here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 102451  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 174781  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 187337  | null     | null      | null    | unlabelled |         | 0     |
 | 187338  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 187339  | v1:4     | ethernet1 | 1.1.1.2 | 762730     |         | 0     |
 | 187340  | v1:4     | ethernet1 | 1.1.1.2 | 762731     |         | 0     |
 | 187341  | v1:4     | ethernet1 | 1.1.1.2 | 762732     |         | 0     |
 | 187342  | null     | null      | null    | unlabelled |         | 0     |
 | 187343  | null     | null      | null    | unlabelled |         | 0     |
 | 187344  | null     | null      | null    | unlabelled |         | 0     |
 | 187345  | null     | null      | null    | unlabelled |         | 0     |
 | 187346  | null     | null      | null    | unlabelled |         | 0     |
 | 330987  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 337908  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 475779  | null     | null      | null    | unlabelled |         | 0     |
 | 475780  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 475781  | v1:6     | ethernet1 | 1234::2 | 406401     |         | 0     |
 | 475782  | v1:6     | ethernet1 | 1234::2 | 406402     |         | 0     |
 | 475783  | v1:6     | ethernet1 | 1234::2 | 406403     |         | 0     |
 | 475784  | null     | null      | null    | unlabelled |         | 0     |
 | 475785  | null     | null      | null    | unlabelled |         | 0     |
 | 475786  | null     | null      | null    | unlabelled |         | 0     |
 | 475787  | null     | null      | null    | unlabelled |         | 0     |
 | 475788  | null     | null      | null    | unlabelled |         | 0     |
 | 638786  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 731381  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 731745  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 825771  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 885483  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 1018603 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 117196 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 134492 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 162780 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 231642 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 255835 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 317142 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 403753 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 406399 | null     | null      | null    | unlabelled |         | 0     |
 | 406400 | v1:6     | ethernet1 | 1234::1 | 475780     |         | 1280  |
 | 406401 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 406402 | v1:6     | ethernet2 | 1235::3 | 680866     |         | 640   |
 | 406403 | v1:6     | ethernet2 | 1235::3 | 680867     |         | 640   |
 | 406404 | null     | null      | null    | unlabelled |         | 0     |
 | 406405 | null     | null      | null    | unlabelled |         | 0     |
 | 406406 | null     | null      | null    | unlabelled |         | 0     |
 | 406407 | null     | null      | null    | unlabelled |         | 0     |
 | 406408 | null     | null      | null    | unlabelled |         | 0     |
 | 444145 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 497812 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 671781 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 762728 | null     | null      | null    | unlabelled |         | 0     |
 | 762729 | v1:4     | ethernet1 | 1.1.1.1 | 187338     |         | 1280  |
 | 762730 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 762731 | v1:4     | ethernet2 | 1.1.2.3 | 161468     |         | 640   |
 | 762732 | v1:4     | ethernet2 | 1.1.2.3 | 161469     |         | 640   |
 | 762733 | null     | null      | null    | unlabelled |         | 0     |
 | 762734 | null     | null      | null    | unlabelled |         | 0     |
 | 762735 | null     | null      | null    | unlabelled |         | 0     |
 | 762736 | null     | null      | null    | unlabelled |         | 0     |
 | 762737 | null     | null      | null    | unlabelled |         | 0     |
 | 860162 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 900804 | tester: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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 161465  | null     | null      | null    | unlabelled |         | 0     |
 | 161466  | v1:4     | ethernet1 | 1.1.2.2 | 762729     |         | 640   |
 | 161467  | v1:4     | ethernet1 | 1.1.2.2 | 762730     |         | 640   |
 | 161468  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 161469  | v1:4     | ethernet2 | 1.1.3.4 | 84623      |         | 1280  |
 | 161470  | null     | null      | null    | unlabelled |         | 0     |
 | 161471  | null     | null      | null    | unlabelled |         | 0     |
 | 161472  | null     | null      | null    | unlabelled |         | 0     |
 | 161473  | null     | null      | null    | unlabelled |         | 0     |
 | 161474  | null     | null      | null    | unlabelled |         | 0     |
 | 351698  | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 577480  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 589436  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 602390  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 644757  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 680863  | null     | null      | null    | unlabelled |         | 0     |
 | 680864  | v1:6     | ethernet1 | 1235::2 | 406400     |         | 640   |
 | 680865  | v1:6     | ethernet1 | 1235::2 | 406401     |         | 640   |
 | 680866  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 680867  | v1:6     | ethernet2 | 1236::4 | 383793     |         | 1280  |
 | 680868  | null     | null      | null    | unlabelled |         | 0     |
 | 680869  | null     | null      | null    | unlabelled |         | 0     |
 | 680870  | null     | null      | null    | unlabelled |         | 0     |
 | 680871  | null     | null      | null    | unlabelled |         | 0     |
 | 680872  | null     | null      | null    | unlabelled |         | 0     |
 | 682044  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 740576  | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 795550  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 800888  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 939272  | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 944389  | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 1045108 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 84619  | null     | null      | null    | unlabelled |         | 0     |
 | 84620  | v1:4     | ethernet1 | 1.1.3.3 | 161466     |         | 0     |
 | 84621  | v1:4     | ethernet1 | 1.1.3.3 | 161467     |         | 0     |
 | 84622  | v1:4     | ethernet1 | 1.1.3.3 | 161468     |         | 0     |
 | 84623  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 84624  | null     | null      | null    | unlabelled |         | 0     |
 | 84625  | null     | null      | null    | unlabelled |         | 0     |
 | 84626  | null     | null      | null    | unlabelled |         | 0     |
 | 84627  | null     | null      | null    | unlabelled |         | 0     |
 | 84628  | null     | null      | null    | unlabelled |         | 0     |
 | 119478 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 125906 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 321612 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 330486 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 383789 | null     | null      | null    | unlabelled |         | 0     |
 | 383790 | v1:6     | ethernet1 | 1236::3 | 680864     |         | 0     |
 | 383791 | v1:6     | ethernet1 | 1236::3 | 680865     |         | 0     |
 | 383792 | v1:6     | ethernet1 | 1236::3 | 680866     |         | 0     |
 | 383793 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 383794 | null     | null      | null    | unlabelled |         | 0     |
 | 383795 | null     | null      | null    | unlabelled |         | 0     |
 | 383796 | null     | null      | null    | unlabelled |         | 0     |
 | 383797 | null     | null      | null    | unlabelled |         | 0     |
 | 383798 | null     | null      | null    | unlabelled |         | 0     |
 | 399072 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 426846 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 443576 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 531932 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 614142 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 721498 | tester:6 | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#