cust-A-1與cust-B-1的lo0地址要互通

root@PE> show configuration | display set

set version 14.1R4.8

set system host-name PE

set system root-authentication encrypted-password "$1$65QU7nZx$/CELLqn/JjiG1yYaOD/c3/"

set system syslog user * any emergency

set system syslog file messages any notice

set system syslog file messages authorization info

set system syslog file interactive-commands interactive-commands any

set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.2/30

set interfaces ge-0/0/1 unit 0 family inet address 192.168.2.2/30

set interfaces lo0 unit 0 family inet address 10.0.255.3/32

set routing-options router-id 10.0.255.3

set routing-options autonomous-system 65003

set policy-options policy-statement import-from-cust-A term 1 from community cust-A

set policy-options policy-statement import-from-cust-A term 1 then accept

set policy-options policy-statement import-from-cust-B term 1 from community cust-B

set policy-options policy-statement import-from-cust-B term 1 then accept

set policy-options community cust-A members target:65003:1

set policy-options community cust-B members target:65003:2

set routing-instances cust-A instance-type vrf

set routing-instances cust-A interface ge-0/0/0.0

set routing-instances cust-A route-distinguisher 65003:1

set routing-instances cust-A vrf-import import-from-cust-B

set routing-instances cust-A vrf-target target:65003:1

set routing-instances cust-A routing-options auto-export

set routing-instances cust-A protocols bgp group PE-CE type external

set routing-instances cust-A protocols bgp group PE-CE neighbor 192.168.1.1 peer-as 65001

set routing-instances cust-B instance-type vrf

set routing-instances cust-B interface ge-0/0/1.0

set routing-instances cust-B route-distinguisher 65003:2

set routing-instances cust-B vrf-import import-from-cust-A

set routing-instances cust-B vrf-target target:65003:2

set routing-instances cust-B routing-options auto-export

set routing-instances cust-B protocols bgp group PE-CE type external

set routing-instances cust-B protocols bgp group PE-CE neighbor 192.168.2.1 peer-as 65002

root@cust-A# run show configuration | display set

set version 14.1R4.8

set system host-name cust-A

set system root-authentication encrypted-password "$1$EQZTCpt8$v6k.Awtmq53g76ezR1VKd."

set system syslog user * any emergency

set system syslog file messages any notice

set system syslog file messages authorization info

set system syslog file interactive-commands interactive-commands any

set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.1/30

set interfaces lo0 unit 0 family inet address 10.0.255.1/32

set routing-options router-id 10.0.255.1

set routing-options autonomous-system 65001

set protocols bgp group EBGP type external

set protocols bgp group EBGP export export-lo0

set protocols bgp group EBGP neighbor 192.168.1.2 peer-as 65003

set policy-options policy-statement export-lo0 term 1 from interface lo0.0

set policy-options policy-statement export-lo0 term 1 then accept

root@cust-B# run show configuration | display set

set version 14.1R4.8

set system root-authentication encrypted-password "$1$r/RbmCuW$eWwmuUqbY6CE5OcvADzap0"

set system syslog user * any emergency

set system syslog file messages any notice

set system syslog file messages authorization info

set system syslog file interactive-commands interactive-commands any

set interfaces ge-0/0/1 unit 0 family inet address 192.168.2.1/30

set interfaces lo0 unit 0 family inet address 10.0.255.2/32

set routing-options router-id 10.0.255.2

set routing-options autonomous-system 65002

set protocols bgp group EBGP type external

set protocols bgp group EBGP export export-lo0

set protocols bgp group EBGP neighbor 192.168.2.2 peer-as 65003

set policy-options policy-statement export-lo0 term 1 from interface lo0.0

set policy-options policy-statement export-lo0 term 1 then accept

驗證：

root@cust-A> show route

inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)

+ = Active Route, - = Last Active, * = Both

10.0.255.1/32? ? ? *[Direct/0] 00:27:35

? ? ? ? ? ? ? ? ? ? > via lo0.0

10.0.255.2/32? ? ? *[BGP/170] 00:05:25, localpref 100

? ? ? ? ? ? ? ? ? ? ? AS path: 65003 65002 I, validation-state: unverified

? ? ? ? ? ? ? ? ? ? > to 192.168.1.2 via ge-0/0/0.0

192.168.1.0/30? ? *[Direct/0] 00:27:35

? ? ? ? ? ? ? ? ? ? > via ge-0/0/0.0

192.168.1.1/32? ? *[Local/0] 00:27:35

? ? ? ? ? ? ? ? ? ? ? Local via ge-0/0/0.0

root@cust-B> show route

inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)

+ = Active Route, - = Last Active, * = Both

10.0.255.1/32? ? ? *[BGP/170] 00:09:49, localpref 100

? ? ? ? ? ? ? ? ? ? ? AS path: 65003 65001 I, validation-state: unverified

? ? ? ? ? ? ? ? ? ? > to 192.168.2.2 via ge-0/0/1.0

10.0.255.2/32? ? ? *[Direct/0] 00:27:34

? ? ? ? ? ? ? ? ? ? > via lo0.0

192.168.2.0/30? ? *[Direct/0] 00:27:34

? ? ? ? ? ? ? ? ? ? > via ge-0/0/1.0

192.168.2.1/32? ? *[Local/0] 00:27:34

? ? ? ? ? ? ? ? ? ? ? Local via ge-0/0/1.0

root@cust-B> ping source 10.0.255.2 10.0.255.1 rapid count 6

PING 10.0.255.1 (10.0.255.1): 56 data bytes

!!!!!!

--- 10.0.255.1 ping statistics ---

6 packets transmitted, 6 packets received, 0% packet loss

round-trip min/avg/max/stddev = 3.340/4.229/6.315/1.034 ms