here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 500148  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 512518  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 658724  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 816182  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 903814  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1043896 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 17967  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 217170 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 530555 | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 746777 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 774324 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 992090 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 57395  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 188084 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 210029 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 323754 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 505496 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 981407 | v1:4     | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 181228 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 394134 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 414120 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 491487 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 635739 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 978255 | tester:6 | null  | null | unlabelled | local   | 0     |
 |________|__________|_______|______|____________|_________|_______|
r4#
r4#