here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 220376 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 700416 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 722780 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 723852 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 765226 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 978333 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 135177 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 136305 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 225586 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 391470 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 527799 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 842160 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 |________|__________|_______|______|____________|_________|_______|
r2#
r2#
here is the lib:
r3#
r3#
r3#show mpls forw
r3#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 50642  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 522667 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 529343 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 691891 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 713281 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 789004 | v1:4     | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 185992 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 404272 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 435318 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 750584 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 774859 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 824436 | v1:6     | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#