here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 34630   | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 35178   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 109675  | null     | null      | null    | unlabelled |         | 0     |
 | 109676  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 109677  | v1:4     | ethernet1 | 1.1.1.2 | 109931     |         | 0     |
 | 109678  | v1:4     | ethernet1 | 1.1.1.2 | 109932     |         | 0     |
 | 109679  | v1:4     | ethernet1 | 1.1.1.2 | 109933     |         | 0     |
 | 109680  | null     | null      | null    | unlabelled |         | 0     |
 | 109681  | null     | null      | null    | unlabelled |         | 0     |
 | 109682  | null     | null      | null    | unlabelled |         | 0     |
 | 109683  | null     | null      | null    | unlabelled |         | 0     |
 | 109684  | null     | null      | null    | unlabelled |         | 0     |
 | 110372  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 257983  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 412059  | null     | null      | null    | unlabelled |         | 0     |
 | 412060  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 412061  | v1:6     | ethernet1 | 1234::2 | 897780     |         | 0     |
 | 412062  | v1:6     | ethernet1 | 1234::2 | 897781     |         | 0     |
 | 412063  | v1:6     | ethernet1 | 1234::2 | 897782     |         | 0     |
 | 412064  | null     | null      | null    | unlabelled |         | 0     |
 | 412065  | null     | null      | null    | unlabelled |         | 0     |
 | 412066  | null     | null      | null    | unlabelled |         | 0     |
 | 412067  | null     | null      | null    | unlabelled |         | 0     |
 | 412068  | null     | null      | null    | unlabelled |         | 0     |
 | 429941  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 1018952 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 99563  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 109929 | null     | null      | null    | unlabelled |         | 0     |
 | 109930 | v1:4     | ethernet1 | 1.1.1.1 | 109676     |         | 1280  |
 | 109931 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 109932 | v1:4     | ethernet2 | 1.1.2.3 | 17373      |         | 640   |
 | 109933 | v1:4     | ethernet2 | 1.1.2.3 | 17374      |         | 640   |
 | 109934 | null     | null      | null    | unlabelled |         | 0     |
 | 109935 | null     | null      | null    | unlabelled |         | 0     |
 | 109936 | null     | null      | null    | unlabelled |         | 0     |
 | 109937 | null     | null      | null    | unlabelled |         | 0     |
 | 109938 | null     | null      | null    | unlabelled |         | 0     |
 | 201745 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 295683 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 404492 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 471675 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 663061 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 740648 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 897778 | null     | null      | null    | unlabelled |         | 0     |
 | 897779 | v1:6     | ethernet1 | 1234::1 | 412060     |         | 1280  |
 | 897780 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 897781 | v1:6     | ethernet2 | 1235::3 | 188871     |         | 640   |
 | 897782 | v1:6     | ethernet2 | 1235::3 | 188872     |         | 640   |
 | 897783 | null     | null      | null    | unlabelled |         | 0     |
 | 897784 | null     | null      | null    | unlabelled |         | 0     |
 | 897785 | null     | null      | null    | unlabelled |         | 0     |
 | 897786 | null     | null      | null    | unlabelled |         | 0     |
 | 897787 | null     | null      | null    | unlabelled |         | 0     |
 | 905034 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 17370   | null     | null      | null    | unlabelled |         | 0     |
 | 17371   | v1:4     | ethernet1 | 1.1.2.2 | 109930     |         | 640   |
 | 17372   | v1:4     | ethernet1 | 1.1.2.2 | 109931     |         | 640   |
 | 17373   | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 17374   | v1:4     | ethernet2 | 1.1.3.4 | 627450     |         | 1280  |
 | 17375   | null     | null      | null    | unlabelled |         | 0     |
 | 17376   | null     | null      | null    | unlabelled |         | 0     |
 | 17377   | null     | null      | null    | unlabelled |         | 0     |
 | 17378   | null     | null      | null    | unlabelled |         | 0     |
 | 17379   | null     | null      | null    | unlabelled |         | 0     |
 | 188868  | null     | null      | null    | unlabelled |         | 0     |
 | 188869  | v1:6     | ethernet1 | 1235::2 | 897779     |         | 640   |
 | 188870  | v1:6     | ethernet1 | 1235::2 | 897780     |         | 640   |
 | 188871  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 188872  | v1:6     | ethernet2 | 1236::4 | 294439     |         | 1280  |
 | 188873  | null     | null      | null    | unlabelled |         | 0     |
 | 188874  | null     | null      | null    | unlabelled |         | 0     |
 | 188875  | null     | null      | null    | unlabelled |         | 0     |
 | 188876  | null     | null      | null    | unlabelled |         | 0     |
 | 188877  | null     | null      | null    | unlabelled |         | 0     |
 | 360607  | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 370605  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 650854  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 774485  | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 789320  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 816560  | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 986226  | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 1040951 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 134661 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 151710 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 199498 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 294435 | null     | null      | null    | unlabelled |         | 0     |
 | 294436 | v1:6     | ethernet1 | 1236::3 | 188869     |         | 0     |
 | 294437 | v1:6     | ethernet1 | 1236::3 | 188870     |         | 0     |
 | 294438 | v1:6     | ethernet1 | 1236::3 | 188871     |         | 0     |
 | 294439 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 294440 | null     | null      | null    | unlabelled |         | 0     |
 | 294441 | null     | null      | null    | unlabelled |         | 0     |
 | 294442 | null     | null      | null    | unlabelled |         | 0     |
 | 294443 | null     | null      | null    | unlabelled |         | 0     |
 | 294444 | null     | null      | null    | unlabelled |         | 0     |
 | 627446 | null     | null      | null    | unlabelled |         | 0     |
 | 627447 | v1:4     | ethernet1 | 1.1.3.3 | 17371      |         | 0     |
 | 627448 | v1:4     | ethernet1 | 1.1.3.3 | 17372      |         | 0     |
 | 627449 | v1:4     | ethernet1 | 1.1.3.3 | 17373      |         | 0     |
 | 627450 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 627451 | null     | null      | null    | unlabelled |         | 0     |
 | 627452 | null     | null      | null    | unlabelled |         | 0     |
 | 627453 | null     | null      | null    | unlabelled |         | 0     |
 | 627454 | null     | null      | null    | unlabelled |         | 0     |
 | 627455 | null     | null      | null    | unlabelled |         | 0     |
 | 817048 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 865025 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 942385 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#