here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 64557   | null     | null      | null    | unlabelled |         | 0     |
 | 64558   | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 64559   | v1:4     | ethernet1 | 1.1.1.2 | 101584     |         | 0     |
 | 64560   | v1:4     | ethernet1 | 1.1.1.2 | 101585     |         | 0     |
 | 64561   | v1:4     | ethernet1 | 1.1.1.2 | 101586     |         | 0     |
 | 64562   | null     | null      | null    | unlabelled |         | 0     |
 | 64563   | null     | null      | null    | unlabelled |         | 0     |
 | 64564   | null     | null      | null    | unlabelled |         | 0     |
 | 64565   | null     | null      | null    | unlabelled |         | 0     |
 | 64566   | null     | null      | null    | unlabelled |         | 0     |
 | 168638  | null     | null      | null    | unlabelled |         | 0     |
 | 168639  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 168640  | v1:6     | ethernet1 | 1234::2 | 263916     |         | 0     |
 | 168641  | v1:6     | ethernet1 | 1234::2 | 263917     |         | 0     |
 | 168642  | v1:6     | ethernet1 | 1234::2 | 263918     |         | 0     |
 | 168643  | null     | null      | null    | unlabelled |         | 0     |
 | 168644  | null     | null      | null    | unlabelled |         | 0     |
 | 168645  | null     | null      | null    | unlabelled |         | 0     |
 | 168646  | null     | null      | null    | unlabelled |         | 0     |
 | 168647  | null     | null      | null    | unlabelled |         | 0     |
 | 201741  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 226407  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 347765  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 348652  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 560839  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 727699  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 783340  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 872291  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 924552  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 1011427 | v1:6     | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 16864  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 101582 | null     | null      | null    | unlabelled |         | 0     |
 | 101583 | v1:4     | ethernet1 | 1.1.1.1 | 64558      |         | 1280  |
 | 101584 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 101585 | v1:4     | ethernet2 | 1.1.2.3 | 661809     |         | 640   |
 | 101586 | v1:4     | ethernet2 | 1.1.2.3 | 661810     |         | 640   |
 | 101587 | null     | null      | null    | unlabelled |         | 0     |
 | 101588 | null     | null      | null    | unlabelled |         | 0     |
 | 101589 | null     | null      | null    | unlabelled |         | 0     |
 | 101590 | null     | null      | null    | unlabelled |         | 0     |
 | 101591 | null     | null      | null    | unlabelled |         | 0     |
 | 138527 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 139807 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 263914 | null     | null      | null    | unlabelled |         | 0     |
 | 263915 | v1:6     | ethernet1 | 1234::1 | 168639     |         | 1280  |
 | 263916 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 263917 | v1:6     | ethernet2 | 1235::3 | 504103     |         | 640   |
 | 263918 | v1:6     | ethernet2 | 1235::3 | 504104     |         | 640   |
 | 263919 | null     | null      | null    | unlabelled |         | 0     |
 | 263920 | null     | null      | null    | unlabelled |         | 0     |
 | 263921 | null     | null      | null    | unlabelled |         | 0     |
 | 263922 | null     | null      | null    | unlabelled |         | 0     |
 | 263923 | null     | null      | null    | unlabelled |         | 0     |
 | 458891 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 519558 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 767022 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 767906 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 826378 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 850414 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 870829 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 889532 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 940936 | v1:4     | ethernet1 | 1.1.1.1 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 35314  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 66088  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 243966 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 425103 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 504100 | null     | null      | null    | unlabelled |         | 0     |
 | 504101 | v1:6     | ethernet1 | 1235::2 | 263915     |         | 640   |
 | 504102 | v1:6     | ethernet1 | 1235::2 | 263916     |         | 640   |
 | 504103 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 504104 | v1:6     | ethernet2 | 1236::4 | 526147     |         | 1280  |
 | 504105 | null     | null      | null    | unlabelled |         | 0     |
 | 504106 | null     | null      | null    | unlabelled |         | 0     |
 | 504107 | null     | null      | null    | unlabelled |         | 0     |
 | 504108 | null     | null      | null    | unlabelled |         | 0     |
 | 504109 | null     | null      | null    | unlabelled |         | 0     |
 | 533532 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 588225 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 624060 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 661806 | null     | null      | null    | unlabelled |         | 0     |
 | 661807 | v1:4     | ethernet1 | 1.1.2.2 | 101583     |         | 640   |
 | 661808 | v1:4     | ethernet1 | 1.1.2.2 | 101584     |         | 640   |
 | 661809 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 661810 | v1:4     | ethernet2 | 1.1.3.4 | 620692     |         | 1280  |
 | 661811 | null     | null      | null    | unlabelled |         | 0     |
 | 661812 | null     | null      | null    | unlabelled |         | 0     |
 | 661813 | null     | null      | null    | unlabelled |         | 0     |
 | 661814 | null     | null      | null    | unlabelled |         | 0     |
 | 661815 | null     | null      | null    | unlabelled |         | 0     |
 | 790370 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 856537 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 872124 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 989363 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 999962 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 76407  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 207079 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 410747 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 414635 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 447126 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 526143 | null     | null      | null    | unlabelled |         | 0     |
 | 526144 | v1:6     | ethernet1 | 1236::3 | 504101     |         | 0     |
 | 526145 | v1:6     | ethernet1 | 1236::3 | 504102     |         | 0     |
 | 526146 | v1:6     | ethernet1 | 1236::3 | 504103     |         | 0     |
 | 526147 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 526148 | null     | null      | null    | unlabelled |         | 0     |
 | 526149 | null     | null      | null    | unlabelled |         | 0     |
 | 526150 | null     | null      | null    | unlabelled |         | 0     |
 | 526151 | null     | null      | null    | unlabelled |         | 0     |
 | 526152 | null     | null      | null    | unlabelled |         | 0     |
 | 599798 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 620688 | null     | null      | null    | unlabelled |         | 0     |
 | 620689 | v1:4     | ethernet1 | 1.1.3.3 | 661807     |         | 0     |
 | 620690 | v1:4     | ethernet1 | 1.1.3.3 | 661808     |         | 0     |
 | 620691 | v1:4     | ethernet1 | 1.1.3.3 | 661809     |         | 0     |
 | 620692 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 620693 | null     | null      | null    | unlabelled |         | 0     |
 | 620694 | null     | null      | null    | unlabelled |         | 0     |
 | 620695 | null     | null      | null    | unlabelled |         | 0     |
 | 620696 | null     | null      | null    | unlabelled |         | 0     |
 | 620697 | null     | null      | null    | unlabelled |         | 0     |
 | 711068 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 730421 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 842469 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 866524 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#