here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 55870  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 218118 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 417569 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 467874 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 682006 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 977689 | v1:4     | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 59312  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 312631 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 417117 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 637135 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 693158 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 938314 | v1:4     | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 101380 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 124251 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 402480 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 606357 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 787345 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 939886 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 45089  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 103539 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 128230 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 331411 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 487454 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 905544 | tester:6 | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#