为什么r1无法和r6建立邻居？

zxh994731785

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lab# run show isis adjacency logical-system r6                                      

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lab# show |display set
set version 14.1R1.10
set system root-authentication encrypted-password "$1$QWpPdIIr$gIrE7JoMjaADNEljqaG7A0"
set system login user lab uid 2002
set system login user lab class super-user
set system login user lab authentication encrypted-password "$1$mA9kvMqo$lEF.gLBrnelqTo.n.cOcs0"
set system services ssh
set logical-systems r1 interfaces ge-0/0/3 unit 10 vlan-id 10
set logical-systems r1 interfaces ge-0/0/3 unit 10 family inet address 192.168.12.1/24
set logical-systems r1 interfaces ge-0/0/3 unit 10 family iso
set logical-systems r1 interfaces ge-0/0/3 unit 50 vlan-id 50
set logical-systems r1 interfaces ge-0/0/3 unit 50 family inet address 192.168.16.1/24
set logical-systems r1 interfaces ge-0/0/3 unit 50 family iso
set logical-systems r1 interfaces lo0 unit 1 family inet address 1.1.1.1/32
set logical-systems r1 interfaces lo0 unit 1 family iso address 49.0001.0001.0001.0001.00
set logical-systems r1 protocols isis interface ge-0/0/3.10 level 2 disable
set logical-systems r1 protocols isis interface ge-0/0/3.50 level 1 disable
set logical-systems r1 protocols isis interface lo0.1 passive
set logical-systems r2 interfaces ge-0/0/3 unit 20 vlan-id 20
set logical-systems r2 interfaces ge-0/0/3 unit 20 family inet address 192.168.23.2/24
set logical-systems r2 interfaces ge-0/0/3 unit 20 family iso
set logical-systems r2 interfaces ge-0/0/4 unit 10 vlan-id 10
set logical-systems r2 interfaces ge-0/0/4 unit 10 family inet address 192.168.12.2/24
set logical-systems r2 interfaces ge-0/0/4 unit 10 family iso
set logical-systems r2 interfaces lo0 unit 2 family inet address 2.2.2.2/32
set logical-systems r2 interfaces lo0 unit 2 family iso address 49.0001.0002.0002.0002.00
set logical-systems r2 protocols isis interface ge-0/0/3.20 level 2 disable
set logical-systems r2 protocols isis interface ge-0/0/4.10 level 2 disable
set logical-systems r2 protocols isis interface lo0.2 passive
set logical-systems r3 interfaces ge-0/0/3 unit 30 vlan-id 30
set logical-systems r3 interfaces ge-0/0/3 unit 30 family inet address 192.168.34.3/24
set logical-systems r3 interfaces ge-0/0/3 unit 30 family iso
set logical-systems r3 interfaces ge-0/0/4 unit 20 vlan-id 20
set logical-systems r3 interfaces ge-0/0/4 unit 20 family inet address 192.168.23.3/24
set logical-systems r3 interfaces ge-0/0/4 unit 20 family iso
set logical-systems r3 interfaces lo0 unit 3 family inet address 3.3.3.3/32
set logical-systems r3 interfaces lo0 unit 3 family iso address 49.0001.0003.0003.0003.00
set logical-systems r3 protocols isis level 2 authentication-key "$9$CpuIp1hN-wJGiYg5Q3nCAM8L"
set logical-systems r3 protocols isis level 2 authentication-type md5
set logical-systems r3 protocols isis interface ge-0/0/3.30 level 1 disable
set logical-systems r3 protocols isis interface ge-0/0/4.20 level 2 disable
set logical-systems r3 protocols isis interface lo0.3 passive
set logical-systems r4 interfaces ge-0/0/3 unit 40 vlan-id 40
set logical-systems r4 interfaces ge-0/0/3 unit 40 family inet address 192.168.45.4/24
set logical-systems r4 interfaces ge-0/0/3 unit 40 family iso
set logical-systems r4 interfaces ge-0/0/4 unit 30 vlan-id 30
set logical-systems r4 interfaces ge-0/0/4 unit 30 family inet address 192.168.34.4/24
set logical-systems r4 interfaces ge-0/0/4 unit 30 family iso
set logical-systems r4 interfaces lo0 unit 4 family inet address 4.4.4.4/32
set logical-systems r4 interfaces lo0 unit 4 family iso address 49.0002.0001.0001.0001.00
set logical-systems r4 protocols isis level 2 authentication-key "$9$IA9hlMg4ZqmTUj9Au0IRdbw"
set logical-systems r4 protocols isis level 2 authentication-type md5
set logical-systems r4 protocols isis interface ge-0/0/3.40 level 2 disable
set logical-systems r4 protocols isis interface ge-0/0/4.30 level 1 disable
set logical-systems r4 protocols isis interface lo0.4 passive
set logical-systems r5 interfaces ge-0/0/4 unit 40 vlan-id 40
set logical-systems r5 interfaces ge-0/0/4 unit 40 family inet address 192.168.45.5/24
set logical-systems r5 interfaces ge-0/0/4 unit 40 family iso
set logical-systems r5 interfaces lo0 unit 5 family inet address 5.5.5.5/32
set logical-systems r5 interfaces lo0 unit 5 family iso address 49.0002.0002.0002.0002.00
set logical-systems r5 protocols isis interface ge-0/0/4.40 level 2 disable
set logical-systems r5 protocols isis interface lo0.5 passive
set logical-systems r6 interfaces ge-0/0/4 unit 50 vlan-id 50
set logical-systems r6 interfaces ge-0/0/4 unit 50 family inet address 192.168.16.6/24
set logical-systems r6 interfaces ge-0/0/4 unit 50 family iso
set logical-systems r6 interfaces lo0 unit 6 family inet address 6.6.6.6/32
set logical-systems r6 interfaces lo0 unit 6 family iso address 49.0003.0001.0001.0001.00
set logical-systems r6 protocols isis interface ge-0/0/4.50 level 1 disable
set logical-systems r6 protocols isis interface lo0.6 passive
set interfaces ge-0/0/2 unit 0 description manage-port
set interfaces ge-0/0/2 unit 0 family inet address 192.168.150.2/24
set interfaces ge-0/0/3 vlan-tagging
set interfaces ge-0/0/4 vlan-tagging
                                       
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lab#