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Example: sr in chain

r1: 

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hostname r1
buggy
!
logging file debug ../binTmp/zzz52r1-log.run
!
access-list test4
 sequence 10 deny 1 any all any all
 sequence 20 permit all any all any all
 exit
!
access-list test6
 sequence 10 deny all 4321:: ffff:: all 4321:: ffff:: all
 sequence 20 permit all any all any all
 exit
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 exit
!
router lsrp4 1
 vrf v1
 router-id 4.4.4.1
 segrout 10 1
 redistribute connected
 exit
!
router lsrp6 1
 vrf v1
 router-id 6.6.6.1
 segrout 10 1
 redistribute connected
 exit
!
interface loopback1
 no description
 vrf forwarding v1
 ipv4 address 2.2.2.1 255.255.255.255
 ipv6 address 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 no shutdown
 no log-link-change
 exit
!
interface ethernet1
 no description
 vrf forwarding v1
 ipv4 address 1.1.1.1 255.255.255.0
 ipv4 access-group-in test4
 ipv6 address 1234::1 ffff::
 ipv6 access-group-in test6
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
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server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end

r2: 

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hostname r2
buggy
!
logging file debug ../binTmp/zzz52r2-log.run
!
access-list test4
 sequence 10 deny 1 any all any all
 sequence 20 permit all any all any all
 exit
!
access-list test6
 sequence 10 deny all 4321:: ffff:: all 4321:: ffff:: all
 sequence 20 permit all any all any all
 exit
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 exit
!
router lsrp4 1
 vrf v1
 router-id 4.4.4.2
 segrout 10 2
 redistribute connected
 exit
!
router lsrp6 1
 vrf v1
 router-id 6.6.6.2
 segrout 10 2
 redistribute connected
 exit
!
interface loopback1
 no description
 vrf forwarding v1
 ipv4 address 2.2.2.2 255.255.255.255
 ipv6 address 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 no shutdown
 no log-link-change
 exit
!
interface ethernet1
 no description
 vrf forwarding v1
 ipv4 address 1.1.1.2 255.255.255.0
 ipv4 access-group-in test4
 ipv6 address 1234::2 ffff::
 ipv6 access-group-in test6
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
interface ethernet2
 no description
 vrf forwarding v1
 ipv4 address 1.1.2.2 255.255.255.0
 ipv4 access-group-in test4
 ipv6 address 1235::2 ffff::
 ipv6 access-group-in test6
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
!
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!
server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end

r3: 

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hostname r3
buggy
!
logging file debug ../binTmp/zzz52r3-log.run
!
access-list test4
 sequence 10 deny 1 any all any all
 sequence 20 permit all any all any all
 exit
!
access-list test6
 sequence 10 deny all 4321:: ffff:: all 4321:: ffff:: all
 sequence 20 permit all any all any all
 exit
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 exit
!
router lsrp4 1
 vrf v1
 router-id 4.4.4.3
 segrout 10 3
 redistribute connected
 exit
!
router lsrp6 1
 vrf v1
 router-id 6.6.6.3
 segrout 10 3
 redistribute connected
 exit
!
interface loopback1
 no description
 vrf forwarding v1
 ipv4 address 2.2.2.3 255.255.255.255
 ipv6 address 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 no shutdown
 no log-link-change
 exit
!
interface ethernet1
 no description
 vrf forwarding v1
 ipv4 address 1.1.2.3 255.255.255.0
 ipv4 access-group-in test4
 ipv6 address 1235::3 ffff::
 ipv6 access-group-in test6
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
interface ethernet2
 no description
 vrf forwarding v1
 ipv4 address 1.1.3.3 255.255.255.0
 ipv4 access-group-in test4
 ipv6 address 1236::3 ffff::
 ipv6 access-group-in test6
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
!
!
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!
server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end

r4: 

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hostname r4
buggy
!
logging file debug ../binTmp/zzz52r4-log.run
!
access-list test4
 sequence 10 deny 1 any all any all
 sequence 20 permit all any all any all
 exit
!
access-list test6
 sequence 10 deny all 4321:: ffff:: all 4321:: ffff:: all
 sequence 20 permit all any all any all
 exit
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 exit
!
router lsrp4 1
 vrf v1
 router-id 4.4.4.4
 segrout 10 4
 redistribute connected
 exit
!
router lsrp6 1
 vrf v1
 router-id 6.6.6.4
 segrout 10 4
 redistribute connected
 exit
!
interface loopback1
 no description
 vrf forwarding v1
 ipv4 address 2.2.2.4 255.255.255.255
 ipv6 address 4321::4 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 no shutdown
 no log-link-change
 exit
!
interface ethernet1
 no description
 vrf forwarding v1
 ipv4 address 1.1.3.4 255.255.255.0
 ipv4 access-group-in test4
 ipv6 address 1236::4 ffff::
 ipv6 access-group-in test6
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end


