here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 73127   | tester:6 | null  | null | unlabelled | local   | 0     |
 | 128132  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 201763  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 221250  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 224370  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 346265  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 368524  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 408804  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 567731  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 1029903 | tester:6 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 15448  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 25422  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 85225  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 111713 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 253000 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 326871 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 373639 | v1:4     | null  | null | unlabelled | bier    | 1352  |
 | 578992 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 878677 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 898717 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 137302 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 275353 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 421052 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 643601 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 647724 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 650788 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 758332 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 800742 | v1:4     | null  | null | unlabelled | bier    | 1352  |
 | 925670 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 932844 | tester: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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 105048  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 158278  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 197702  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 662020  | v1:4     | null  | null | unlabelled | bier    | 832   |
 | 696578  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 941511  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 953072  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1028089 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1040688 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1043191 | v1:6     | null  | null | unlabelled | bier    | 520   |
 |_________|__________|_______|______|____________|_________|_______|
r4#
r4#