here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 24831  | null     | null      | null    | unlabelled |         | 0     |
 | 24832  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 24833  | v1:6     | ethernet1 | 1234::2 | 948829     |         | 0     |
 | 24834  | v1:6     | ethernet1 | 1234::2 | 948830     |         | 0     |
 | 24835  | v1:6     | ethernet1 | 1234::2 | 948831     |         | 0     |
 | 24836  | null     | null      | null    | unlabelled |         | 0     |
 | 24837  | null     | null      | null    | unlabelled |         | 0     |
 | 24838  | null     | null      | null    | unlabelled |         | 0     |
 | 24839  | null     | null      | null    | unlabelled |         | 0     |
 | 24840  | null     | null      | null    | unlabelled |         | 0     |
 | 91090  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 144172 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 192056 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 254816 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 273695 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 369435 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 381862 | null     | null      | null    | unlabelled |         | 0     |
 | 381863 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 381864 | v1:4     | ethernet1 | 1.1.1.2 | 169856     |         | 0     |
 | 381865 | v1:4     | ethernet1 | 1.1.1.2 | 169857     |         | 0     |
 | 381866 | v1:4     | ethernet1 | 1.1.1.2 | 169858     |         | 0     |
 | 381867 | null     | null      | null    | unlabelled |         | 0     |
 | 381868 | null     | null      | null    | unlabelled |         | 0     |
 | 381869 | null     | null      | null    | unlabelled |         | 0     |
 | 381870 | null     | null      | null    | unlabelled |         | 0     |
 | 381871 | null     | null      | null    | unlabelled |         | 0     |
 | 386528 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 599724 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 882251 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 895052 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 23587  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 115050 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 148352 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 169854 | null     | null      | null    | unlabelled |         | 0     |
 | 169855 | v1:4     | ethernet1 | 1.1.1.1 | 381863     |         | 1280  |
 | 169856 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 169857 | v1:4     | ethernet2 | 1.1.2.3 | 427537     |         | 640   |
 | 169858 | v1:4     | ethernet2 | 1.1.2.3 | 427538     |         | 640   |
 | 169859 | null     | null      | null    | unlabelled |         | 0     |
 | 169860 | null     | null      | null    | unlabelled |         | 0     |
 | 169861 | null     | null      | null    | unlabelled |         | 0     |
 | 169862 | null     | null      | null    | unlabelled |         | 0     |
 | 169863 | null     | null      | null    | unlabelled |         | 0     |
 | 189080 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 402211 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 499336 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 536659 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 638677 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 735297 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 791772 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 911484 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 948827 | null     | null      | null    | unlabelled |         | 0     |
 | 948828 | v1:6     | ethernet1 | 1234::1 | 24832      |         | 1280  |
 | 948829 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 948830 | v1:6     | ethernet2 | 1235::3 | 808162     |         | 640   |
 | 948831 | v1:6     | ethernet2 | 1235::3 | 808163     |         | 640   |
 | 948832 | null     | null      | null    | unlabelled |         | 0     |
 | 948833 | null     | null      | null    | unlabelled |         | 0     |
 | 948834 | null     | null      | null    | unlabelled |         | 0     |
 | 948835 | null     | null      | null    | unlabelled |         | 0     |
 | 948836 | null     | null      | null    | unlabelled |         | 0     |
 | 969436 | v1:6     | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 41767  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 108261 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 147167 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 231902 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 330804 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 410473 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 427534 | null     | null      | null    | unlabelled |         | 0     |
 | 427535 | v1:4     | ethernet1 | 1.1.2.2 | 169855     |         | 640   |
 | 427536 | v1:4     | ethernet1 | 1.1.2.2 | 169856     |         | 640   |
 | 427537 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 427538 | v1:4     | ethernet2 | 1.1.3.4 | 913799     |         | 1280  |
 | 427539 | null     | null      | null    | unlabelled |         | 0     |
 | 427540 | null     | null      | null    | unlabelled |         | 0     |
 | 427541 | null     | null      | null    | unlabelled |         | 0     |
 | 427542 | null     | null      | null    | unlabelled |         | 0     |
 | 427543 | null     | null      | null    | unlabelled |         | 0     |
 | 511522 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 517862 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 537473 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 749805 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 808159 | null     | null      | null    | unlabelled |         | 0     |
 | 808160 | v1:6     | ethernet1 | 1235::2 | 948828     |         | 640   |
 | 808161 | v1:6     | ethernet1 | 1235::2 | 948829     |         | 640   |
 | 808162 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 808163 | v1:6     | ethernet2 | 1236::4 | 307434     |         | 1280  |
 | 808164 | null     | null      | null    | unlabelled |         | 0     |
 | 808165 | null     | null      | null    | unlabelled |         | 0     |
 | 808166 | null     | null      | null    | unlabelled |         | 0     |
 | 808167 | null     | null      | null    | unlabelled |         | 0     |
 | 808168 | null     | null      | null    | unlabelled |         | 0     |
 | 914553 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 968584 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 17423  | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 114952 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 234588 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 305184 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 307430 | null     | null      | null    | unlabelled |         | 0     |
 | 307431 | v1:6     | ethernet1 | 1236::3 | 808160     |         | 0     |
 | 307432 | v1:6     | ethernet1 | 1236::3 | 808161     |         | 0     |
 | 307433 | v1:6     | ethernet1 | 1236::3 | 808162     |         | 0     |
 | 307434 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 307435 | null     | null      | null    | unlabelled |         | 0     |
 | 307436 | null     | null      | null    | unlabelled |         | 0     |
 | 307437 | null     | null      | null    | unlabelled |         | 0     |
 | 307438 | null     | null      | null    | unlabelled |         | 0     |
 | 307439 | null     | null      | null    | unlabelled |         | 0     |
 | 432619 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 664685 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 680052 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 704915 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 715905 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 750570 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 913795 | null     | null      | null    | unlabelled |         | 0     |
 | 913796 | v1:4     | ethernet1 | 1.1.3.3 | 427535     |         | 0     |
 | 913797 | v1:4     | ethernet1 | 1.1.3.3 | 427536     |         | 0     |
 | 913798 | v1:4     | ethernet1 | 1.1.3.3 | 427537     |         | 0     |
 | 913799 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 913800 | null     | null      | null    | unlabelled |         | 0     |
 | 913801 | null     | null      | null    | unlabelled |         | 0     |
 | 913802 | null     | null      | null    | unlabelled |         | 0     |
 | 913803 | null     | null      | null    | unlabelled |         | 0     |
 | 913804 | null     | null      | null    | unlabelled |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#