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r1#
r1#
r1#show mpls forw
r1#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 24588   | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 108284  | null     | null      | null    | unlabelled |         | 0     |
 | 108285  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 108286  | v1:4     | ethernet1 | 1.1.1.2 | 952392     |         | 0     |
 | 108287  | v1:4     | ethernet1 | 1.1.1.2 | 952393     |         | 0     |
 | 108288  | v1:4     | ethernet1 | 1.1.1.2 | 952394     |         | 0     |
 | 108289  | null     | null      | null    | unlabelled |         | 0     |
 | 108290  | null     | null      | null    | unlabelled |         | 0     |
 | 108291  | null     | null      | null    | unlabelled |         | 0     |
 | 108292  | null     | null      | null    | unlabelled |         | 0     |
 | 108293  | null     | null      | null    | unlabelled |         | 0     |
 | 178602  | v1:6     | ethernet1 | 1234::2 | 3          |         | 0     |
 | 573709  | null     | null      | null    | unlabelled |         | 0     |
 | 573710  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 573711  | v1:6     | ethernet1 | 1234::2 | 168949     |         | 0     |
 | 573712  | v1:6     | ethernet1 | 1234::2 | 168950     |         | 0     |
 | 573713  | v1:6     | ethernet1 | 1234::2 | 168951     |         | 0     |
 | 573714  | null     | null      | null    | unlabelled |         | 0     |
 | 573715  | null     | null      | null    | unlabelled |         | 0     |
 | 573716  | null     | null      | null    | unlabelled |         | 0     |
 | 573717  | null     | null      | null    | unlabelled |         | 0     |
 | 573718  | null     | null      | null    | unlabelled |         | 0     |
 | 632674  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 785360  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 960848  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1000362 | v1:4     | ethernet1 | 1.1.1.2 | 3          |         | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r1#
r1#

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r2#
r2#
r2#show mpls forw
r2#show mpls forw
 |~~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label   | vrf      | iface     | hop     | label      | targets | bytes |
 |---------|----------|-----------|---------|------------|---------|-------|
 | 93298   | v1:4     | ethernet2 | 1.1.2.3 | 3          |         | 0     |
 | 168947  | null     | null      | null    | unlabelled |         | 0     |
 | 168948  | v1:6     | ethernet1 | 1234::1 | 573710     |         | 1280  |
 | 168949  | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 168950  | v1:6     | ethernet2 | 1235::3 | 918932     |         | 640   |
 | 168951  | v1:6     | ethernet2 | 1235::3 | 918933     |         | 640   |
 | 168952  | null     | null      | null    | unlabelled |         | 0     |
 | 168953  | null     | null      | null    | unlabelled |         | 0     |
 | 168954  | null     | null      | null    | unlabelled |         | 0     |
 | 168955  | null     | null      | null    | unlabelled |         | 0     |
 | 168956  | null     | null      | null    | unlabelled |         | 0     |
 | 627016  | v1:6     | ethernet1 | 1234::1 | 3          |         | 0     |
 | 708470  | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 747962  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 766231  | v1:6     | ethernet2 | 1235::3 | 3          |         | 0     |
 | 947016  | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 952390  | null     | null      | null    | unlabelled |         | 0     |
 | 952391  | v1:4     | ethernet1 | 1.1.1.1 | 108285     |         | 1280  |
 | 952392  | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 952393  | v1:4     | ethernet2 | 1.1.2.3 | 876032     |         | 640   |
 | 952394  | v1:4     | ethernet2 | 1.1.2.3 | 876033     |         | 640   |
 | 952395  | null     | null      | null    | unlabelled |         | 0     |
 | 952396  | null     | null      | null    | unlabelled |         | 0     |
 | 952397  | null     | null      | null    | unlabelled |         | 0     |
 | 952398  | null     | null      | null    | unlabelled |         | 0     |
 | 952399  | null     | null      | null    | unlabelled |         | 0     |
 | 988979  | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 1008134 | v1:4     | ethernet1 | 1.1.1.1 | 3          |         | 0     |
 |_________|__________|___________|_________|____________|_________|_______|
r2#
r2#

