here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 48      | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 30584   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 152269  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 356292  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 366361  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 512029  | null     | null      | null    | unlabelled |         | 0     |
 | 512030  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 512031  | v1:4     | ethernet1 | 1.1.1.2 | 615746     |         | 0     |
 | 512032  | v1:4     | ethernet1 | 1.1.1.2 | 615747     |         | 0     |
 | 512033  | v1:4     | ethernet1 | 1.1.1.2 | 615748     |         | 0     |
 | 512034  | null     | null      | null    | unlabelled |         | 0     |
 | 512035  | null     | null      | null    | unlabelled |         | 0     |
 | 512036  | null     | null      | null    | unlabelled |         | 0     |
 | 512037  | null     | null      | null    | unlabelled |         | 0     |
 | 512038  | null     | null      | null    | unlabelled |         | 0     |
 | 647608  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 728440  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 788210  | null     | null      | null    | unlabelled |         | 0     |
 | 788211  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 788212  | v1:6     | ethernet1 | 1234::2 | 918672     |         | 0     |
 | 788213  | v1:6     | ethernet1 | 1234::2 | 918673     |         | 0     |
 | 788214  | v1:6     | ethernet1 | 1234::2 | 918674     |         | 0     |
 | 788215  | null     | null      | null    | unlabelled |         | 0     |
 | 788216  | null     | null      | null    | unlabelled |         | 0     |
 | 788217  | null     | null      | null    | unlabelled |         | 0     |
 | 788218  | null     | null      | null    | unlabelled |         | 0     |
 | 788219  | null     | null      | null    | unlabelled |         | 0     |
 | 809575  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 954016  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1008268 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 6623    | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 34216   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 218364  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 366912  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 400472  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 411859  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 516150  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 615744  | null     | null      | null    | unlabelled |         | 0     |
 | 615745  | v1:4     | ethernet1 | 1.1.1.1 | 512030     |         | 1280  |
 | 615746  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 615747  | v1:4     | ethernet2 | 1.1.2.3 | 265654     |         | 640   |
 | 615748  | v1:4     | ethernet2 | 1.1.2.3 | 265655     |         | 640   |
 | 615749  | null     | null      | null    | unlabelled |         | 0     |
 | 615750  | null     | null      | null    | unlabelled |         | 0     |
 | 615751  | null     | null      | null    | unlabelled |         | 0     |
 | 615752  | null     | null      | null    | unlabelled |         | 0     |
 | 615753  | null     | null      | null    | unlabelled |         | 0     |
 | 723010  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 819164  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 913437  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 918670  | null     | null      | null    | unlabelled |         | 0     |
 | 918671  | v1:6     | ethernet1 | 1234::1 | 788211     |         | 1280  |
 | 918672  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 918673  | v1:6     | ethernet2 | 1235::3 | 685147     |         | 640   |
 | 918674  | v1:6     | ethernet2 | 1235::3 | 685148     |         | 640   |
 | 918675  | null     | null      | null    | unlabelled |         | 0     |
 | 918676  | null     | null      | null    | unlabelled |         | 0     |
 | 918677  | null     | null      | null    | unlabelled |         | 0     |
 | 918678  | null     | null      | null    | unlabelled |         | 0     |
 | 918679  | null     | null      | null    | unlabelled |         | 0     |
 | 944902  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1045604 | v1:4     | ethernet2 | 1.1.2.3 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 6750   | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 76682  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 85617  | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 181853 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 217527 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 265651 | null     | null      | null    | unlabelled |         | 0     |
 | 265652 | v1:4     | ethernet1 | 1.1.2.2 | 615745     |         | 640   |
 | 265653 | v1:4     | ethernet1 | 1.1.2.2 | 615746     |         | 640   |
 | 265654 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 265655 | v1:4     | ethernet2 | 1.1.3.4 | 884417     |         | 1280  |
 | 265656 | null     | null      | null    | unlabelled |         | 0     |
 | 265657 | null     | null      | null    | unlabelled |         | 0     |
 | 265658 | null     | null      | null    | unlabelled |         | 0     |
 | 265659 | null     | null      | null    | unlabelled |         | 0     |
 | 265660 | null     | null      | null    | unlabelled |         | 0     |
 | 399525 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 607787 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 685144 | null     | null      | null    | unlabelled |         | 0     |
 | 685145 | v1:6     | ethernet1 | 1235::2 | 918671     |         | 640   |
 | 685146 | v1:6     | ethernet1 | 1235::2 | 918672     |         | 640   |
 | 685147 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 685148 | v1:6     | ethernet2 | 1236::4 | 732447     |         | 1280  |
 | 685149 | null     | null      | null    | unlabelled |         | 0     |
 | 685150 | null     | null      | null    | unlabelled |         | 0     |
 | 685151 | null     | null      | null    | unlabelled |         | 0     |
 | 685152 | null     | null      | null    | unlabelled |         | 0     |
 | 685153 | null     | null      | null    | unlabelled |         | 0     |
 | 859058 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 898247 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 915088 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 950846 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 998039 | tester:4 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 102420 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 232850 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 303284 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 500344 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 687514 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 696532 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 732443 | null     | null      | null    | unlabelled |         | 0     |
 | 732444 | v1:6     | ethernet1 | 1236::3 | 685145     |         | 0     |
 | 732445 | v1:6     | ethernet1 | 1236::3 | 685146     |         | 0     |
 | 732446 | v1:6     | ethernet1 | 1236::3 | 685147     |         | 0     |
 | 732447 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 732448 | null     | null      | null    | unlabelled |         | 0     |
 | 732449 | null     | null      | null    | unlabelled |         | 0     |
 | 732450 | null     | null      | null    | unlabelled |         | 0     |
 | 732451 | null     | null      | null    | unlabelled |         | 0     |
 | 732452 | null     | null      | null    | unlabelled |         | 0     |
 | 884413 | null     | null      | null    | unlabelled |         | 0     |
 | 884414 | v1:4     | ethernet1 | 1.1.3.3 | 265652     |         | 0     |
 | 884415 | v1:4     | ethernet1 | 1.1.3.3 | 265653     |         | 0     |
 | 884416 | v1:4     | ethernet1 | 1.1.3.3 | 265654     |         | 0     |
 | 884417 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 884418 | null     | null      | null    | unlabelled |         | 0     |
 | 884419 | null     | null      | null    | unlabelled |         | 0     |
 | 884420 | null     | null      | null    | unlabelled |         | 0     |
 | 884421 | null     | null      | null    | unlabelled |         | 0     |
 | 884422 | null     | null      | null    | unlabelled |         | 0     |
 | 906550 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 907567 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 944482 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 961108 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#