here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 114018 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 127210 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 259223 | null     | null      | null    | unlabelled |         | 0     |
 | 259224 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 259225 | v1:4     | ethernet1 | 1.1.1.2 | 547032     |         | 0     |
 | 259226 | v1:4     | ethernet1 | 1.1.1.2 | 547033     |         | 0     |
 | 259227 | v1:4     | ethernet1 | 1.1.1.2 | 547034     |         | 0     |
 | 259228 | null     | null      | null    | unlabelled |         | 0     |
 | 259229 | null     | null      | null    | unlabelled |         | 0     |
 | 259230 | null     | null      | null    | unlabelled |         | 0     |
 | 259231 | null     | null      | null    | unlabelled |         | 0     |
 | 259232 | null     | null      | null    | unlabelled |         | 0     |
 | 265112 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 405197 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 420473 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 548203 | null     | null      | null    | unlabelled |         | 0     |
 | 548204 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 548205 | v1:6     | ethernet1 | 1234::2 | 252003     |         | 0     |
 | 548206 | v1:6     | ethernet1 | 1234::2 | 252004     |         | 0     |
 | 548207 | v1:6     | ethernet1 | 1234::2 | 252005     |         | 0     |
 | 548208 | null     | null      | null    | unlabelled |         | 0     |
 | 548209 | null     | null      | null    | unlabelled |         | 0     |
 | 548210 | null     | null      | null    | unlabelled |         | 0     |
 | 548211 | null     | null      | null    | unlabelled |         | 0     |
 | 548212 | null     | null      | null    | unlabelled |         | 0     |
 | 562032 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 562154 | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 816645 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 942744 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 992076 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 15361  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 67759  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 74617  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 162539 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 252001 | null     | null      | null    | unlabelled |         | 0     |
 | 252002 | v1:6     | ethernet1 | 1234::1 | 548204     |         | 1280  |
 | 252003 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 252004 | v1:6     | ethernet2 | 1235::3 | 192444     |         | 640   |
 | 252005 | v1:6     | ethernet2 | 1235::3 | 192445     |         | 640   |
 | 252006 | null     | null      | null    | unlabelled |         | 0     |
 | 252007 | null     | null      | null    | unlabelled |         | 0     |
 | 252008 | null     | null      | null    | unlabelled |         | 0     |
 | 252009 | null     | null      | null    | unlabelled |         | 0     |
 | 252010 | null     | null      | null    | unlabelled |         | 0     |
 | 314459 | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 446504 | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 486976 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 547030 | null     | null      | null    | unlabelled |         | 0     |
 | 547031 | v1:4     | ethernet1 | 1.1.1.1 | 259224     |         | 1280  |
 | 547032 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 547033 | v1:4     | ethernet2 | 1.1.2.3 | 553338     |         | 640   |
 | 547034 | v1:4     | ethernet2 | 1.1.2.3 | 553339     |         | 640   |
 | 547035 | null     | null      | null    | unlabelled |         | 0     |
 | 547036 | null     | null      | null    | unlabelled |         | 0     |
 | 547037 | null     | null      | null    | unlabelled |         | 0     |
 | 547038 | null     | null      | null    | unlabelled |         | 0     |
 | 547039 | null     | null      | null    | unlabelled |         | 0     |
 | 591325 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 668769 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 735159 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 765268 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 937567 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 85256   | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 192441  | null     | null      | null    | unlabelled |         | 0     |
 | 192442  | v1:6     | ethernet1 | 1235::2 | 252002     |         | 640   |
 | 192443  | v1:6     | ethernet1 | 1235::2 | 252003     |         | 640   |
 | 192444  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 192445  | v1:6     | ethernet2 | 1236::4 | 84513      |         | 1280  |
 | 192446  | null     | null      | null    | unlabelled |         | 0     |
 | 192447  | null     | null      | null    | unlabelled |         | 0     |
 | 192448  | null     | null      | null    | unlabelled |         | 0     |
 | 192449  | null     | null      | null    | unlabelled |         | 0     |
 | 192450  | null     | null      | null    | unlabelled |         | 0     |
 | 260284  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 290365  | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 378128  | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 471194  | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 478876  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 553335  | null     | null      | null    | unlabelled |         | 0     |
 | 553336  | v1:4     | ethernet1 | 1.1.2.2 | 547031     |         | 640   |
 | 553337  | v1:4     | ethernet1 | 1.1.2.2 | 547032     |         | 640   |
 | 553338  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 553339  | v1:4     | ethernet2 | 1.1.3.4 | 400064     |         | 1280  |
 | 553340  | null     | null      | null    | unlabelled |         | 0     |
 | 553341  | null     | null      | null    | unlabelled |         | 0     |
 | 553342  | null     | null      | null    | unlabelled |         | 0     |
 | 553343  | null     | null      | null    | unlabelled |         | 0     |
 | 553344  | null     | null      | null    | unlabelled |         | 0     |
 | 669318  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 735931  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 828001  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 841666  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 1013791 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 1037174 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 23217  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 84509  | null     | null      | null    | unlabelled |         | 0     |
 | 84510  | v1:6     | ethernet1 | 1236::3 | 192442     |         | 0     |
 | 84511  | v1:6     | ethernet1 | 1236::3 | 192443     |         | 0     |
 | 84512  | v1:6     | ethernet1 | 1236::3 | 192444     |         | 0     |
 | 84513  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 84514  | null     | null      | null    | unlabelled |         | 0     |
 | 84515  | null     | null      | null    | unlabelled |         | 0     |
 | 84516  | null     | null      | null    | unlabelled |         | 0     |
 | 84517  | null     | null      | null    | unlabelled |         | 0     |
 | 84518  | null     | null      | null    | unlabelled |         | 0     |
 | 148780 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 369906 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 400060 | null     | null      | null    | unlabelled |         | 0     |
 | 400061 | v1:4     | ethernet1 | 1.1.3.3 | 553336     |         | 0     |
 | 400062 | v1:4     | ethernet1 | 1.1.3.3 | 553337     |         | 0     |
 | 400063 | v1:4     | ethernet1 | 1.1.3.3 | 553338     |         | 0     |
 | 400064 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 400065 | null     | null      | null    | unlabelled |         | 0     |
 | 400066 | null     | null      | null    | unlabelled |         | 0     |
 | 400067 | null     | null      | null    | unlabelled |         | 0     |
 | 400068 | null     | null      | null    | unlabelled |         | 0     |
 | 400069 | null     | null      | null    | unlabelled |         | 0     |
 | 455457 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 529701 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 563710 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 596629 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 712485 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 745685 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 892394 | v1:6     | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#