here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 311218 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 356369 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 501998 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 679874 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 691859 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 692052 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 783441 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 872593 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 923709 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 995830 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 143556  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 323696  | v1:4     | null  | null | unlabelled | bier    | 1248  |
 | 371025  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 371891  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 402763  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 431102  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 500677  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 544995  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 839859  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1025471 | tester:4 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 41275  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 366022 | v1:4     | null  | null | unlabelled | bier    | 1248  |
 | 374548 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 456668 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 605126 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 693088 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 702590 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 778946 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 868557 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 980398 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 |________|__________|_______|______|____________|_________|_______|
r3#
r3#
here is the lib:
r4#
r4#
r4#show mpls forw
r4#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 32817  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 89218  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 112028 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 180150 | v1:4     | null  | null | unlabelled | bier    | 728   |
 | 351541 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 406332 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 523163 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 578716 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 854167 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 881578 | tester:6 | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#