here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 79883  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 187790 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 277611 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 375603 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 563543 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 696128 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 788583 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 955223 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 965817 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 978913 | v1:6     | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 106825  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 176316  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 192498  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 275979  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 311216  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 336366  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 699852  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 982349  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 996557  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1028349 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 98561   | tester:4 | null  | null | unlabelled | local   | 0     |
 | 284996  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 299065  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 382391  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 394777  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 412684  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 813752  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 858535  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 877004  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1029488 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 28902  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 31534  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 202753 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 232926 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 280026 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 295966 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 624967 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 816179 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 938939 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 992126 | tester:6 | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#