here is the lib:
r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 46344  | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 | 55088  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 256662 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 301959 | null     | null      | null    | unlabelled |         | 0     |
 | 301960 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 301961 | v1:6     | ethernet1 | 1234::2 | 1007062    |         | 0     |
 | 301962 | v1:6     | ethernet1 | 1234::2 | 1007063    |         | 0     |
 | 301963 | v1:6     | ethernet1 | 1234::2 | 1007064    |         | 0     |
 | 301964 | null     | null      | null    | unlabelled |         | 0     |
 | 301965 | null     | null      | null    | unlabelled |         | 0     |
 | 301966 | null     | null      | null    | unlabelled |         | 0     |
 | 301967 | null     | null      | null    | unlabelled |         | 0     |
 | 301968 | null     | null      | null    | unlabelled |         | 0     |
 | 322843 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 340960 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 680032 | null     | null      | null    | unlabelled |         | 0     |
 | 680033 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 680034 | v1:4     | ethernet1 | 1.1.1.2 | 671767     |         | 0     |
 | 680035 | v1:4     | ethernet1 | 1.1.1.2 | 671768     |         | 0     |
 | 680036 | v1:4     | ethernet1 | 1.1.1.2 | 671769     |         | 0     |
 | 680037 | null     | null      | null    | unlabelled |         | 0     |
 | 680038 | null     | null      | null    | unlabelled |         | 0     |
 | 680039 | null     | null      | null    | unlabelled |         | 0     |
 | 680040 | null     | null      | null    | unlabelled |         | 0     |
 | 680041 | null     | null      | null    | unlabelled |         | 0     |
 | 846744 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 185620  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 243375  | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 440399  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 596209  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 623300  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 671765  | null     | null      | null    | unlabelled |         | 0     |
 | 671766  | v1:4     | ethernet1 | 1.1.1.1 | 680033     |         | 1280  |
 | 671767  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 671768  | v1:4     | ethernet2 | 1.1.2.3 | 305739     |         | 640   |
 | 671769  | v1:4     | ethernet2 | 1.1.2.3 | 305740     |         | 640   |
 | 671770  | null     | null      | null    | unlabelled |         | 0     |
 | 671771  | null     | null      | null    | unlabelled |         | 0     |
 | 671772  | null     | null      | null    | unlabelled |         | 0     |
 | 671773  | null     | null      | null    | unlabelled |         | 0     |
 | 671774  | null     | null      | null    | unlabelled |         | 0     |
 | 917425  | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 | 937748  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 1007060 | null     | null      | null    | unlabelled |         | 0     |
 | 1007061 | v1:6     | ethernet1 | 1234::1 | 301960     |         | 1280  |
 | 1007062 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 1007063 | v1:6     | ethernet2 | 1235::3 | 679074     |         | 640   |
 | 1007064 | v1:6     | ethernet2 | 1235::3 | 679075     |         | 640   |
 | 1007065 | null     | null      | null    | unlabelled |         | 0     |
 | 1007066 | null     | null      | null    | unlabelled |         | 0     |
 | 1007067 | null     | null      | null    | unlabelled |         | 0     |
 | 1007068 | null     | null      | null    | unlabelled |         | 0     |
 | 1007069 | null     | null      | null    | unlabelled |         | 0     |
 | 1007711 | 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 |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 252563 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 305736 | null     | null      | null    | unlabelled |         | 0     |
 | 305737 | v1:4     | ethernet1 | 1.1.2.2 | 671766     |         | 640   |
 | 305738 | v1:4     | ethernet1 | 1.1.2.2 | 671767     |         | 640   |
 | 305739 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 305740 | v1:4     | ethernet2 | 1.1.3.4 | 771654     |         | 1280  |
 | 305741 | null     | null      | null    | unlabelled |         | 0     |
 | 305742 | null     | null      | null    | unlabelled |         | 0     |
 | 305743 | null     | null      | null    | unlabelled |         | 0     |
 | 305744 | null     | null      | null    | unlabelled |         | 0     |
 | 305745 | null     | null      | null    | unlabelled |         | 0     |
 | 415980 | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 507339 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 679071 | null     | null      | null    | unlabelled |         | 0     |
 | 679072 | v1:6     | ethernet1 | 1235::2 | 1007061    |         | 640   |
 | 679073 | v1:6     | ethernet1 | 1235::2 | 1007062    |         | 640   |
 | 679074 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 679075 | v1:6     | ethernet2 | 1236::4 | 942097     |         | 1280  |
 | 679076 | null     | null      | null    | unlabelled |         | 0     |
 | 679077 | null     | null      | null    | unlabelled |         | 0     |
 | 679078 | null     | null      | null    | unlabelled |         | 0     |
 | 679079 | null     | null      | null    | unlabelled |         | 0     |
 | 679080 | null     | null      | null    | unlabelled |         | 0     |
 | 751238 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 751685 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 756981 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 916057 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 926196 | 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 |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 90656   | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 635700  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 675278  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 771650  | null     | null      | null    | unlabelled |         | 0     |
 | 771651  | v1:4     | ethernet1 | 1.1.3.3 | 305737     |         | 0     |
 | 771652  | v1:4     | ethernet1 | 1.1.3.3 | 305738     |         | 0     |
 | 771653  | v1:4     | ethernet1 | 1.1.3.3 | 305739     |         | 0     |
 | 771654  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 771655  | null     | null      | null    | unlabelled |         | 0     |
 | 771656  | null     | null      | null    | unlabelled |         | 0     |
 | 771657  | null     | null      | null    | unlabelled |         | 0     |
 | 771658  | null     | null      | null    | unlabelled |         | 0     |
 | 771659  | null     | null      | null    | unlabelled |         | 0     |
 | 794775  | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 | 842426  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 942093  | null     | null      | null    | unlabelled |         | 0     |
 | 942094  | v1:6     | ethernet1 | 1236::3 | 679072     |         | 0     |
 | 942095  | v1:6     | ethernet1 | 1236::3 | 679073     |         | 0     |
 | 942096  | v1:6     | ethernet1 | 1236::3 | 679074     |         | 0     |
 | 942097  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 942098  | null     | null      | null    | unlabelled |         | 0     |
 | 942099  | null     | null      | null    | unlabelled |         | 0     |
 | 942100  | null     | null      | null    | unlabelled |         | 0     |
 | 942101  | null     | null      | null    | unlabelled |         | 0     |
 | 942102  | null     | null      | null    | unlabelled |         | 0     |
 | 1028023 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r4#
r4#