here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 48958   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 75429   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 88733   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 193325  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 400207  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 408150  | null     | null      | null    | unlabelled |         | 0     |
 | 408151  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 408152  | v1:4     | ethernet1 | 1.1.1.2 | 289885     |         | 0     |
 | 408153  | v1:4     | ethernet1 | 1.1.1.2 | 289886     |         | 0     |
 | 408154  | v1:4     | ethernet1 | 1.1.1.2 | 289887     |         | 0     |
 | 408155  | null     | null      | null    | unlabelled |         | 0     |
 | 408156  | null     | null      | null    | unlabelled |         | 0     |
 | 408157  | null     | null      | null    | unlabelled |         | 0     |
 | 408158  | null     | null      | null    | unlabelled |         | 0     |
 | 408159  | null     | null      | null    | unlabelled |         | 0     |
 | 438777  | null     | null      | null    | unlabelled |         | 0     |
 | 438778  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 438779  | v1:6     | ethernet1 | 1234::2 | 325734     |         | 0     |
 | 438780  | v1:6     | ethernet1 | 1234::2 | 325735     |         | 0     |
 | 438781  | v1:6     | ethernet1 | 1234::2 | 325736     |         | 0     |
 | 438782  | null     | null      | null    | unlabelled |         | 0     |
 | 438783  | null     | null      | null    | unlabelled |         | 0     |
 | 438784  | null     | null      | null    | unlabelled |         | 0     |
 | 438785  | null     | null      | null    | unlabelled |         | 0     |
 | 438786  | null     | null      | null    | unlabelled |         | 0     |
 | 793643  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 856947  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 904057  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 928156  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 1019339 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 31285  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 98153  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 256308 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 279796 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 289883 | null     | null      | null    | unlabelled |         | 0     |
 | 289884 | v1:4     | ethernet1 | 1.1.1.1 | 408151     |         | 1280  |
 | 289885 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 289886 | v1:4     | ethernet2 | 1.1.2.3 | 920061     |         | 640   |
 | 289887 | v1:4     | ethernet2 | 1.1.2.3 | 920062     |         | 640   |
 | 289888 | null     | null      | null    | unlabelled |         | 0     |
 | 289889 | null     | null      | null    | unlabelled |         | 0     |
 | 289890 | null     | null      | null    | unlabelled |         | 0     |
 | 289891 | null     | null      | null    | unlabelled |         | 0     |
 | 289892 | null     | null      | null    | unlabelled |         | 0     |
 | 325732 | null     | null      | null    | unlabelled |         | 0     |
 | 325733 | v1:6     | ethernet1 | 1234::1 | 438778     |         | 1280  |
 | 325734 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 325735 | v1:6     | ethernet2 | 1235::3 | 62463      |         | 640   |
 | 325736 | v1:6     | ethernet2 | 1235::3 | 62464      |         | 640   |
 | 325737 | null     | null      | null    | unlabelled |         | 0     |
 | 325738 | null     | null      | null    | unlabelled |         | 0     |
 | 325739 | null     | null      | null    | unlabelled |         | 0     |
 | 325740 | null     | null      | null    | unlabelled |         | 0     |
 | 325741 | null     | null      | null    | unlabelled |         | 0     |
 | 352111 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 369616 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 437309 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 519437 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 554506 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 779412 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 819539 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 824581 | v1:4     | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 62460  | null     | null      | null    | unlabelled |         | 0     |
 | 62461  | v1:6     | ethernet1 | 1235::2 | 325733     |         | 640   |
 | 62462  | v1:6     | ethernet1 | 1235::2 | 325734     |         | 640   |
 | 62463  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 62464  | v1:6     | ethernet2 | 1236::4 | 513748     |         | 1280  |
 | 62465  | null     | null      | null    | unlabelled |         | 0     |
 | 62466  | null     | null      | null    | unlabelled |         | 0     |
 | 62467  | null     | null      | null    | unlabelled |         | 0     |
 | 62468  | null     | null      | null    | unlabelled |         | 0     |
 | 62469  | null     | null      | null    | unlabelled |         | 0     |
 | 65477  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 88459  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 171966 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 193367 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 266287 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 393742 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 753834 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 832896 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 847628 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 851643 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 915015 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 920058 | null     | null      | null    | unlabelled |         | 0     |
 | 920059 | v1:4     | ethernet1 | 1.1.2.2 | 289884     |         | 640   |
 | 920060 | v1:4     | ethernet1 | 1.1.2.2 | 289885     |         | 640   |
 | 920061 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 920062 | v1:4     | ethernet2 | 1.1.3.4 | 691694     |         | 1280  |
 | 920063 | null     | null      | null    | unlabelled |         | 0     |
 | 920064 | null     | null      | null    | unlabelled |         | 0     |
 | 920065 | null     | null      | null    | unlabelled |         | 0     |
 | 920066 | null     | null      | null    | unlabelled |         | 0     |
 | 920067 | null     | null      | null    | unlabelled |         | 0     |
 | 975349 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 111223 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 161569 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 311580 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 374524 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 510686 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 513744 | null     | null      | null    | unlabelled |         | 0     |
 | 513745 | v1:6     | ethernet1 | 1236::3 | 62461      |         | 0     |
 | 513746 | v1:6     | ethernet1 | 1236::3 | 62462      |         | 0     |
 | 513747 | v1:6     | ethernet1 | 1236::3 | 62463      |         | 0     |
 | 513748 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 513749 | null     | null      | null    | unlabelled |         | 0     |
 | 513750 | null     | null      | null    | unlabelled |         | 0     |
 | 513751 | null     | null      | null    | unlabelled |         | 0     |
 | 513752 | null     | null      | null    | unlabelled |         | 0     |
 | 513753 | null     | null      | null    | unlabelled |         | 0     |
 | 641649 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 691690 | null     | null      | null    | unlabelled |         | 0     |
 | 691691 | v1:4     | ethernet1 | 1.1.3.3 | 920059     |         | 0     |
 | 691692 | v1:4     | ethernet1 | 1.1.3.3 | 920060     |         | 0     |
 | 691693 | v1:4     | ethernet1 | 1.1.3.3 | 920061     |         | 0     |
 | 691694 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 691695 | null     | null      | null    | unlabelled |         | 0     |
 | 691696 | null     | null      | null    | unlabelled |         | 0     |
 | 691697 | null     | null      | null    | unlabelled |         | 0     |
 | 691698 | null     | null      | null    | unlabelled |         | 0     |
 | 691699 | null     | null      | null    | unlabelled |         | 0     |
 | 710583 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 923644 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 938028 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 991683 | tester:6 | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#