here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 31004   | tester:6 | null  | null | unlabelled | local   | 0     |
 | 44320   | tester:6 | null  | null | unlabelled | local   | 0     |
 | 218289  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 271645  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 301785  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 773091  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 828373  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 846958  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 955629  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1033168 | v1:4     | null  | null | unlabelled | bier    | 520   |
 |_________|__________|_______|______|____________|_________|_______|
r1#
r1#
here is the lib:
r2#
r2#
r2#show mpls forw
r2#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 42794  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 144747 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 274656 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 310911 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 457677 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 607904 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 639677 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 666085 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 696558 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 975296 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 31947  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 52055  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 64001  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 282397 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 325628 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 725316 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 821364 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 831430 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 897780 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 964580 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 169026  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 233581  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 322204  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 555775  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 677716  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 704468  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 842325  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 869934  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 890499  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1003070 | v1:6     | null  | null | unlabelled | local   | 0     |
 |_________|__________|_______|______|____________|_________|_______|
r4#
r4#