here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 934    | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 28880  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 341249 | null     | null      | null    | unlabelled |         | 0     |
 | 341250 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 341251 | v1:4     | ethernet1 | 1.1.1.2 | 271677     |         | 0     |
 | 341252 | v1:4     | ethernet1 | 1.1.1.2 | 271678     |         | 0     |
 | 341253 | v1:4     | ethernet1 | 1.1.1.2 | 271679     |         | 0     |
 | 341254 | null     | null      | null    | unlabelled |         | 0     |
 | 341255 | null     | null      | null    | unlabelled |         | 0     |
 | 341256 | null     | null      | null    | unlabelled |         | 0     |
 | 341257 | null     | null      | null    | unlabelled |         | 0     |
 | 341258 | null     | null      | null    | unlabelled |         | 0     |
 | 358004 | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 509726 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 536559 | null     | null      | null    | unlabelled |         | 0     |
 | 536560 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 536561 | v1:6     | ethernet1 | 1234::2 | 672629     |         | 0     |
 | 536562 | v1:6     | ethernet1 | 1234::2 | 672630     |         | 0     |
 | 536563 | v1:6     | ethernet1 | 1234::2 | 672631     |         | 0     |
 | 536564 | null     | null      | null    | unlabelled |         | 0     |
 | 536565 | null     | null      | null    | unlabelled |         | 0     |
 | 536566 | null     | null      | null    | unlabelled |         | 0     |
 | 536567 | null     | null      | null    | unlabelled |         | 0     |
 | 536568 | null     | null      | null    | unlabelled |         | 0     |
 | 577529 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 775005 | tester:6 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 85262   | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 269177  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 271675  | null     | null      | null    | unlabelled |         | 0     |
 | 271676  | v1:4     | ethernet1 | 1.1.1.1 | 341250     |         | 1280  |
 | 271677  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 271678  | v1:4     | ethernet2 | 1.1.2.3 | 81050      |         | 640   |
 | 271679  | v1:4     | ethernet2 | 1.1.2.3 | 81051      |         | 640   |
 | 271680  | null     | null      | null    | unlabelled |         | 0     |
 | 271681  | null     | null      | null    | unlabelled |         | 0     |
 | 271682  | null     | null      | null    | unlabelled |         | 0     |
 | 271683  | null     | null      | null    | unlabelled |         | 0     |
 | 271684  | null     | null      | null    | unlabelled |         | 0     |
 | 550538  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 573168  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 662250  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 672627  | null     | null      | null    | unlabelled |         | 0     |
 | 672628  | v1:6     | ethernet1 | 1234::1 | 536560     |         | 1280  |
 | 672629  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 672630  | v1:6     | ethernet2 | 1235::3 | 243725     |         | 640   |
 | 672631  | v1:6     | ethernet2 | 1235::3 | 243726     |         | 640   |
 | 672632  | null     | null      | null    | unlabelled |         | 0     |
 | 672633  | null     | null      | null    | unlabelled |         | 0     |
 | 672634  | null     | null      | null    | unlabelled |         | 0     |
 | 672635  | null     | null      | null    | unlabelled |         | 0     |
 | 672636  | null     | null      | null    | unlabelled |         | 0     |
 | 812466  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 1033076 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 1041309 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 67461  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 81047  | null     | null      | null    | unlabelled |         | 0     |
 | 81048  | v1:4     | ethernet1 | 1.1.2.2 | 271676     |         | 640   |
 | 81049  | v1:4     | ethernet1 | 1.1.2.2 | 271677     |         | 640   |
 | 81050  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 81051  | v1:4     | ethernet2 | 1.1.3.4 | 475779     |         | 1280  |
 | 81052  | null     | null      | null    | unlabelled |         | 0     |
 | 81053  | null     | null      | null    | unlabelled |         | 0     |
 | 81054  | null     | null      | null    | unlabelled |         | 0     |
 | 81055  | null     | null      | null    | unlabelled |         | 0     |
 | 81056  | null     | null      | null    | unlabelled |         | 0     |
 | 147354 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 215746 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 243722 | null     | null      | null    | unlabelled |         | 0     |
 | 243723 | v1:6     | ethernet1 | 1235::2 | 672628     |         | 640   |
 | 243724 | v1:6     | ethernet1 | 1235::2 | 672629     |         | 640   |
 | 243725 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 243726 | v1:6     | ethernet2 | 1236::4 | 393526     |         | 1280  |
 | 243727 | null     | null      | null    | unlabelled |         | 0     |
 | 243728 | null     | null      | null    | unlabelled |         | 0     |
 | 243729 | null     | null      | null    | unlabelled |         | 0     |
 | 243730 | null     | null      | null    | unlabelled |         | 0     |
 | 243731 | null     | null      | null    | unlabelled |         | 0     |
 | 625869 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 647487 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 669738 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 901263 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 947241 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r3#
r3#
here is the lib:
r4#
r4#
r4#show mpls forw
r4#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 66203  | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 204622 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 326571 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 393522 | null     | null      | null    | unlabelled |         | 0     |
 | 393523 | v1:6     | ethernet1 | 1236::3 | 243723     |         | 0     |
 | 393524 | v1:6     | ethernet1 | 1236::3 | 243724     |         | 0     |
 | 393525 | v1:6     | ethernet1 | 1236::3 | 243725     |         | 0     |
 | 393526 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 393527 | null     | null      | null    | unlabelled |         | 0     |
 | 393528 | null     | null      | null    | unlabelled |         | 0     |
 | 393529 | null     | null      | null    | unlabelled |         | 0     |
 | 393530 | null     | null      | null    | unlabelled |         | 0     |
 | 393531 | null     | null      | null    | unlabelled |         | 0     |
 | 475775 | null     | null      | null    | unlabelled |         | 0     |
 | 475776 | v1:4     | ethernet1 | 1.1.3.3 | 81048      |         | 0     |
 | 475777 | v1:4     | ethernet1 | 1.1.3.3 | 81049      |         | 0     |
 | 475778 | v1:4     | ethernet1 | 1.1.3.3 | 81050      |         | 0     |
 | 475779 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 475780 | null     | null      | null    | unlabelled |         | 0     |
 | 475781 | null     | null      | null    | unlabelled |         | 0     |
 | 475782 | null     | null      | null    | unlabelled |         | 0     |
 | 475783 | null     | null      | null    | unlabelled |         | 0     |
 | 475784 | null     | null      | null    | unlabelled |         | 0     |
 | 512352 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 528048 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 675875 | v1:6     | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#