here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 1460   | tester:6 | null  | null | unlabelled | local   | 0     |
 | 31978  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 74233  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 273350 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 273693 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 597667 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 623336 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 670880 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 679315 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 826815 | v1:6     | null  | null | unlabelled | bier    | 520   |
 |________|__________|_______|______|____________|_________|_______|
r1#
r1#
here is the lib:
r2#
r2#
r2#show mpls forw
r2#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 29438   | tester:6 | null  | null | unlabelled | local   | 0     |
 | 53496   | tester:4 | null  | null | unlabelled | local   | 0     |
 | 154420  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 368493  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 417496  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 537226  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 836043  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 885179  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 943479  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1013321 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 33595  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 168945 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 247495 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 301516 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 328350 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 389094 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 448847 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 526481 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 545570 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 916934 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 19421  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 26024  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 296716 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 376405 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 531368 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 648145 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 739687 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 902024 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 913941 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 929278 | tester:6 | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#