here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 90905   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 244367  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 452065  | null     | null      | null    | unlabelled |         | 0     |
 | 452066  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 452067  | v1:4     | ethernet1 | 1.1.1.2 | 516385     |         | 0     |
 | 452068  | v1:4     | ethernet1 | 1.1.1.2 | 516386     |         | 0     |
 | 452069  | v1:4     | ethernet1 | 1.1.1.2 | 516387     |         | 0     |
 | 452070  | null     | null      | null    | unlabelled |         | 0     |
 | 452071  | null     | null      | null    | unlabelled |         | 0     |
 | 452072  | null     | null      | null    | unlabelled |         | 0     |
 | 452073  | null     | null      | null    | unlabelled |         | 0     |
 | 452074  | null     | null      | null    | unlabelled |         | 0     |
 | 463978  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 573341  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 589533  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 849154  | null     | null      | null    | unlabelled |         | 0     |
 | 849155  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 849156  | v1:6     | ethernet1 | 1234::2 | 235649     |         | 0     |
 | 849157  | v1:6     | ethernet1 | 1234::2 | 235650     |         | 0     |
 | 849158  | v1:6     | ethernet1 | 1234::2 | 235651     |         | 0     |
 | 849159  | null     | null      | null    | unlabelled |         | 0     |
 | 849160  | null     | null      | null    | unlabelled |         | 0     |
 | 849161  | null     | null      | null    | unlabelled |         | 0     |
 | 849162  | null     | null      | null    | unlabelled |         | 0     |
 | 849163  | null     | null      | null    | unlabelled |         | 0     |
 | 1032378 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 34073  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 82194  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 87615  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 101229 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 235647 | null     | null      | null    | unlabelled |         | 0     |
 | 235648 | v1:6     | ethernet1 | 1234::1 | 849155     |         | 1280  |
 | 235649 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 235650 | v1:6     | ethernet2 | 1235::3 | 279807     |         | 640   |
 | 235651 | v1:6     | ethernet2 | 1235::3 | 279808     |         | 640   |
 | 235652 | null     | null      | null    | unlabelled |         | 0     |
 | 235653 | null     | null      | null    | unlabelled |         | 0     |
 | 235654 | null     | null      | null    | unlabelled |         | 0     |
 | 235655 | null     | null      | null    | unlabelled |         | 0     |
 | 235656 | null     | null      | null    | unlabelled |         | 0     |
 | 356554 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 516383 | null     | null      | null    | unlabelled |         | 0     |
 | 516384 | v1:4     | ethernet1 | 1.1.1.1 | 452066     |         | 1280  |
 | 516385 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 516386 | v1:4     | ethernet2 | 1.1.2.3 | 498596     |         | 640   |
 | 516387 | v1:4     | ethernet2 | 1.1.2.3 | 498597     |         | 640   |
 | 516388 | null     | null      | null    | unlabelled |         | 0     |
 | 516389 | null     | null      | null    | unlabelled |         | 0     |
 | 516390 | null     | null      | null    | unlabelled |         | 0     |
 | 516391 | null     | null      | null    | unlabelled |         | 0     |
 | 516392 | null     | null      | null    | unlabelled |         | 0     |
 | 600062 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 657567 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 754326 | v1:4     | ethernet2 | 1.1.2.3 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 114755 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 279804 | null     | null      | null    | unlabelled |         | 0     |
 | 279805 | v1:6     | ethernet1 | 1235::2 | 235648     |         | 640   |
 | 279806 | v1:6     | ethernet1 | 1235::2 | 235649     |         | 640   |
 | 279807 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 279808 | v1:6     | ethernet2 | 1236::4 | 968367     |         | 1280  |
 | 279809 | null     | null      | null    | unlabelled |         | 0     |
 | 279810 | null     | null      | null    | unlabelled |         | 0     |
 | 279811 | null     | null      | null    | unlabelled |         | 0     |
 | 279812 | null     | null      | null    | unlabelled |         | 0     |
 | 279813 | null     | null      | null    | unlabelled |         | 0     |
 | 288880 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 342090 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 472877 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 498593 | null     | null      | null    | unlabelled |         | 0     |
 | 498594 | v1:4     | ethernet1 | 1.1.2.2 | 516384     |         | 640   |
 | 498595 | v1:4     | ethernet1 | 1.1.2.2 | 516385     |         | 640   |
 | 498596 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 498597 | v1:4     | ethernet2 | 1.1.3.4 | 843686     |         | 1280  |
 | 498598 | null     | null      | null    | unlabelled |         | 0     |
 | 498599 | null     | null      | null    | unlabelled |         | 0     |
 | 498600 | null     | null      | null    | unlabelled |         | 0     |
 | 498601 | null     | null      | null    | unlabelled |         | 0     |
 | 498602 | null     | null      | null    | unlabelled |         | 0     |
 | 557164 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 635334 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 668093 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 937249 | v1:6     | ethernet2 | 1236::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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 72224  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 80187  | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 343912 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 495170 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 837403 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 843682 | null     | null      | null    | unlabelled |         | 0     |
 | 843683 | v1:4     | ethernet1 | 1.1.3.3 | 498594     |         | 0     |
 | 843684 | v1:4     | ethernet1 | 1.1.3.3 | 498595     |         | 0     |
 | 843685 | v1:4     | ethernet1 | 1.1.3.3 | 498596     |         | 0     |
 | 843686 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 843687 | null     | null      | null    | unlabelled |         | 0     |
 | 843688 | null     | null      | null    | unlabelled |         | 0     |
 | 843689 | null     | null      | null    | unlabelled |         | 0     |
 | 843690 | null     | null      | null    | unlabelled |         | 0     |
 | 843691 | null     | null      | null    | unlabelled |         | 0     |
 | 869922 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 968363 | null     | null      | null    | unlabelled |         | 0     |
 | 968364 | v1:6     | ethernet1 | 1236::3 | 279805     |         | 0     |
 | 968365 | v1:6     | ethernet1 | 1236::3 | 279806     |         | 0     |
 | 968366 | v1:6     | ethernet1 | 1236::3 | 279807     |         | 0     |
 | 968367 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 968368 | null     | null      | null    | unlabelled |         | 0     |
 | 968369 | null     | null      | null    | unlabelled |         | 0     |
 | 968370 | null     | null      | null    | unlabelled |         | 0     |
 | 968371 | null     | null      | null    | unlabelled |         | 0     |
 | 968372 | null     | null      | null    | unlabelled |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#