here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 7026    | tester:6 | null  | null | unlabelled | local   | 0     |
 | 134122  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 149751  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 232730  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 595074  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 656895  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 768836  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 845289  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 880904  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 1040322 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 353176  | v1:4     | null  | null | unlabelled | bier    | 1144  |
 | 675853  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 725677  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 737448  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 765800  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 791424  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 890010  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 918407  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 989254  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 1012714 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 12120  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 176431 | v1:4     | null  | null | unlabelled | bier    | 1144  |
 | 257785 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 282963 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 320453 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 407710 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 627343 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 748125 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 753555 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 782588 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 102627 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 105402 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 106795 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 180694 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 332870 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 344626 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 376560 | v1:4     | null  | null | unlabelled | bier    | 624   |
 | 513147 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 856045 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 978818 | tester:4 | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#