here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 42513  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 118628 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 185032 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 192410 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 266817 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 303078 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 374162 | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 404130 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 496170 | null     | null      | null    | unlabelled |         | 0     |
 | 496171 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 496172 | v1:4     | ethernet1 | 1.1.1.2 | 377159     |         | 0     |
 | 496173 | v1:4     | ethernet1 | 1.1.1.2 | 377160     |         | 0     |
 | 496174 | v1:4     | ethernet1 | 1.1.1.2 | 377161     |         | 0     |
 | 496175 | null     | null      | null    | unlabelled |         | 0     |
 | 496176 | null     | null      | null    | unlabelled |         | 0     |
 | 496177 | null     | null      | null    | unlabelled |         | 0     |
 | 496178 | null     | null      | null    | unlabelled |         | 0     |
 | 496179 | null     | null      | null    | unlabelled |         | 0     |
 | 607680 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 788264 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 932287 | null     | null      | null    | unlabelled |         | 0     |
 | 932288 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 932289 | v1:6     | ethernet1 | 1234::2 | 1036310    |         | 0     |
 | 932290 | v1:6     | ethernet1 | 1234::2 | 1036311    |         | 0     |
 | 932291 | v1:6     | ethernet1 | 1234::2 | 1036312    |         | 0     |
 | 932292 | null     | null      | null    | unlabelled |         | 0     |
 | 932293 | null     | null      | null    | unlabelled |         | 0     |
 | 932294 | null     | null      | null    | unlabelled |         | 0     |
 | 932295 | null     | null      | null    | unlabelled |         | 0     |
 | 932296 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 45678   | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 107867  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 148482  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 253753  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 342304  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 377157  | null     | null      | null    | unlabelled |         | 0     |
 | 377158  | v1:4     | ethernet1 | 1.1.1.1 | 496171     |         | 1280  |
 | 377159  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 377160  | v1:4     | ethernet2 | 1.1.2.3 | 169729     |         | 640   |
 | 377161  | v1:4     | ethernet2 | 1.1.2.3 | 169730     |         | 640   |
 | 377162  | null     | null      | null    | unlabelled |         | 0     |
 | 377163  | null     | null      | null    | unlabelled |         | 0     |
 | 377164  | null     | null      | null    | unlabelled |         | 0     |
 | 377165  | null     | null      | null    | unlabelled |         | 0     |
 | 377166  | null     | null      | null    | unlabelled |         | 0     |
 | 406565  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 517357  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 587930  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 599906  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 665652  | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 738273  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 827658  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 1036308 | null     | null      | null    | unlabelled |         | 0     |
 | 1036309 | v1:6     | ethernet1 | 1234::1 | 932288     |         | 1280  |
 | 1036310 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 1036311 | v1:6     | ethernet2 | 1235::3 | 488457     |         | 640   |
 | 1036312 | v1:6     | ethernet2 | 1235::3 | 488458     |         | 640   |
 | 1036313 | null     | null      | null    | unlabelled |         | 0     |
 | 1036314 | null     | null      | null    | unlabelled |         | 0     |
 | 1036315 | null     | null      | null    | unlabelled |         | 0     |
 | 1036316 | null     | null      | null    | unlabelled |         | 0     |
 | 1036317 | null     | null      | null    | unlabelled |         | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r2#
r2#
here is the lib:
r3#
r3#
r3#show mpls forw
r3#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 59570  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 89388  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 169726 | null     | null      | null    | unlabelled |         | 0     |
 | 169727 | v1:4     | ethernet1 | 1.1.2.2 | 377158     |         | 640   |
 | 169728 | v1:4     | ethernet1 | 1.1.2.2 | 377159     |         | 640   |
 | 169729 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 169730 | v1:4     | ethernet2 | 1.1.3.4 | 704716     |         | 1280  |
 | 169731 | null     | null      | null    | unlabelled |         | 0     |
 | 169732 | null     | null      | null    | unlabelled |         | 0     |
 | 169733 | null     | null      | null    | unlabelled |         | 0     |
 | 169734 | null     | null      | null    | unlabelled |         | 0     |
 | 169735 | null     | null      | null    | unlabelled |         | 0     |
 | 225901 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 472387 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 475108 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 478005 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 480975 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 488454 | null     | null      | null    | unlabelled |         | 0     |
 | 488455 | v1:6     | ethernet1 | 1235::2 | 1036309    |         | 640   |
 | 488456 | v1:6     | ethernet1 | 1235::2 | 1036310    |         | 640   |
 | 488457 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 488458 | v1:6     | ethernet2 | 1236::4 | 858982     |         | 1280  |
 | 488459 | null     | null      | null    | unlabelled |         | 0     |
 | 488460 | null     | null      | null    | unlabelled |         | 0     |
 | 488461 | null     | null      | null    | unlabelled |         | 0     |
 | 488462 | null     | null      | null    | unlabelled |         | 0     |
 | 488463 | null     | null      | null    | unlabelled |         | 0     |
 | 547202 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 605565 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 769582 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 778572 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 779321 | tester:4 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 13905  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 145164 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 318741 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 346616 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 693160 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 704712 | null     | null      | null    | unlabelled |         | 0     |
 | 704713 | v1:4     | ethernet1 | 1.1.3.3 | 169727     |         | 0     |
 | 704714 | v1:4     | ethernet1 | 1.1.3.3 | 169728     |         | 0     |
 | 704715 | v1:4     | ethernet1 | 1.1.3.3 | 169729     |         | 0     |
 | 704716 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 704717 | null     | null      | null    | unlabelled |         | 0     |
 | 704718 | null     | null      | null    | unlabelled |         | 0     |
 | 704719 | null     | null      | null    | unlabelled |         | 0     |
 | 704720 | null     | null      | null    | unlabelled |         | 0     |
 | 704721 | null     | null      | null    | unlabelled |         | 0     |
 | 759799 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 807550 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 836991 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 858978 | null     | null      | null    | unlabelled |         | 0     |
 | 858979 | v1:6     | ethernet1 | 1236::3 | 488455     |         | 0     |
 | 858980 | v1:6     | ethernet1 | 1236::3 | 488456     |         | 0     |
 | 858981 | v1:6     | ethernet1 | 1236::3 | 488457     |         | 0     |
 | 858982 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 858983 | null     | null      | null    | unlabelled |         | 0     |
 | 858984 | null     | null      | null    | unlabelled |         | 0     |
 | 858985 | null     | null      | null    | unlabelled |         | 0     |
 | 858986 | null     | null      | null    | unlabelled |         | 0     |
 | 858987 | null     | null      | null    | unlabelled |         | 0     |
 | 864484 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 943932 | tester:4 | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#