here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 394247 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 689204 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 697604 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 814729 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 876715 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 889341 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 75200   | v1:4     | null  | null | unlabelled | local   | 0     |
 | 372468  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 627523  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 689473  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 941444  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 1042141 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 175098 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 390671 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 682207 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 705273 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 859584 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 944062 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 |________|__________|_______|______|____________|_________|_______|
r3#
r3#
here is the lib:
r4#
r4#
r4#show mpls forw
r4#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 45977  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 97216  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 302814 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 633110 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 940254 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 960344 | v1:6     | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#