here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 18033   | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 37493   | null     | null      | null    | unlabelled |         | 0     |
 | 37494   | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 37495   | v1:6     | ethernet1 | 1234::2 | 802018     |         | 0     |
 | 37496   | v1:6     | ethernet1 | 1234::2 | 802019     |         | 0     |
 | 37497   | v1:6     | ethernet1 | 1234::2 | 802020     |         | 0     |
 | 37498   | null     | null      | null    | unlabelled |         | 0     |
 | 37499   | null     | null      | null    | unlabelled |         | 0     |
 | 37500   | null     | null      | null    | unlabelled |         | 0     |
 | 37501   | null     | null      | null    | unlabelled |         | 0     |
 | 37502   | null     | null      | null    | unlabelled |         | 0     |
 | 83523   | null     | null      | null    | unlabelled |         | 0     |
 | 83524   | v1:4     | null      | null    | unlabelled | local   | 2112  |
 | 83525   | v1:4     | ethernet1 | 1.1.1.2 | 812188     |         | 0     |
 | 83526   | v1:4     | ethernet1 | 1.1.1.2 | 812189     |         | 0     |
 | 83527   | v1:4     | ethernet1 | 1.1.1.2 | 812190     |         | 0     |
 | 83528   | null     | null      | null    | unlabelled |         | 0     |
 | 83529   | null     | null      | null    | unlabelled |         | 0     |
 | 83530   | null     | null      | null    | unlabelled |         | 0     |
 | 83531   | null     | null      | null    | unlabelled |         | 0     |
 | 83532   | null     | null      | null    | unlabelled |         | 0     |
 | 92232   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 309556  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 584145  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 691754  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1008532 | v1:4     | null      | null    | unlabelled | local   | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r1#
r1#
here is the lib:
r2#
r2#
r2#show mpls forw
r2#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 182433  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 334868  | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 563013  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 802016  | null     | null      | null    | unlabelled |         | 0     |
 | 802017  | v1:6     | ethernet1 | 1234::1 | 37494      |         | 1280  |
 | 802018  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 802019  | v1:6     | ethernet2 | 1235::3 | 818079     |         | 640   |
 | 802020  | v1:6     | ethernet2 | 1235::3 | 818080     |         | 640   |
 | 802021  | null     | null      | null    | unlabelled |         | 0     |
 | 802022  | null     | null      | null    | unlabelled |         | 0     |
 | 802023  | null     | null      | null    | unlabelled |         | 0     |
 | 802024  | null     | null      | null    | unlabelled |         | 0     |
 | 802025  | null     | null      | null    | unlabelled |         | 0     |
 | 812186  | null     | null      | null    | unlabelled |         | 0     |
 | 812187  | v1:4     | ethernet1 | 1.1.1.1 | 83524      |         | 1280  |
 | 812188  | v1:4     | null      | null    | unlabelled | local   | 2112  |
 | 812189  | v1:4     | ethernet2 | 1.1.2.3 | 616330     |         | 640   |
 | 812190  | v1:4     | ethernet2 | 1.1.2.3 | 616331     |         | 640   |
 | 812191  | null     | null      | null    | unlabelled |         | 0     |
 | 812192  | null     | null      | null    | unlabelled |         | 0     |
 | 812193  | null     | null      | null    | unlabelled |         | 0     |
 | 812194  | null     | null      | null    | unlabelled |         | 0     |
 | 812195  | null     | null      | null    | unlabelled |         | 0     |
 | 912886  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 953654  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 958932  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 1018589 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 1030567 | tester:4 | null      | null    | unlabelled | local   | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r2#
r2#
here is the lib:
r3#
r3#
r3#show mpls forw
r3#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 163108 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 255255 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 325849 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 445430 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 584770 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 616327 | null     | null      | null    | unlabelled |         | 0     |
 | 616328 | v1:4     | ethernet1 | 1.1.2.2 | 812187     |         | 640   |
 | 616329 | v1:4     | ethernet1 | 1.1.2.2 | 812188     |         | 640   |
 | 616330 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 616331 | v1:4     | ethernet2 | 1.1.3.4 | 529423     |         | 1280  |
 | 616332 | null     | null      | null    | unlabelled |         | 0     |
 | 616333 | null     | null      | null    | unlabelled |         | 0     |
 | 616334 | null     | null      | null    | unlabelled |         | 0     |
 | 616335 | null     | null      | null    | unlabelled |         | 0     |
 | 616336 | null     | null      | null    | unlabelled |         | 0     |
 | 653143 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 727642 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 818076 | null     | null      | null    | unlabelled |         | 0     |
 | 818077 | v1:6     | ethernet1 | 1235::2 | 802017     |         | 640   |
 | 818078 | v1:6     | ethernet1 | 1235::2 | 802018     |         | 640   |
 | 818079 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 818080 | v1:6     | ethernet2 | 1236::4 | 274718     |         | 1280  |
 | 818081 | null     | null      | null    | unlabelled |         | 0     |
 | 818082 | null     | null      | null    | unlabelled |         | 0     |
 | 818083 | null     | null      | null    | unlabelled |         | 0     |
 | 818084 | null     | null      | null    | unlabelled |         | 0     |
 | 818085 | null     | null      | null    | unlabelled |         | 0     |
 | 962867 | v1:4     | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r3#
r3#
here is the lib:
r4#
r4#
r4#show mpls forw
r4#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 274714 | null     | null      | null    | unlabelled |         | 0     |
 | 274715 | v1:6     | ethernet1 | 1236::3 | 818077     |         | 0     |
 | 274716 | v1:6     | ethernet1 | 1236::3 | 818078     |         | 0     |
 | 274717 | v1:6     | ethernet1 | 1236::3 | 818079     |         | 0     |
 | 274718 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 274719 | null     | null      | null    | unlabelled |         | 0     |
 | 274720 | null     | null      | null    | unlabelled |         | 0     |
 | 274721 | null     | null      | null    | unlabelled |         | 0     |
 | 274722 | null     | null      | null    | unlabelled |         | 0     |
 | 274723 | null     | null      | null    | unlabelled |         | 0     |
 | 286177 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 314263 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 529419 | null     | null      | null    | unlabelled |         | 0     |
 | 529420 | v1:4     | ethernet1 | 1.1.3.3 | 616328     |         | 0     |
 | 529421 | v1:4     | ethernet1 | 1.1.3.3 | 616329     |         | 0     |
 | 529422 | v1:4     | ethernet1 | 1.1.3.3 | 616330     |         | 0     |
 | 529423 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 529424 | null     | null      | null    | unlabelled |         | 0     |
 | 529425 | null     | null      | null    | unlabelled |         | 0     |
 | 529426 | null     | null      | null    | unlabelled |         | 0     |
 | 529427 | null     | null      | null    | unlabelled |         | 0     |
 | 529428 | null     | null      | null    | unlabelled |         | 0     |
 | 559109 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 625518 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 825129 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 880962 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#