here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 58718  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 224909 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 243628 | null     | null      | null    | unlabelled |         | 0     |
 | 243629 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 243630 | v1:6     | ethernet1 | 1234::2 | 177541     |         | 0     |
 | 243631 | v1:6     | ethernet1 | 1234::2 | 177542     |         | 0     |
 | 243632 | v1:6     | ethernet1 | 1234::2 | 177543     |         | 0     |
 | 243633 | null     | null      | null    | unlabelled |         | 0     |
 | 243634 | null     | null      | null    | unlabelled |         | 0     |
 | 243635 | null     | null      | null    | unlabelled |         | 0     |
 | 243636 | null     | null      | null    | unlabelled |         | 0     |
 | 243637 | null     | null      | null    | unlabelled |         | 0     |
 | 373485 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 456725 | null     | null      | null    | unlabelled |         | 0     |
 | 456726 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 456727 | v1:4     | ethernet1 | 1.1.1.2 | 391112     |         | 0     |
 | 456728 | v1:4     | ethernet1 | 1.1.1.2 | 391113     |         | 0     |
 | 456729 | v1:4     | ethernet1 | 1.1.1.2 | 391114     |         | 0     |
 | 456730 | null     | null      | null    | unlabelled |         | 0     |
 | 456731 | null     | null      | null    | unlabelled |         | 0     |
 | 456732 | null     | null      | null    | unlabelled |         | 0     |
 | 456733 | null     | null      | null    | unlabelled |         | 0     |
 | 456734 | null     | null      | null    | unlabelled |         | 0     |
 | 632097 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 829271 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 833523 | v1:6     | ethernet1 | 1234::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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 13085   | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 112699  | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 177539  | null     | null      | null    | unlabelled |         | 0     |
 | 177540  | v1:6     | ethernet1 | 1234::1 | 243629     |         | 1280  |
 | 177541  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 177542  | v1:6     | ethernet2 | 1235::3 | 52094      |         | 640   |
 | 177543  | v1:6     | ethernet2 | 1235::3 | 52095      |         | 640   |
 | 177544  | null     | null      | null    | unlabelled |         | 0     |
 | 177545  | null     | null      | null    | unlabelled |         | 0     |
 | 177546  | null     | null      | null    | unlabelled |         | 0     |
 | 177547  | null     | null      | null    | unlabelled |         | 0     |
 | 177548  | null     | null      | null    | unlabelled |         | 0     |
 | 273310  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 285825  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 391110  | null     | null      | null    | unlabelled |         | 0     |
 | 391111  | v1:4     | ethernet1 | 1.1.1.1 | 456726     |         | 1280  |
 | 391112  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 391113  | v1:4     | ethernet2 | 1.1.2.3 | 196531     |         | 640   |
 | 391114  | v1:4     | ethernet2 | 1.1.2.3 | 196532     |         | 640   |
 | 391115  | null     | null      | null    | unlabelled |         | 0     |
 | 391116  | null     | null      | null    | unlabelled |         | 0     |
 | 391117  | null     | null      | null    | unlabelled |         | 0     |
 | 391118  | null     | null      | null    | unlabelled |         | 0     |
 | 391119  | null     | null      | null    | unlabelled |         | 0     |
 | 437778  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 882323  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 968546  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1032613 | tester: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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 52091  | null     | null      | null    | unlabelled |         | 0     |
 | 52092  | v1:6     | ethernet1 | 1235::2 | 177540     |         | 640   |
 | 52093  | v1:6     | ethernet1 | 1235::2 | 177541     |         | 640   |
 | 52094  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 52095  | v1:6     | ethernet2 | 1236::4 | 508088     |         | 1280  |
 | 52096  | null     | null      | null    | unlabelled |         | 0     |
 | 52097  | null     | null      | null    | unlabelled |         | 0     |
 | 52098  | null     | null      | null    | unlabelled |         | 0     |
 | 52099  | null     | null      | null    | unlabelled |         | 0     |
 | 52100  | null     | null      | null    | unlabelled |         | 0     |
 | 71974  | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 196432 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 196528 | null     | null      | null    | unlabelled |         | 0     |
 | 196529 | v1:4     | ethernet1 | 1.1.2.2 | 391111     |         | 640   |
 | 196530 | v1:4     | ethernet1 | 1.1.2.2 | 391112     |         | 640   |
 | 196531 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 196532 | v1:4     | ethernet2 | 1.1.3.4 | 4673       |         | 1280  |
 | 196533 | null     | null      | null    | unlabelled |         | 0     |
 | 196534 | null     | null      | null    | unlabelled |         | 0     |
 | 196535 | null     | null      | null    | unlabelled |         | 0     |
 | 196536 | null     | null      | null    | unlabelled |         | 0     |
 | 196537 | null     | null      | null    | unlabelled |         | 0     |
 | 237359 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 292666 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 653413 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 670116 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 840981 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 863861 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 4669   | null     | null      | null    | unlabelled |         | 0     |
 | 4670   | v1:4     | ethernet1 | 1.1.3.3 | 196529     |         | 0     |
 | 4671   | v1:4     | ethernet1 | 1.1.3.3 | 196530     |         | 0     |
 | 4672   | v1:4     | ethernet1 | 1.1.3.3 | 196531     |         | 0     |
 | 4673   | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 4674   | null     | null      | null    | unlabelled |         | 0     |
 | 4675   | null     | null      | null    | unlabelled |         | 0     |
 | 4676   | null     | null      | null    | unlabelled |         | 0     |
 | 4677   | null     | null      | null    | unlabelled |         | 0     |
 | 4678   | null     | null      | null    | unlabelled |         | 0     |
 | 148848 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 324572 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 370281 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 375823 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 508084 | null     | null      | null    | unlabelled |         | 0     |
 | 508085 | v1:6     | ethernet1 | 1236::3 | 52092      |         | 0     |
 | 508086 | v1:6     | ethernet1 | 1236::3 | 52093      |         | 0     |
 | 508087 | v1:6     | ethernet1 | 1236::3 | 52094      |         | 0     |
 | 508088 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 508089 | null     | null      | null    | unlabelled |         | 0     |
 | 508090 | null     | null      | null    | unlabelled |         | 0     |
 | 508091 | null     | null      | null    | unlabelled |         | 0     |
 | 508092 | null     | null      | null    | unlabelled |         | 0     |
 | 508093 | null     | null      | null    | unlabelled |         | 0     |
 | 642874 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 693162 | tester:6 | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#