 -L eth1:1
./mplsadm2 -A -I gen:19:0
./mplsadm2 -A -O 0
./mplsadm2 -O 0x2 -o push:gen:20:set:eth0:ipv4:172.16.70.11

My configuration is something like this

  PC          Ingress           LSR1        LSR2    Egress              PC
   
   |-----------|    |-----------|  |--------|  |------|  |---------------|
192.168.10.3  .2 172.16.70.1   .10 .11    .30 .31    .50 192.168.11.1   .2 
              e0    e1          e0 e1      e0  e1    e0  e1 

I can see traffic on e1 of LSR2 and e0 of Egress with labels 18 and 19 but I 
am unable to forward traffic with label 19 on to e0 of LSR2 with label 20 
using LSP1. I want to use LSP0 for icmp echo request and LSP1 for icmp echo 
response. Kindly tell me if something is wrong with my configuration on the 
above mentioned LSR.

Looking forward to your help.