here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 59292  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 100611 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 426500 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 467905 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 526303 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 974688 | tester: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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 30138  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 641768 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 710350 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 778066 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 880124 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 890554 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 103996  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 166038  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 929727  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 933494  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 1003703 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 1020328 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 41824  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 298898 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 307883 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 320809 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 571526 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 622417 | tester:6 | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#