here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 64174   | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 108908  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 165685  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 186858  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 289343  | null     | null      | null    | unlabelled |         | 0     |
 | 289344  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 289345  | v1:4     | ethernet1 | 1.1.1.2 | 272518     |         | 0     |
 | 289346  | v1:4     | ethernet1 | 1.1.1.2 | 272519     |         | 0     |
 | 289347  | v1:4     | ethernet1 | 1.1.1.2 | 272520     |         | 0     |
 | 289348  | null     | null      | null    | unlabelled |         | 0     |
 | 289349  | null     | null      | null    | unlabelled |         | 0     |
 | 289350  | null     | null      | null    | unlabelled |         | 0     |
 | 289351  | null     | null      | null    | unlabelled |         | 0     |
 | 289352  | null     | null      | null    | unlabelled |         | 0     |
 | 289969  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 742139  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 756944  | null     | null      | null    | unlabelled |         | 0     |
 | 756945  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 756946  | v1:6     | ethernet1 | 1234::2 | 81429      |         | 0     |
 | 756947  | v1:6     | ethernet1 | 1234::2 | 81430      |         | 0     |
 | 756948  | v1:6     | ethernet1 | 1234::2 | 81431      |         | 0     |
 | 756949  | null     | null      | null    | unlabelled |         | 0     |
 | 756950  | null     | null      | null    | unlabelled |         | 0     |
 | 756951  | null     | null      | null    | unlabelled |         | 0     |
 | 756952  | null     | null      | null    | unlabelled |         | 0     |
 | 756953  | null     | null      | null    | unlabelled |         | 0     |
 | 825396  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 937962  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 938925  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1014301 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 81427   | null     | null      | null    | unlabelled |         | 0     |
 | 81428   | v1:6     | ethernet1 | 1234::1 | 756945     |         | 1280  |
 | 81429   | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 81430   | v1:6     | ethernet2 | 1235::3 | 752998     |         | 640   |
 | 81431   | v1:6     | ethernet2 | 1235::3 | 752999     |         | 640   |
 | 81432   | null     | null      | null    | unlabelled |         | 0     |
 | 81433   | null     | null      | null    | unlabelled |         | 0     |
 | 81434   | null     | null      | null    | unlabelled |         | 0     |
 | 81435   | null     | null      | null    | unlabelled |         | 0     |
 | 81436   | null     | null      | null    | unlabelled |         | 0     |
 | 156810  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 216549  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 252688  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 272516  | null     | null      | null    | unlabelled |         | 0     |
 | 272517  | v1:4     | ethernet1 | 1.1.1.1 | 289344     |         | 1280  |
 | 272518  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 272519  | v1:4     | ethernet2 | 1.1.2.3 | 351691     |         | 640   |
 | 272520  | v1:4     | ethernet2 | 1.1.2.3 | 351692     |         | 640   |
 | 272521  | null     | null      | null    | unlabelled |         | 0     |
 | 272522  | null     | null      | null    | unlabelled |         | 0     |
 | 272523  | null     | null      | null    | unlabelled |         | 0     |
 | 272524  | null     | null      | null    | unlabelled |         | 0     |
 | 272525  | null     | null      | null    | unlabelled |         | 0     |
 | 409714  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 588305  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 620012  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 796394  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 905292  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 916549  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 983877  | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 996221  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1002920 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r2#
r2#
here is the lib:
r3#
r3#
r3#show mpls forw
r3#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 138703 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 230628 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 256209 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 261938 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 263423 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 287378 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 351688 | null     | null      | null    | unlabelled |         | 0     |
 | 351689 | v1:4     | ethernet1 | 1.1.2.2 | 272517     |         | 640   |
 | 351690 | v1:4     | ethernet1 | 1.1.2.2 | 272518     |         | 640   |
 | 351691 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 351692 | v1:4     | ethernet2 | 1.1.3.4 | 943697     |         | 1280  |
 | 351693 | null     | null      | null    | unlabelled |         | 0     |
 | 351694 | null     | null      | null    | unlabelled |         | 0     |
 | 351695 | null     | null      | null    | unlabelled |         | 0     |
 | 351696 | null     | null      | null    | unlabelled |         | 0     |
 | 351697 | null     | null      | null    | unlabelled |         | 0     |
 | 356942 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 410732 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 584479 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 656973 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 752995 | null     | null      | null    | unlabelled |         | 0     |
 | 752996 | v1:6     | ethernet1 | 1235::2 | 81428      |         | 640   |
 | 752997 | v1:6     | ethernet1 | 1235::2 | 81429      |         | 640   |
 | 752998 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 752999 | v1:6     | ethernet2 | 1236::4 | 229325     |         | 1280  |
 | 753000 | null     | null      | null    | unlabelled |         | 0     |
 | 753001 | null     | null      | null    | unlabelled |         | 0     |
 | 753002 | null     | null      | null    | unlabelled |         | 0     |
 | 753003 | null     | null      | null    | unlabelled |         | 0     |
 | 753004 | null     | null      | null    | unlabelled |         | 0     |
 | 865451 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 970441 | v1:6     | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 30508   | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 88366   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 100375  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 108176  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 229321  | null     | null      | null    | unlabelled |         | 0     |
 | 229322  | v1:6     | ethernet1 | 1236::3 | 752996     |         | 0     |
 | 229323  | v1:6     | ethernet1 | 1236::3 | 752997     |         | 0     |
 | 229324  | v1:6     | ethernet1 | 1236::3 | 752998     |         | 0     |
 | 229325  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 229326  | null     | null      | null    | unlabelled |         | 0     |
 | 229327  | null     | null      | null    | unlabelled |         | 0     |
 | 229328  | null     | null      | null    | unlabelled |         | 0     |
 | 229329  | null     | null      | null    | unlabelled |         | 0     |
 | 229330  | null     | null      | null    | unlabelled |         | 0     |
 | 319823  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 434101  | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 478969  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 801890  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 941854  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 943693  | null     | null      | null    | unlabelled |         | 0     |
 | 943694  | v1:4     | ethernet1 | 1.1.3.3 | 351689     |         | 0     |
 | 943695  | v1:4     | ethernet1 | 1.1.3.3 | 351690     |         | 0     |
 | 943696  | v1:4     | ethernet1 | 1.1.3.3 | 351691     |         | 0     |
 | 943697  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 943698  | null     | null      | null    | unlabelled |         | 0     |
 | 943699  | null     | null      | null    | unlabelled |         | 0     |
 | 943700  | null     | null      | null    | unlabelled |         | 0     |
 | 943701  | null     | null      | null    | unlabelled |         | 0     |
 | 943702  | null     | null      | null    | unlabelled |         | 0     |
 | 1013820 | tester:6 | null      | null    | unlabelled | local   | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r4#
r4#