here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 18370   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 155220  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 188189  | null     | null      | null    | unlabelled |         | 0     |
 | 188190  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 188191  | v1:4     | ethernet1 | 1.1.1.2 | 362926     |         | 0     |
 | 188192  | v1:4     | ethernet1 | 1.1.1.2 | 362927     |         | 0     |
 | 188193  | v1:4     | ethernet1 | 1.1.1.2 | 362928     |         | 0     |
 | 188194  | null     | null      | null    | unlabelled |         | 0     |
 | 188195  | null     | null      | null    | unlabelled |         | 0     |
 | 188196  | null     | null      | null    | unlabelled |         | 0     |
 | 188197  | null     | null      | null    | unlabelled |         | 0     |
 | 188198  | null     | null      | null    | unlabelled |         | 0     |
 | 229891  | null     | null      | null    | unlabelled |         | 0     |
 | 229892  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 229893  | v1:6     | ethernet1 | 1234::2 | 5186       |         | 0     |
 | 229894  | v1:6     | ethernet1 | 1234::2 | 5187       |         | 0     |
 | 229895  | v1:6     | ethernet1 | 1234::2 | 5188       |         | 0     |
 | 229896  | null     | null      | null    | unlabelled |         | 0     |
 | 229897  | null     | null      | null    | unlabelled |         | 0     |
 | 229898  | null     | null      | null    | unlabelled |         | 0     |
 | 229899  | null     | null      | null    | unlabelled |         | 0     |
 | 229900  | null     | null      | null    | unlabelled |         | 0     |
 | 557605  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 772343  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 782660  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 820072  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 914565  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 996884  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 1022776 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 1047517 | tester: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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 5184   | null     | null      | null    | unlabelled |         | 0     |
 | 5185   | v1:6     | ethernet1 | 1234::1 | 229892     |         | 1280  |
 | 5186   | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 5187   | v1:6     | ethernet2 | 1235::3 | 223760     |         | 640   |
 | 5188   | v1:6     | ethernet2 | 1235::3 | 223761     |         | 640   |
 | 5189   | null     | null      | null    | unlabelled |         | 0     |
 | 5190   | null     | null      | null    | unlabelled |         | 0     |
 | 5191   | null     | null      | null    | unlabelled |         | 0     |
 | 5192   | null     | null      | null    | unlabelled |         | 0     |
 | 5193   | null     | null      | null    | unlabelled |         | 0     |
 | 19158  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 362924 | null     | null      | null    | unlabelled |         | 0     |
 | 362925 | v1:4     | ethernet1 | 1.1.1.1 | 188190     |         | 1280  |
 | 362926 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 362927 | v1:4     | ethernet2 | 1.1.2.3 | 5340       |         | 640   |
 | 362928 | v1:4     | ethernet2 | 1.1.2.3 | 5341       |         | 640   |
 | 362929 | null     | null      | null    | unlabelled |         | 0     |
 | 362930 | null     | null      | null    | unlabelled |         | 0     |
 | 362931 | null     | null      | null    | unlabelled |         | 0     |
 | 362932 | null     | null      | null    | unlabelled |         | 0     |
 | 362933 | null     | null      | null    | unlabelled |         | 0     |
 | 379842 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 557554 | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 560690 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 592389 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 656439 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 675861 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 693973 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 791863 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 862876 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 931600 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 963732 | v1:4     | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 5337   | null     | null      | null    | unlabelled |         | 0     |
 | 5338   | v1:4     | ethernet1 | 1.1.2.2 | 362925     |         | 640   |
 | 5339   | v1:4     | ethernet1 | 1.1.2.2 | 362926     |         | 640   |
 | 5340   | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 5341   | v1:4     | ethernet2 | 1.1.3.4 | 702568     |         | 1280  |
 | 5342   | null     | null      | null    | unlabelled |         | 0     |
 | 5343   | null     | null      | null    | unlabelled |         | 0     |
 | 5344   | null     | null      | null    | unlabelled |         | 0     |
 | 5345   | null     | null      | null    | unlabelled |         | 0     |
 | 5346   | null     | null      | null    | unlabelled |         | 0     |
 | 102630 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 126011 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 134357 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 210056 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 223757 | null     | null      | null    | unlabelled |         | 0     |
 | 223758 | v1:6     | ethernet1 | 1235::2 | 5185       |         | 640   |
 | 223759 | v1:6     | ethernet1 | 1235::2 | 5186       |         | 640   |
 | 223760 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 223761 | v1:6     | ethernet2 | 1236::4 | 226668     |         | 1280  |
 | 223762 | null     | null      | null    | unlabelled |         | 0     |
 | 223763 | null     | null      | null    | unlabelled |         | 0     |
 | 223764 | null     | null      | null    | unlabelled |         | 0     |
 | 223765 | null     | null      | null    | unlabelled |         | 0     |
 | 223766 | null     | null      | null    | unlabelled |         | 0     |
 | 256275 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 486205 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 489272 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 652367 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 656883 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 877868 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 940906 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 967312 | tester: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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 90709   | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 101045  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 166729  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 226664  | null     | null      | null    | unlabelled |         | 0     |
 | 226665  | v1:6     | ethernet1 | 1236::3 | 223758     |         | 0     |
 | 226666  | v1:6     | ethernet1 | 1236::3 | 223759     |         | 0     |
 | 226667  | v1:6     | ethernet1 | 1236::3 | 223760     |         | 0     |
 | 226668  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 226669  | null     | null      | null    | unlabelled |         | 0     |
 | 226670  | null     | null      | null    | unlabelled |         | 0     |
 | 226671  | null     | null      | null    | unlabelled |         | 0     |
 | 226672  | null     | null      | null    | unlabelled |         | 0     |
 | 226673  | null     | null      | null    | unlabelled |         | 0     |
 | 457342  | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 665875  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 702564  | null     | null      | null    | unlabelled |         | 0     |
 | 702565  | v1:4     | ethernet1 | 1.1.3.3 | 5338       |         | 0     |
 | 702566  | v1:4     | ethernet1 | 1.1.3.3 | 5339       |         | 0     |
 | 702567  | v1:4     | ethernet1 | 1.1.3.3 | 5340       |         | 0     |
 | 702568  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 702569  | null     | null      | null    | unlabelled |         | 0     |
 | 702570  | null     | null      | null    | unlabelled |         | 0     |
 | 702571  | null     | null      | null    | unlabelled |         | 0     |
 | 702572  | null     | null      | null    | unlabelled |         | 0     |
 | 702573  | null     | null      | null    | unlabelled |         | 0     |
 | 723288  | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 818523  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 921776  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 928565  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1027242 | tester:6 | null      | null    | unlabelled | local   | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r4#
r4#