here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface | hop  | label      | targets | bytes |
 |---------|----------|-------|------|------------|---------|-------|
 | 197167  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 323483  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 472446  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 497433  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 505558  | v1:4     | null  | null | unlabelled | bier    | 520   |
 | 643952  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 840184  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 897916  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 956627  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1015687 | 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 |
 |--------|----------|-------|------|------------|---------|-------|
 | 51449  | v1:6     | null  | null | unlabelled | local   | 0     |
 | 53117  | v1:4     | null  | null | unlabelled | bier    | 1352  |
 | 62848  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 73672  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 143925 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 256934 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 402559 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 416151 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 486733 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 709379 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 |________|__________|_______|______|____________|_________|_______|
r2#
r2#
here is the lib:
r3#
r3#
r3#show mpls forw
r3#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~|~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface | hop  | label      | targets | bytes |
 |--------|----------|-------|------|------------|---------|-------|
 | 84573  | v1:4     | null  | null | unlabelled | bier    | 1352  |
 | 215242 | v1:6     | null  | null | unlabelled | bier    | 1040  |
 | 258455 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 262086 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 323926 | tester:4 | null  | null | unlabelled | local   | 0     |
 | 326292 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 462285 | tester:6 | null  | null | unlabelled | local   | 0     |
 | 667185 | v1:6     | null  | null | unlabelled | local   | 0     |
 | 883677 | v1:4     | null  | null | unlabelled | local   | 0     |
 | 980924 | tester: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 |
 |---------|----------|-------|------|------------|---------|-------|
 | 81549   | v1:6     | null  | null | unlabelled | local   | 0     |
 | 215220  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 514271  | v1:4     | null  | null | unlabelled | local   | 0     |
 | 527383  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 543596  | tester:6 | null  | null | unlabelled | local   | 0     |
 | 546595  | v1:6     | null  | null | unlabelled | bier    | 520   |
 | 579331  | v1:4     | null  | null | unlabelled | bier    | 832   |
 | 657755  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 823438  | tester:4 | null  | null | unlabelled | local   | 0     |
 | 1011409 | tester:4 | null  | null | unlabelled | local   | 0     |
 |_________|__________|_______|______|____________|_________|_______|
r4#
r4#