here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 15018   | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 193518  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 641015  | null     | null      | null    | unlabelled |         | 0     |
 | 641016  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 641017  | v1:4     | ethernet1 | 1.1.1.2 | 574774     |         | 0     |
 | 641018  | v1:4     | ethernet1 | 1.1.1.2 | 574775     |         | 0     |
 | 641019  | v1:4     | ethernet1 | 1.1.1.2 | 574776     |         | 0     |
 | 641020  | null     | null      | null    | unlabelled |         | 0     |
 | 641021  | null     | null      | null    | unlabelled |         | 0     |
 | 641022  | null     | null      | null    | unlabelled |         | 0     |
 | 641023  | null     | null      | null    | unlabelled |         | 0     |
 | 641024  | null     | null      | null    | unlabelled |         | 0     |
 | 732559  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 799329  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 976538  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 1024171 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 1039133 | null     | null      | null    | unlabelled |         | 0     |
 | 1039134 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 1039135 | v1:6     | ethernet1 | 1234::2 | 490006     |         | 0     |
 | 1039136 | v1:6     | ethernet1 | 1234::2 | 490007     |         | 0     |
 | 1039137 | v1:6     | ethernet1 | 1234::2 | 490008     |         | 0     |
 | 1039138 | null     | null      | null    | unlabelled |         | 0     |
 | 1039139 | null     | null      | null    | unlabelled |         | 0     |
 | 1039140 | null     | null      | null    | unlabelled |         | 0     |
 | 1039141 | null     | null      | null    | unlabelled |         | 0     |
 | 1039142 | null     | null      | null    | unlabelled |         | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r1#
r1#
here is the lib:
r2#
r2#
r2#show mpls forw
r2#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 31102  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 107013 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 233950 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 425828 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 490004 | null     | null      | null    | unlabelled |         | 0     |
 | 490005 | v1:6     | ethernet1 | 1234::1 | 1039134    |         | 1280  |
 | 490006 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 490007 | v1:6     | ethernet2 | 1235::3 | 495687     |         | 640   |
 | 490008 | v1:6     | ethernet2 | 1235::3 | 495688     |         | 640   |
 | 490009 | null     | null      | null    | unlabelled |         | 0     |
 | 490010 | null     | null      | null    | unlabelled |         | 0     |
 | 490011 | null     | null      | null    | unlabelled |         | 0     |
 | 490012 | null     | null      | null    | unlabelled |         | 0     |
 | 490013 | null     | null      | null    | unlabelled |         | 0     |
 | 574772 | null     | null      | null    | unlabelled |         | 0     |
 | 574773 | v1:4     | ethernet1 | 1.1.1.1 | 641016     |         | 1280  |
 | 574774 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 574775 | v1:4     | ethernet2 | 1.1.2.3 | 235351     |         | 640   |
 | 574776 | v1:4     | ethernet2 | 1.1.2.3 | 235352     |         | 640   |
 | 574777 | null     | null      | null    | unlabelled |         | 0     |
 | 574778 | null     | null      | null    | unlabelled |         | 0     |
 | 574779 | null     | null      | null    | unlabelled |         | 0     |
 | 574780 | null     | null      | null    | unlabelled |         | 0     |
 | 574781 | null     | null      | null    | unlabelled |         | 0     |
 | 621443 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 694774 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 728481 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 762192 | v1:6     | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 235348 | null     | null      | null    | unlabelled |         | 0     |
 | 235349 | v1:4     | ethernet1 | 1.1.2.2 | 574773     |         | 640   |
 | 235350 | v1:4     | ethernet1 | 1.1.2.2 | 574774     |         | 640   |
 | 235351 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 235352 | v1:4     | ethernet2 | 1.1.3.4 | 864058     |         | 1280  |
 | 235353 | null     | null      | null    | unlabelled |         | 0     |
 | 235354 | null     | null      | null    | unlabelled |         | 0     |
 | 235355 | null     | null      | null    | unlabelled |         | 0     |
 | 235356 | null     | null      | null    | unlabelled |         | 0     |
 | 235357 | null     | null      | null    | unlabelled |         | 0     |
 | 362690 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 495684 | null     | null      | null    | unlabelled |         | 0     |
 | 495685 | v1:6     | ethernet1 | 1235::2 | 490005     |         | 640   |
 | 495686 | v1:6     | ethernet1 | 1235::2 | 490006     |         | 640   |
 | 495687 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 495688 | v1:6     | ethernet2 | 1236::4 | 447626     |         | 1280  |
 | 495689 | null     | null      | null    | unlabelled |         | 0     |
 | 495690 | null     | null      | null    | unlabelled |         | 0     |
 | 495691 | null     | null      | null    | unlabelled |         | 0     |
 | 495692 | null     | null      | null    | unlabelled |         | 0     |
 | 495693 | null     | null      | null    | unlabelled |         | 0     |
 | 549957 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 590969 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 725193 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 864692 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 896324 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 968947 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 979013 | v1:6     | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 91772  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 174211 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 236104 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 447622 | null     | null      | null    | unlabelled |         | 0     |
 | 447623 | v1:6     | ethernet1 | 1236::3 | 495685     |         | 0     |
 | 447624 | v1:6     | ethernet1 | 1236::3 | 495686     |         | 0     |
 | 447625 | v1:6     | ethernet1 | 1236::3 | 495687     |         | 0     |
 | 447626 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 447627 | null     | null      | null    | unlabelled |         | 0     |
 | 447628 | null     | null      | null    | unlabelled |         | 0     |
 | 447629 | null     | null      | null    | unlabelled |         | 0     |
 | 447630 | null     | null      | null    | unlabelled |         | 0     |
 | 447631 | null     | null      | null    | unlabelled |         | 0     |
 | 539291 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 591538 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 864054 | null     | null      | null    | unlabelled |         | 0     |
 | 864055 | v1:4     | ethernet1 | 1.1.3.3 | 235349     |         | 0     |
 | 864056 | v1:4     | ethernet1 | 1.1.3.3 | 235350     |         | 0     |
 | 864057 | v1:4     | ethernet1 | 1.1.3.3 | 235351     |         | 0     |
 | 864058 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 864059 | null     | null      | null    | unlabelled |         | 0     |
 | 864060 | null     | null      | null    | unlabelled |         | 0     |
 | 864061 | null     | null      | null    | unlabelled |         | 0     |
 | 864062 | null     | null      | null    | unlabelled |         | 0     |
 | 864063 | null     | null      | null    | unlabelled |         | 0     |
 | 909228 | v1:4     | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#