here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 318709 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 502106 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 593151 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 613104 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 634642 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 642019 | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 688379 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 703733 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 818226 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 960131 | v1:6     | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 24119   | v1:4     | null  | null | unlabelled | local   | 0     |
 | 125210  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 134367  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 327270  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 352602  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 456276  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 591409  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 631943  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 769457  | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 1026955 | tester:4 | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 64526   | v1:4     | null  | null | unlabelled | bier    | 1040  |
 | 115374  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 292260  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 729114  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 741030  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 745992  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 882183  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 961113  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1022265 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1029140 | v1:6     | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 108201  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 118208  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 413594  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 465979  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 546617  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 563192  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 802893  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 845476  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 849779  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 1000389 | tester:6 | null  | null | unlabelled | local   | 0     |
 |_________|__________|_______|______|____________|_________|_______|
r4#
r4#