here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 159603 | null     | null      | null    | unlabelled |         | 0     |
 | 159604 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 159605 | v1:4     | ethernet1 | 1.1.1.2 | 941967     |         | 0     |
 | 159606 | v1:4     | ethernet1 | 1.1.1.2 | 941968     |         | 0     |
 | 159607 | v1:4     | ethernet1 | 1.1.1.2 | 941969     |         | 0     |
 | 159608 | null     | null      | null    | unlabelled |         | 0     |
 | 159609 | null     | null      | null    | unlabelled |         | 0     |
 | 159610 | null     | null      | null    | unlabelled |         | 0     |
 | 159611 | null     | null      | null    | unlabelled |         | 0     |
 | 159612 | null     | null      | null    | unlabelled |         | 0     |
 | 204251 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 289794 | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 379013 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 387285 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 394967 | null     | null      | null    | unlabelled |         | 0     |
 | 394968 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 394969 | v1:6     | ethernet1 | 1234::2 | 966846     |         | 0     |
 | 394970 | v1:6     | ethernet1 | 1234::2 | 966847     |         | 0     |
 | 394971 | v1:6     | ethernet1 | 1234::2 | 966848     |         | 0     |
 | 394972 | null     | null      | null    | unlabelled |         | 0     |
 | 394973 | null     | null      | null    | unlabelled |         | 0     |
 | 394974 | null     | null      | null    | unlabelled |         | 0     |
 | 394975 | null     | null      | null    | unlabelled |         | 0     |
 | 394976 | null     | null      | null    | unlabelled |         | 0     |
 | 437839 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 580500 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 645256 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 670578 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 951362 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 986341 | tester:4 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 47727  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 58053  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 247268 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 276643 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 342274 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 357546 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 433399 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 510182 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 637998 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 751615 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 848891 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 918661 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 941965 | null     | null      | null    | unlabelled |         | 0     |
 | 941966 | v1:4     | ethernet1 | 1.1.1.1 | 159604     |         | 1280  |
 | 941967 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 941968 | v1:4     | ethernet2 | 1.1.2.3 | 690195     |         | 640   |
 | 941969 | v1:4     | ethernet2 | 1.1.2.3 | 690196     |         | 640   |
 | 941970 | null     | null      | null    | unlabelled |         | 0     |
 | 941971 | null     | null      | null    | unlabelled |         | 0     |
 | 941972 | null     | null      | null    | unlabelled |         | 0     |
 | 941973 | null     | null      | null    | unlabelled |         | 0     |
 | 941974 | null     | null      | null    | unlabelled |         | 0     |
 | 966844 | null     | null      | null    | unlabelled |         | 0     |
 | 966845 | v1:6     | ethernet1 | 1234::1 | 394968     |         | 1280  |
 | 966846 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 966847 | v1:6     | ethernet2 | 1235::3 | 649694     |         | 640   |
 | 966848 | v1:6     | ethernet2 | 1235::3 | 649695     |         | 640   |
 | 966849 | null     | null      | null    | unlabelled |         | 0     |
 | 966850 | null     | null      | null    | unlabelled |         | 0     |
 | 966851 | null     | null      | null    | unlabelled |         | 0     |
 | 966852 | null     | null      | null    | unlabelled |         | 0     |
 | 966853 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 254893 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 271645 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 337498 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 346002 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 522697 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 524243 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 608904 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 649691 | null     | null      | null    | unlabelled |         | 0     |
 | 649692 | v1:6     | ethernet1 | 1235::2 | 966845     |         | 640   |
 | 649693 | v1:6     | ethernet1 | 1235::2 | 966846     |         | 640   |
 | 649694 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 649695 | v1:6     | ethernet2 | 1236::4 | 747676     |         | 1280  |
 | 649696 | null     | null      | null    | unlabelled |         | 0     |
 | 649697 | null     | null      | null    | unlabelled |         | 0     |
 | 649698 | null     | null      | null    | unlabelled |         | 0     |
 | 649699 | null     | null      | null    | unlabelled |         | 0     |
 | 649700 | null     | null      | null    | unlabelled |         | 0     |
 | 690192 | null     | null      | null    | unlabelled |         | 0     |
 | 690193 | v1:4     | ethernet1 | 1.1.2.2 | 941966     |         | 640   |
 | 690194 | v1:4     | ethernet1 | 1.1.2.2 | 941967     |         | 640   |
 | 690195 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 690196 | v1:4     | ethernet2 | 1.1.3.4 | 275735     |         | 1280  |
 | 690197 | null     | null      | null    | unlabelled |         | 0     |
 | 690198 | null     | null      | null    | unlabelled |         | 0     |
 | 690199 | null     | null      | null    | unlabelled |         | 0     |
 | 690200 | null     | null      | null    | unlabelled |         | 0     |
 | 690201 | null     | null      | null    | unlabelled |         | 0     |
 | 696479 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 789380 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 915700 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 936586 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 968188 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 144609 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 242629 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 248867 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 275731 | null     | null      | null    | unlabelled |         | 0     |
 | 275732 | v1:4     | ethernet1 | 1.1.3.3 | 690193     |         | 0     |
 | 275733 | v1:4     | ethernet1 | 1.1.3.3 | 690194     |         | 0     |
 | 275734 | v1:4     | ethernet1 | 1.1.3.3 | 690195     |         | 0     |
 | 275735 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 275736 | null     | null      | null    | unlabelled |         | 0     |
 | 275737 | null     | null      | null    | unlabelled |         | 0     |
 | 275738 | null     | null      | null    | unlabelled |         | 0     |
 | 275739 | null     | null      | null    | unlabelled |         | 0     |
 | 275740 | null     | null      | null    | unlabelled |         | 0     |
 | 278456 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 333668 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 428140 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 495820 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 557107 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 655228 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 747672 | null     | null      | null    | unlabelled |         | 0     |
 | 747673 | v1:6     | ethernet1 | 1236::3 | 649692     |         | 0     |
 | 747674 | v1:6     | ethernet1 | 1236::3 | 649693     |         | 0     |
 | 747675 | v1:6     | ethernet1 | 1236::3 | 649694     |         | 0     |
 | 747676 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 747677 | null     | null      | null    | unlabelled |         | 0     |
 | 747678 | null     | null      | null    | unlabelled |         | 0     |
 | 747679 | null     | null      | null    | unlabelled |         | 0     |
 | 747680 | null     | null      | null    | unlabelled |         | 0     |
 | 747681 | null     | null      | null    | unlabelled |         | 0     |
 | 940971 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#