here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 176407 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 197410 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 294631 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 299368 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 317189 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 318539 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 326041 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 785116 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 843497 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 963642 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 26855   | tester:6 | null  | null | unlabelled | local   | 0     |
 | 53806   | v1:6     | null  | null | unlabelled | local   | 0     |
 | 210441  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 233209  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 292748  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 416179  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 556247  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 648518  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 938632  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 1006904 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 322611  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 499223  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 527712  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 607466  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 627332  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 654050  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 808807  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 939893  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1015077 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 1020010 | v1:6     | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 51678  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 51818  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 84632  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 327742 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 559845 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 630892 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 838880 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 872069 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 899657 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 940860 | v1:4     | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#