here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 248460 | null     | null      | null    | unlabelled |         | 0     |
 | 248461 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 248462 | v1:4     | ethernet1 | 1.1.1.2 | 341418     |         | 0     |
 | 248463 | v1:4     | ethernet1 | 1.1.1.2 | 341419     |         | 0     |
 | 248464 | v1:4     | ethernet1 | 1.1.1.2 | 341420     |         | 0     |
 | 248465 | null     | null      | null    | unlabelled |         | 0     |
 | 248466 | null     | null      | null    | unlabelled |         | 0     |
 | 248467 | null     | null      | null    | unlabelled |         | 0     |
 | 248468 | null     | null      | null    | unlabelled |         | 0     |
 | 248469 | null     | null      | null    | unlabelled |         | 0     |
 | 269840 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 356626 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 481442 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 539015 | null     | null      | null    | unlabelled |         | 0     |
 | 539016 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 539017 | v1:6     | ethernet1 | 1234::2 | 158561     |         | 0     |
 | 539018 | v1:6     | ethernet1 | 1234::2 | 158562     |         | 0     |
 | 539019 | v1:6     | ethernet1 | 1234::2 | 158563     |         | 0     |
 | 539020 | null     | null      | null    | unlabelled |         | 0     |
 | 539021 | null     | null      | null    | unlabelled |         | 0     |
 | 539022 | null     | null      | null    | unlabelled |         | 0     |
 | 539023 | null     | null      | null    | unlabelled |         | 0     |
 | 539024 | null     | null      | null    | unlabelled |         | 0     |
 | 544955 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 574150 | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 905232 | v1:6     | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 57053   | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 78593   | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 145757  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 158559  | null     | null      | null    | unlabelled |         | 0     |
 | 158560  | v1:6     | ethernet1 | 1234::1 | 539016     |         | 1280  |
 | 158561  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 158562  | v1:6     | ethernet2 | 1235::3 | 335451     |         | 640   |
 | 158563  | v1:6     | ethernet2 | 1235::3 | 335452     |         | 640   |
 | 158564  | null     | null      | null    | unlabelled |         | 0     |
 | 158565  | null     | null      | null    | unlabelled |         | 0     |
 | 158566  | null     | null      | null    | unlabelled |         | 0     |
 | 158567  | null     | null      | null    | unlabelled |         | 0     |
 | 158568  | null     | null      | null    | unlabelled |         | 0     |
 | 252036  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 341416  | null     | null      | null    | unlabelled |         | 0     |
 | 341417  | v1:4     | ethernet1 | 1.1.1.1 | 248461     |         | 1280  |
 | 341418  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 341419  | v1:4     | ethernet2 | 1.1.2.3 | 532715     |         | 640   |
 | 341420  | v1:4     | ethernet2 | 1.1.2.3 | 532716     |         | 640   |
 | 341421  | null     | null      | null    | unlabelled |         | 0     |
 | 341422  | null     | null      | null    | unlabelled |         | 0     |
 | 341423  | null     | null      | null    | unlabelled |         | 0     |
 | 341424  | null     | null      | null    | unlabelled |         | 0     |
 | 341425  | null     | null      | null    | unlabelled |         | 0     |
 | 379254  | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 460657  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 911735  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1019000 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 30859   | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 320812  | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 335448  | null     | null      | null    | unlabelled |         | 0     |
 | 335449  | v1:6     | ethernet1 | 1235::2 | 158560     |         | 640   |
 | 335450  | v1:6     | ethernet1 | 1235::2 | 158561     |         | 640   |
 | 335451  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 335452  | v1:6     | ethernet2 | 1236::4 | 239542     |         | 1280  |
 | 335453  | null     | null      | null    | unlabelled |         | 0     |
 | 335454  | null     | null      | null    | unlabelled |         | 0     |
 | 335455  | null     | null      | null    | unlabelled |         | 0     |
 | 335456  | null     | null      | null    | unlabelled |         | 0     |
 | 335457  | null     | null      | null    | unlabelled |         | 0     |
 | 350610  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 436111  | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 502484  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 532712  | null     | null      | null    | unlabelled |         | 0     |
 | 532713  | v1:4     | ethernet1 | 1.1.2.2 | 341417     |         | 640   |
 | 532714  | v1:4     | ethernet1 | 1.1.2.2 | 341418     |         | 640   |
 | 532715  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 532716  | v1:4     | ethernet2 | 1.1.3.4 | 847791     |         | 1280  |
 | 532717  | null     | null      | null    | unlabelled |         | 0     |
 | 532718  | null     | null      | null    | unlabelled |         | 0     |
 | 532719  | null     | null      | null    | unlabelled |         | 0     |
 | 532720  | null     | null      | null    | unlabelled |         | 0     |
 | 532721  | null     | null      | null    | unlabelled |         | 0     |
 | 552360  | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 648303  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1044618 | tester: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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 118347 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 239538 | null     | null      | null    | unlabelled |         | 0     |
 | 239539 | v1:6     | ethernet1 | 1236::3 | 335449     |         | 0     |
 | 239540 | v1:6     | ethernet1 | 1236::3 | 335450     |         | 0     |
 | 239541 | v1:6     | ethernet1 | 1236::3 | 335451     |         | 0     |
 | 239542 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 239543 | null     | null      | null    | unlabelled |         | 0     |
 | 239544 | null     | null      | null    | unlabelled |         | 0     |
 | 239545 | null     | null      | null    | unlabelled |         | 0     |
 | 239546 | null     | null      | null    | unlabelled |         | 0     |
 | 239547 | null     | null      | null    | unlabelled |         | 0     |
 | 347124 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 456407 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 699338 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 847787 | null     | null      | null    | unlabelled |         | 0     |
 | 847788 | v1:4     | ethernet1 | 1.1.3.3 | 532713     |         | 0     |
 | 847789 | v1:4     | ethernet1 | 1.1.3.3 | 532714     |         | 0     |
 | 847790 | v1:4     | ethernet1 | 1.1.3.3 | 532715     |         | 0     |
 | 847791 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 847792 | null     | null      | null    | unlabelled |         | 0     |
 | 847793 | null     | null      | null    | unlabelled |         | 0     |
 | 847794 | null     | null      | null    | unlabelled |         | 0     |
 | 847795 | null     | null      | null    | unlabelled |         | 0     |
 | 847796 | null     | null      | null    | unlabelled |         | 0     |
 | 882482 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 998897 | v1:4     | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#