here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 49905  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 120500 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 124602 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 243158 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 411129 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 503613 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 544808 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 699113 | null     | null      | null    | unlabelled |         | 0     |
 | 699114 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 699115 | v1:6     | ethernet1 | 1234::2 | 787179     |         | 0     |
 | 699116 | v1:6     | ethernet1 | 1234::2 | 787180     |         | 0     |
 | 699117 | v1:6     | ethernet1 | 1234::2 | 787181     |         | 0     |
 | 699118 | null     | null      | null    | unlabelled |         | 0     |
 | 699119 | null     | null      | null    | unlabelled |         | 0     |
 | 699120 | null     | null      | null    | unlabelled |         | 0     |
 | 699121 | null     | null      | null    | unlabelled |         | 0     |
 | 699122 | null     | null      | null    | unlabelled |         | 0     |
 | 718710 | null     | null      | null    | unlabelled |         | 0     |
 | 718711 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 718712 | v1:4     | ethernet1 | 1.1.1.2 | 524341     |         | 0     |
 | 718713 | v1:4     | ethernet1 | 1.1.1.2 | 524342     |         | 0     |
 | 718714 | v1:4     | ethernet1 | 1.1.1.2 | 524343     |         | 0     |
 | 718715 | null     | null      | null    | unlabelled |         | 0     |
 | 718716 | null     | null      | null    | unlabelled |         | 0     |
 | 718717 | null     | null      | null    | unlabelled |         | 0     |
 | 718718 | null     | null      | null    | unlabelled |         | 0     |
 | 718719 | null     | null      | null    | unlabelled |         | 0     |
 | 762511 | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 785197 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 957351 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r1#
r1#
here is the lib:
r2#
r2#
r2#show mpls forw
r2#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 28647  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 40328  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 113522 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 118332 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 176782 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 195898 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 226288 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 419042 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 524339 | null     | null      | null    | unlabelled |         | 0     |
 | 524340 | v1:4     | ethernet1 | 1.1.1.1 | 718711     |         | 1280  |
 | 524341 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 524342 | v1:4     | ethernet2 | 1.1.2.3 | 506654     |         | 640   |
 | 524343 | v1:4     | ethernet2 | 1.1.2.3 | 506655     |         | 640   |
 | 524344 | null     | null      | null    | unlabelled |         | 0     |
 | 524345 | null     | null      | null    | unlabelled |         | 0     |
 | 524346 | null     | null      | null    | unlabelled |         | 0     |
 | 524347 | null     | null      | null    | unlabelled |         | 0     |
 | 524348 | null     | null      | null    | unlabelled |         | 0     |
 | 541056 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 588773 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 787177 | null     | null      | null    | unlabelled |         | 0     |
 | 787178 | v1:6     | ethernet1 | 1234::1 | 699114     |         | 1280  |
 | 787179 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 787180 | v1:6     | ethernet2 | 1235::3 | 340707     |         | 640   |
 | 787181 | v1:6     | ethernet2 | 1235::3 | 340708     |         | 640   |
 | 787182 | null     | null      | null    | unlabelled |         | 0     |
 | 787183 | null     | null      | null    | unlabelled |         | 0     |
 | 787184 | null     | null      | null    | unlabelled |         | 0     |
 | 787185 | null     | null      | null    | unlabelled |         | 0     |
 | 787186 | null     | null      | null    | unlabelled |         | 0     |
 | 802582 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 891896 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 84334  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 191889 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 205363 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 340704 | null     | null      | null    | unlabelled |         | 0     |
 | 340705 | v1:6     | ethernet1 | 1235::2 | 787178     |         | 640   |
 | 340706 | v1:6     | ethernet1 | 1235::2 | 787179     |         | 640   |
 | 340707 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 340708 | v1:6     | ethernet2 | 1236::4 | 358491     |         | 1280  |
 | 340709 | null     | null      | null    | unlabelled |         | 0     |
 | 340710 | null     | null      | null    | unlabelled |         | 0     |
 | 340711 | null     | null      | null    | unlabelled |         | 0     |
 | 340712 | null     | null      | null    | unlabelled |         | 0     |
 | 340713 | null     | null      | null    | unlabelled |         | 0     |
 | 359804 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 411820 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 506651 | null     | null      | null    | unlabelled |         | 0     |
 | 506652 | v1:4     | ethernet1 | 1.1.2.2 | 524340     |         | 640   |
 | 506653 | v1:4     | ethernet1 | 1.1.2.2 | 524341     |         | 640   |
 | 506654 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 506655 | v1:4     | ethernet2 | 1.1.3.4 | 780499     |         | 1280  |
 | 506656 | null     | null      | null    | unlabelled |         | 0     |
 | 506657 | null     | null      | null    | unlabelled |         | 0     |
 | 506658 | null     | null      | null    | unlabelled |         | 0     |
 | 506659 | null     | null      | null    | unlabelled |         | 0     |
 | 506660 | null     | null      | null    | unlabelled |         | 0     |
 | 541648 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 587142 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 618804 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 674493 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 814827 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 900865 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 948641 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 204259 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 286956 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 358487 | null     | null      | null    | unlabelled |         | 0     |
 | 358488 | v1:6     | ethernet1 | 1236::3 | 340705     |         | 0     |
 | 358489 | v1:6     | ethernet1 | 1236::3 | 340706     |         | 0     |
 | 358490 | v1:6     | ethernet1 | 1236::3 | 340707     |         | 0     |
 | 358491 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 358492 | null     | null      | null    | unlabelled |         | 0     |
 | 358493 | null     | null      | null    | unlabelled |         | 0     |
 | 358494 | null     | null      | null    | unlabelled |         | 0     |
 | 358495 | null     | null      | null    | unlabelled |         | 0     |
 | 358496 | null     | null      | null    | unlabelled |         | 0     |
 | 362732 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 414907 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 432628 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 606746 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 780495 | null     | null      | null    | unlabelled |         | 0     |
 | 780496 | v1:4     | ethernet1 | 1.1.3.3 | 506652     |         | 0     |
 | 780497 | v1:4     | ethernet1 | 1.1.3.3 | 506653     |         | 0     |
 | 780498 | v1:4     | ethernet1 | 1.1.3.3 | 506654     |         | 0     |
 | 780499 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 780500 | null     | null      | null    | unlabelled |         | 0     |
 | 780501 | null     | null      | null    | unlabelled |         | 0     |
 | 780502 | null     | null      | null    | unlabelled |         | 0     |
 | 780503 | null     | null      | null    | unlabelled |         | 0     |
 | 780504 | null     | null      | null    | unlabelled |         | 0     |
 | 844466 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 859999 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 866237 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 990513 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#