here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 165918  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 199561  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 218009  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 222330  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 244678  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 586169  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 789934  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 913017  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1024275 | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 1043141 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 164458 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 173239 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 202281 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 260863 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 285668 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 410454 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 519323 | v1:4     | null  | null | unlabelled | bier    | 1144  |
 | 520558 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 572620 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 703641 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 19833  | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 59306  | v1:4     | null  | null | unlabelled | bier    | 1144  |
 | 83760  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 178053 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 271555 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 550428 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 610629 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 686046 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 784259 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 947686 | v1:4     | 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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 61345   | tester:4 | null  | null | unlabelled | local   | 0     |
 | 361789  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 368912  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 371071  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 522474  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 561229  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 573561  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 863082  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 899445  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 1033844 | v1:4     | null  | null | unlabelled | bier    | 624   |
 |_________|__________|_______|______|____________|_________|_______|
r4#
r4#