here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 20336  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 41189  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 92100  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 392118 | null     | null      | null    | unlabelled |         | 0     |
 | 392119 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 392120 | v1:4     | ethernet1 | 1.1.1.2 | 557845     |         | 0     |
 | 392121 | v1:4     | ethernet1 | 1.1.1.2 | 557846     |         | 0     |
 | 392122 | v1:4     | ethernet1 | 1.1.1.2 | 557847     |         | 0     |
 | 392123 | null     | null      | null    | unlabelled |         | 0     |
 | 392124 | null     | null      | null    | unlabelled |         | 0     |
 | 392125 | null     | null      | null    | unlabelled |         | 0     |
 | 392126 | null     | null      | null    | unlabelled |         | 0     |
 | 392127 | null     | null      | null    | unlabelled |         | 0     |
 | 471285 | null     | null      | null    | unlabelled |         | 0     |
 | 471286 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 471287 | v1:6     | ethernet1 | 1234::2 | 606997     |         | 0     |
 | 471288 | v1:6     | ethernet1 | 1234::2 | 606998     |         | 0     |
 | 471289 | v1:6     | ethernet1 | 1234::2 | 606999     |         | 0     |
 | 471290 | null     | null      | null    | unlabelled |         | 0     |
 | 471291 | null     | null      | null    | unlabelled |         | 0     |
 | 471292 | null     | null      | null    | unlabelled |         | 0     |
 | 471293 | null     | null      | null    | unlabelled |         | 0     |
 | 471294 | null     | null      | null    | unlabelled |         | 0     |
 | 544375 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 587102 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 601423 | v1:4     | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 7750   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 518222 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 557843 | null     | null      | null    | unlabelled |         | 0     |
 | 557844 | v1:4     | ethernet1 | 1.1.1.1 | 392119     |         | 1280  |
 | 557845 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 557846 | v1:4     | ethernet2 | 1.1.2.3 | 609292     |         | 640   |
 | 557847 | v1:4     | ethernet2 | 1.1.2.3 | 609293     |         | 640   |
 | 557848 | null     | null      | null    | unlabelled |         | 0     |
 | 557849 | null     | null      | null    | unlabelled |         | 0     |
 | 557850 | null     | null      | null    | unlabelled |         | 0     |
 | 557851 | null     | null      | null    | unlabelled |         | 0     |
 | 557852 | null     | null      | null    | unlabelled |         | 0     |
 | 562877 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 584385 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 596759 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 606995 | null     | null      | null    | unlabelled |         | 0     |
 | 606996 | v1:6     | ethernet1 | 1234::1 | 471286     |         | 1280  |
 | 606997 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 606998 | v1:6     | ethernet2 | 1235::3 | 102188     |         | 640   |
 | 606999 | v1:6     | ethernet2 | 1235::3 | 102189     |         | 640   |
 | 607000 | null     | null      | null    | unlabelled |         | 0     |
 | 607001 | null     | null      | null    | unlabelled |         | 0     |
 | 607002 | null     | null      | null    | unlabelled |         | 0     |
 | 607003 | null     | null      | null    | unlabelled |         | 0     |
 | 607004 | null     | null      | null    | unlabelled |         | 0     |
 | 643641 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 794086 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 866292 | v1:6     | ethernet2 | 1235::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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 102185  | null     | null      | null    | unlabelled |         | 0     |
 | 102186  | v1:6     | ethernet1 | 1235::2 | 606996     |         | 640   |
 | 102187  | v1:6     | ethernet1 | 1235::2 | 606997     |         | 640   |
 | 102188  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 102189  | v1:6     | ethernet2 | 1236::4 | 643241     |         | 1280  |
 | 102190  | null     | null      | null    | unlabelled |         | 0     |
 | 102191  | null     | null      | null    | unlabelled |         | 0     |
 | 102192  | null     | null      | null    | unlabelled |         | 0     |
 | 102193  | null     | null      | null    | unlabelled |         | 0     |
 | 102194  | null     | null      | null    | unlabelled |         | 0     |
 | 138778  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 397122  | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 470713  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 609289  | null     | null      | null    | unlabelled |         | 0     |
 | 609290  | v1:4     | ethernet1 | 1.1.2.2 | 557844     |         | 640   |
 | 609291  | v1:4     | ethernet1 | 1.1.2.2 | 557845     |         | 640   |
 | 609292  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 609293  | v1:4     | ethernet2 | 1.1.3.4 | 405263     |         | 1280  |
 | 609294  | null     | null      | null    | unlabelled |         | 0     |
 | 609295  | null     | null      | null    | unlabelled |         | 0     |
 | 609296  | null     | null      | null    | unlabelled |         | 0     |
 | 609297  | null     | null      | null    | unlabelled |         | 0     |
 | 609298  | null     | null      | null    | unlabelled |         | 0     |
 | 658147  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 691060  | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 787195  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 982554  | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 1011035 | v1:4     | ethernet1 | 1.1.2.2 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 117590  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 264768  | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 321265  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 405259  | null     | null      | null    | unlabelled |         | 0     |
 | 405260  | v1:4     | ethernet1 | 1.1.3.3 | 609290     |         | 0     |
 | 405261  | v1:4     | ethernet1 | 1.1.3.3 | 609291     |         | 0     |
 | 405262  | v1:4     | ethernet1 | 1.1.3.3 | 609292     |         | 0     |
 | 405263  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 405264  | null     | null      | null    | unlabelled |         | 0     |
 | 405265  | null     | null      | null    | unlabelled |         | 0     |
 | 405266  | null     | null      | null    | unlabelled |         | 0     |
 | 405267  | null     | null      | null    | unlabelled |         | 0     |
 | 405268  | null     | null      | null    | unlabelled |         | 0     |
 | 643237  | null     | null      | null    | unlabelled |         | 0     |
 | 643238  | v1:6     | ethernet1 | 1236::3 | 102186     |         | 0     |
 | 643239  | v1:6     | ethernet1 | 1236::3 | 102187     |         | 0     |
 | 643240  | v1:6     | ethernet1 | 1236::3 | 102188     |         | 0     |
 | 643241  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 643242  | null     | null      | null    | unlabelled |         | 0     |
 | 643243  | null     | null      | null    | unlabelled |         | 0     |
 | 643244  | null     | null      | null    | unlabelled |         | 0     |
 | 643245  | null     | null      | null    | unlabelled |         | 0     |
 | 643246  | null     | null      | null    | unlabelled |         | 0     |
 | 753972  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 847438  | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 1018823 | v1:4     | null      | null    | unlabelled | local   | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r4#
r4#