here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 21190   | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 421049  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 542228  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 553872  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 590325  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 755727  | null     | null      | null    | unlabelled |         | 0     |
 | 755728  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 755729  | v1:4     | ethernet1 | 1.1.1.2 | 602287     |         | 0     |
 | 755730  | v1:4     | ethernet1 | 1.1.1.2 | 602288     |         | 0     |
 | 755731  | v1:4     | ethernet1 | 1.1.1.2 | 602289     |         | 0     |
 | 755732  | null     | null      | null    | unlabelled |         | 0     |
 | 755733  | null     | null      | null    | unlabelled |         | 0     |
 | 755734  | null     | null      | null    | unlabelled |         | 0     |
 | 755735  | null     | null      | null    | unlabelled |         | 0     |
 | 755736  | null     | null      | null    | unlabelled |         | 0     |
 | 965753  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 1029801 | null     | null      | null    | unlabelled |         | 0     |
 | 1029802 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 1029803 | v1:6     | ethernet1 | 1234::2 | 335987     |         | 0     |
 | 1029804 | v1:6     | ethernet1 | 1234::2 | 335988     |         | 0     |
 | 1029805 | v1:6     | ethernet1 | 1234::2 | 335989     |         | 0     |
 | 1029806 | null     | null      | null    | unlabelled |         | 0     |
 | 1029807 | null     | null      | null    | unlabelled |         | 0     |
 | 1029808 | null     | null      | null    | unlabelled |         | 0     |
 | 1029809 | null     | null      | null    | unlabelled |         | 0     |
 | 1029810 | null     | null      | null    | unlabelled |         | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r1#
r1#
here is the lib:
r2#
r2#
r2#show mpls forw
r2#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 118026 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 335985 | null     | null      | null    | unlabelled |         | 0     |
 | 335986 | v1:6     | ethernet1 | 1234::1 | 1029802    |         | 1280  |
 | 335987 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 335988 | v1:6     | ethernet2 | 1235::3 | 564956     |         | 640   |
 | 335989 | v1:6     | ethernet2 | 1235::3 | 564957     |         | 640   |
 | 335990 | null     | null      | null    | unlabelled |         | 0     |
 | 335991 | null     | null      | null    | unlabelled |         | 0     |
 | 335992 | null     | null      | null    | unlabelled |         | 0     |
 | 335993 | null     | null      | null    | unlabelled |         | 0     |
 | 335994 | null     | null      | null    | unlabelled |         | 0     |
 | 448010 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 521967 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 545873 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 602285 | null     | null      | null    | unlabelled |         | 0     |
 | 602286 | v1:4     | ethernet1 | 1.1.1.1 | 755728     |         | 1280  |
 | 602287 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 602288 | v1:4     | ethernet2 | 1.1.2.3 | 924913     |         | 640   |
 | 602289 | v1:4     | ethernet2 | 1.1.2.3 | 924914     |         | 640   |
 | 602290 | null     | null      | null    | unlabelled |         | 0     |
 | 602291 | null     | null      | null    | unlabelled |         | 0     |
 | 602292 | null     | null      | null    | unlabelled |         | 0     |
 | 602293 | null     | null      | null    | unlabelled |         | 0     |
 | 602294 | null     | null      | null    | unlabelled |         | 0     |
 | 649114 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 649964 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 870463 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 921120 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 100737  | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 394980  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 423244  | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 492185  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 548121  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 564953  | null     | null      | null    | unlabelled |         | 0     |
 | 564954  | v1:6     | ethernet1 | 1235::2 | 335986     |         | 640   |
 | 564955  | v1:6     | ethernet1 | 1235::2 | 335987     |         | 640   |
 | 564956  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 564957  | v1:6     | ethernet2 | 1236::4 | 752575     |         | 1280  |
 | 564958  | null     | null      | null    | unlabelled |         | 0     |
 | 564959  | null     | null      | null    | unlabelled |         | 0     |
 | 564960  | null     | null      | null    | unlabelled |         | 0     |
 | 564961  | null     | null      | null    | unlabelled |         | 0     |
 | 564962  | null     | null      | null    | unlabelled |         | 0     |
 | 693661  | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 924910  | null     | null      | null    | unlabelled |         | 0     |
 | 924911  | v1:4     | ethernet1 | 1.1.2.2 | 602286     |         | 640   |
 | 924912  | v1:4     | ethernet1 | 1.1.2.2 | 602287     |         | 640   |
 | 924913  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 924914  | v1:4     | ethernet2 | 1.1.3.4 | 469648     |         | 1280  |
 | 924915  | null     | null      | null    | unlabelled |         | 0     |
 | 924916  | null     | null      | null    | unlabelled |         | 0     |
 | 924917  | null     | null      | null    | unlabelled |         | 0     |
 | 924918  | null     | null      | null    | unlabelled |         | 0     |
 | 924919  | null     | null      | null    | unlabelled |         | 0     |
 | 973952  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 1034597 | v1:4     | ethernet1 | 1.1.2.2 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 9358   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 291621 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 372811 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 469644 | null     | null      | null    | unlabelled |         | 0     |
 | 469645 | v1:4     | ethernet1 | 1.1.3.3 | 924911     |         | 0     |
 | 469646 | v1:4     | ethernet1 | 1.1.3.3 | 924912     |         | 0     |
 | 469647 | v1:4     | ethernet1 | 1.1.3.3 | 924913     |         | 0     |
 | 469648 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 469649 | null     | null      | null    | unlabelled |         | 0     |
 | 469650 | null     | null      | null    | unlabelled |         | 0     |
 | 469651 | null     | null      | null    | unlabelled |         | 0     |
 | 469652 | null     | null      | null    | unlabelled |         | 0     |
 | 469653 | null     | null      | null    | unlabelled |         | 0     |
 | 567252 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 578278 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 752571 | null     | null      | null    | unlabelled |         | 0     |
 | 752572 | v1:6     | ethernet1 | 1236::3 | 564954     |         | 0     |
 | 752573 | v1:6     | ethernet1 | 1236::3 | 564955     |         | 0     |
 | 752574 | v1:6     | ethernet1 | 1236::3 | 564956     |         | 0     |
 | 752575 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 752576 | null     | null      | null    | unlabelled |         | 0     |
 | 752577 | null     | null      | null    | unlabelled |         | 0     |
 | 752578 | null     | null      | null    | unlabelled |         | 0     |
 | 752579 | null     | null      | null    | unlabelled |         | 0     |
 | 752580 | null     | null      | null    | unlabelled |         | 0     |
 | 803663 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#