here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 63730   | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 290362  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 351928  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 474716  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 541861  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 704962  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 737524  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 749868  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 885610  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1023081 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 4100    | tester:6 | null  | null | unlabelled | local   | 0     |
 | 36931   | v1:6     | null  | null | unlabelled | local   | 0     |
 | 120026  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 137943  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 310480  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 427251  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 527718  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 544328  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 687056  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1033298 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 103341 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 134421 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 271629 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 422274 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 433929 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 647012 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 697275 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 758510 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 868500 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 995949 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 49672   | v1:4     | null  | null | unlabelled | local   | 0     |
 | 148028  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 166858  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 177374  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 221044  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 530197  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 535253  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 996757  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 1017590 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1037155 | tester:6 | null  | null | unlabelled | local   | 0     |
 |_________|__________|_______|______|____________|_________|_______|
r4#
r4#