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r3#
r3#
r3#show mpls forw
r3#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 174577 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 255011 | v1:4     | ethernet2 | 1.1.3.4 | 3          |         | 0     |
 | 481546 | v1:6     | ethernet2 | 1236::4 | 3          |         | 0     |
 | 486092 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 588640 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 763732 | v1:4     | ethernet1 | 1.1.2.2 | 3          |         | 0     |
 | 766237 | v1:6     | ethernet1 | 1235::2 | 3          |         | 0     |
 | 876029 | null     | null      | null    | unlabelled |         | 0     |
 | 876030 | v1:4     | ethernet1 | 1.1.2.2 | 952391     |         | 640   |
 | 876031 | v1:4     | ethernet1 | 1.1.2.2 | 952392     |         | 640   |
 | 876032 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 876033 | v1:4     | ethernet2 | 1.1.3.4 | 451460     |         | 1280  |
 | 876034 | null     | null      | null    | unlabelled |         | 0     |
 | 876035 | null     | null      | null    | unlabelled |         | 0     |
 | 876036 | null     | null      | null    | unlabelled |         | 0     |
 | 876037 | null     | null      | null    | unlabelled |         | 0     |
 | 876038 | null     | null      | null    | unlabelled |         | 0     |
 | 918929 | null     | null      | null    | unlabelled |         | 0     |
 | 918930 | v1:6     | ethernet1 | 1235::2 | 168948     |         | 640   |
 | 918931 | v1:6     | ethernet1 | 1235::2 | 168949     |         | 640   |
 | 918932 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 918933 | v1:6     | ethernet2 | 1236::4 | 643118     |         | 1280  |
 | 918934 | null     | null      | null    | unlabelled |         | 0     |
 | 918935 | null     | null      | null    | unlabelled |         | 0     |
 | 918936 | null     | null      | null    | unlabelled |         | 0     |
 | 918937 | null     | null      | null    | unlabelled |         | 0     |
 | 918938 | null     | null      | null    | unlabelled |         | 0     |
 | 944181 | v1:4     | null      | null    | unlabelled | local   | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r3#
r3#

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r4#
r4#
r4#show mpls forw
r4#show mpls forw
 |~~~~~~~~|~~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~~|~~~~~~~~~|~~~~~~~|
 | label  | vrf      | iface     | hop     | label      | targets | bytes |
 |--------|----------|-----------|---------|------------|---------|-------|
 | 54004  | v1:4     | null      | null    | unlabelled | local   | 0     |
 | 304712 | v1:4     | ethernet1 | 1.1.3.3 | 3          |         | 0     |
 | 451456 | null     | null      | null    | unlabelled |         | 0     |
 | 451457 | v1:4     | ethernet1 | 1.1.3.3 | 876030     |         | 0     |
 | 451458 | v1:4     | ethernet1 | 1.1.3.3 | 876031     |         | 0     |
 | 451459 | v1:4     | ethernet1 | 1.1.3.3 | 876032     |         | 0     |
 | 451460 | v1:4     | null      | null    | unlabelled | local   | 1920  |
 | 451461 | null     | null      | null    | unlabelled |         | 0     |
 | 451462 | null     | null      | null    | unlabelled |         | 0     |
 | 451463 | null     | null      | null    | unlabelled |         | 0     |
 | 451464 | null     | null      | null    | unlabelled |         | 0     |
 | 451465 | null     | null      | null    | unlabelled |         | 0     |
 | 571085 | tester:6 | null      | null    | unlabelled | local   | 0     |
 | 573116 | v1:6     | null      | null    | unlabelled | local   | 0     |
 | 628205 | tester:4 | null      | null    | unlabelled | local   | 0     |
 | 643114 | null     | null      | null    | unlabelled |         | 0     |
 | 643115 | v1:6     | ethernet1 | 1236::3 | 918930     |         | 0     |
 | 643116 | v1:6     | ethernet1 | 1236::3 | 918931     |         | 0     |
 | 643117 | v1:6     | ethernet1 | 1236::3 | 918932     |         | 0     |
 | 643118 | v1:6     | null      | null    | unlabelled | local   | 1920  |
 | 643119 | null     | null      | null    | unlabelled |         | 0     |
 | 643120 | null     | null      | null    | unlabelled |         | 0     |
 | 643121 | null     | null      | null    | unlabelled |         | 0     |
 | 643122 | null     | null      | null    | unlabelled |         | 0     |
 | 643123 | null     | null      | null    | unlabelled |         | 0     |
 | 934855 | v1:6     | ethernet1 | 1236::3 | 3          |         | 0     |
 |________|__________|___________|_________|____________|_________|_______|
r4#
r4#