here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 73356   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 97138   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 316359  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 490876  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 542724  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 544684  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 704443  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 745881  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 795995  | null     | null      | null    | unlabelled |         | 0     |
 | 795996  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 795997  | v1:6     | ethernet1 | 1234::2 | 649859     |         | 0     |
 | 795998  | v1:6     | ethernet1 | 1234::2 | 649860     |         | 0     |
 | 795999  | v1:6     | ethernet1 | 1234::2 | 649861     |         | 0     |
 | 796000  | null     | null      | null    | unlabelled |         | 0     |
 | 796001  | null     | null      | null    | unlabelled |         | 0     |
 | 796002  | null     | null      | null    | unlabelled |         | 0     |
 | 796003  | null     | null      | null    | unlabelled |         | 0     |
 | 796004  | null     | null      | null    | unlabelled |         | 0     |
 | 919877  | null     | null      | null    | unlabelled |         | 0     |
 | 919878  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 919879  | v1:4     | ethernet1 | 1.1.1.2 | 433683     |         | 0     |
 | 919880  | v1:4     | ethernet1 | 1.1.1.2 | 433684     |         | 0     |
 | 919881  | v1:4     | ethernet1 | 1.1.1.2 | 433685     |         | 0     |
 | 919882  | null     | null      | null    | unlabelled |         | 0     |
 | 919883  | null     | null      | null    | unlabelled |         | 0     |
 | 919884  | null     | null      | null    | unlabelled |         | 0     |
 | 919885  | null     | null      | null    | unlabelled |         | 0     |
 | 919886  | null     | null      | null    | unlabelled |         | 0     |
 | 990869  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 1017242 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 22690   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 95370   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 115371  | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 124673  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 336718  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 348042  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 417411  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 433681  | null     | null      | null    | unlabelled |         | 0     |
 | 433682  | v1:4     | ethernet1 | 1.1.1.1 | 919878     |         | 1280  |
 | 433683  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 433684  | v1:4     | ethernet2 | 1.1.2.3 | 89299      |         | 640   |
 | 433685  | v1:4     | ethernet2 | 1.1.2.3 | 89300      |         | 640   |
 | 433686  | null     | null      | null    | unlabelled |         | 0     |
 | 433687  | null     | null      | null    | unlabelled |         | 0     |
 | 433688  | null     | null      | null    | unlabelled |         | 0     |
 | 433689  | null     | null      | null    | unlabelled |         | 0     |
 | 433690  | null     | null      | null    | unlabelled |         | 0     |
 | 649857  | null     | null      | null    | unlabelled |         | 0     |
 | 649858  | v1:6     | ethernet1 | 1234::1 | 795996     |         | 1280  |
 | 649859  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 649860  | v1:6     | ethernet2 | 1235::3 | 707113     |         | 640   |
 | 649861  | v1:6     | ethernet2 | 1235::3 | 707114     |         | 640   |
 | 649862  | null     | null      | null    | unlabelled |         | 0     |
 | 649863  | null     | null      | null    | unlabelled |         | 0     |
 | 649864  | null     | null      | null    | unlabelled |         | 0     |
 | 649865  | null     | null      | null    | unlabelled |         | 0     |
 | 649866  | null     | null      | null    | unlabelled |         | 0     |
 | 696456  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 711023  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 834232  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 940545  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 1019044 | tester:6 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 6435   | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 89296  | null     | null      | null    | unlabelled |         | 0     |
 | 89297  | v1:4     | ethernet1 | 1.1.2.2 | 433682     |         | 640   |
 | 89298  | v1:4     | ethernet1 | 1.1.2.2 | 433683     |         | 640   |
 | 89299  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 89300  | v1:4     | ethernet2 | 1.1.3.4 | 334110     |         | 1280  |
 | 89301  | null     | null      | null    | unlabelled |         | 0     |
 | 89302  | null     | null      | null    | unlabelled |         | 0     |
 | 89303  | null     | null      | null    | unlabelled |         | 0     |
 | 89304  | null     | null      | null    | unlabelled |         | 0     |
 | 89305  | null     | null      | null    | unlabelled |         | 0     |
 | 97251  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 200696 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 276272 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 470478 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 586245 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 611233 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 620537 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 698449 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 707110 | null     | null      | null    | unlabelled |         | 0     |
 | 707111 | v1:6     | ethernet1 | 1235::2 | 649858     |         | 640   |
 | 707112 | v1:6     | ethernet1 | 1235::2 | 649859     |         | 640   |
 | 707113 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 707114 | v1:6     | ethernet2 | 1236::4 | 626674     |         | 1280  |
 | 707115 | null     | null      | null    | unlabelled |         | 0     |
 | 707116 | null     | null      | null    | unlabelled |         | 0     |
 | 707117 | null     | null      | null    | unlabelled |         | 0     |
 | 707118 | null     | null      | null    | unlabelled |         | 0     |
 | 707119 | null     | null      | null    | unlabelled |         | 0     |
 | 776372 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 856608 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 876231 | v1:4     | ethernet2 | 1.1.3.4 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 60120   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 191087  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 212138  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 334106  | null     | null      | null    | unlabelled |         | 0     |
 | 334107  | v1:4     | ethernet1 | 1.1.3.3 | 89297      |         | 0     |
 | 334108  | v1:4     | ethernet1 | 1.1.3.3 | 89298      |         | 0     |
 | 334109  | v1:4     | ethernet1 | 1.1.3.3 | 89299      |         | 0     |
 | 334110  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 334111  | null     | null      | null    | unlabelled |         | 0     |
 | 334112  | null     | null      | null    | unlabelled |         | 0     |
 | 334113  | null     | null      | null    | unlabelled |         | 0     |
 | 334114  | null     | null      | null    | unlabelled |         | 0     |
 | 334115  | null     | null      | null    | unlabelled |         | 0     |
 | 520241  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 541962  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 626670  | null     | null      | null    | unlabelled |         | 0     |
 | 626671  | v1:6     | ethernet1 | 1236::3 | 707111     |         | 0     |
 | 626672  | v1:6     | ethernet1 | 1236::3 | 707112     |         | 0     |
 | 626673  | v1:6     | ethernet1 | 1236::3 | 707113     |         | 0     |
 | 626674  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 626675  | null     | null      | null    | unlabelled |         | 0     |
 | 626676  | null     | null      | null    | unlabelled |         | 0     |
 | 626677  | null     | null      | null    | unlabelled |         | 0     |
 | 626678  | null     | null      | null    | unlabelled |         | 0     |
 | 626679  | null     | null      | null    | unlabelled |         | 0     |
 | 687521  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 705382  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 750078  | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 763736  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 1007178 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r4#
r4#