here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 50693  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 520977 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 622353 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 632304 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 766679 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 922151 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 57686  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 68134  | v1:6     | null  | null | unlabelled | bier    | 1456  |
 | 570728 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 712911 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 761091 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 925288 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 124081 | v1:6     | null  | null | unlabelled | bier    | 1456  |
 | 308308 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 417613 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 458161 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 607173 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 747266 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 432977  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 503746  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 692062  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 909626  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 974854  | v1:6     | null  | null | unlabelled | bier    | 936   |
 | 1023999 | tester:6 | null  | null | unlabelled | local   | 0     |
 |_________|__________|_______|______|____________|_________|_______|
r4#
r4#