here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 49658   | tester:6 | null  | null | unlabelled | local   | 0     |
 | 52536   | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 362717  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 573602  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 596908  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 633076  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 852158  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 992389  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1027823 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1043056 | v1:4     | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 18881  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 54271  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 95999  | v1:4     | null  | null | unlabelled | bier    | 1456  |
 | 249612 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 311735 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 397275 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 543769 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 595746 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 815796 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 945721 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 61852  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 175508 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 197653 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 228855 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 240598 | v1:4     | null  | null | unlabelled | bier    | 1456  |
 | 372873 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 512481 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 519238 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 609181 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 751063 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 90049  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 101015 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 308664 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 320237 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 389025 | v1:4     | null  | null | unlabelled | bier    | 936   |
 | 492903 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 497413 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 576487 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 588996 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 629880 | tester:4 | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#