here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 56401  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 99178  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 261575 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 328814 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 403051 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 465043 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 514930 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 804054 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 830940 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 919835 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 77520   | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 143270  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 439353  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 557320  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 592978  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 598182  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 786883  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 863169  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 958708  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1045520 | v1:6     | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 154421 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 206609 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 315613 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 578696 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 589211 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 615844 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 624127 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 662352 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 762304 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 950710 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 113945 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 123459 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 208544 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 301527 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 352260 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 573338 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 580772 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 888000 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 953267 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 995335 | v1:6     | null  | null | unlabelled | bier    | 520   |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#