{"id":274,"date":"2010-06-22T16:22:52","date_gmt":"2010-06-22T13:22:52","guid":{"rendered":"http:\/\/skeletor.org.ua\/?p=274"},"modified":"2011-03-03T14:42:01","modified_gmt":"2011-03-03T12:42:01","slug":"ospf-%d1%87%d1%82%d0%be-%d0%be%d0%bd%d0%be-%d1%82%d0%b0%d0%ba%d0%be%d0%b5","status":"publish","type":"post","link":"https:\/\/skeletor.org.ua\/?p=274","title":{"rendered":"OSPF: \u0447\u0442\u043e \u043e\u043d\u043e \u0442\u0430\u043a\u043e\u0435?"},"content":{"rendered":"

\u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0435\u0449\u0451 \u043e\u0434\u0438\u043d \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0446\u0438\u0438\u00a0OSPF<\/strong>. \u041e\u043d \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d \u0434\u043b\u044f \u043e\u0431\u043c\u0435\u043d\u0430 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0430\u043c\u0438 \u0432\u043d\u0443\u0442\u0440\u0438 \u043e\u0434\u043d\u043e\u0439\u00a0AS<\/strong>. \u042d\u0442\u043e\u0442 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u043c. \u041f\u043e\u0434\u0440\u043e\u0431\u043d\u0435\u0435 \u043e \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044f\u0445 \u043c\u043e\u0436\u043d\u043e \u043f\u0440\u043e\u0447\u0435\u0441\u0442\u044c \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\u0445\u00a0wiki<\/strong>.<\/p>\n

<\/p>\n

1) \u041f\u043e\u0434\u043d\u044f\u0442\u0438\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u043c\u0435\u0436\u0434\u0443 \u0440\u043e\u0443\u0442\u0435\u0440\u0430\u043c\u0438.<\/span><\/strong><\/p>\n

\u0412 \u044d\u0442\u043e\u043c \u043f\u0440\u0438\u043c\u0435\u0440\u0435 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043a\u0434\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0441\u0445\u0435\u043c\u0430 \u0438\u0437 2-\u0445 \u0440\u043e\u0443\u0442\u0435\u0440\u043e\u0432. \u0411\u0443\u0434\u0435\u0442 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u0430 \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u044f \u0434\u043b\u044f \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0433\u043e \u043e\u0431\u043c\u0435\u043d\u0430 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0430\u043c\u0438. \u0423 \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0438\u0437 \u0440\u043e\u0443\u0442\u0435\u0440\u043e\u0432 \u0435\u0441\u0442\u044c \u043f\u043e 2 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430, \u043f\u043e \u043e\u0434\u043d\u043e\u043c\u0443 \u0434\u043b\u044f \u0441\u0432\u044f\u0437\u0438 \u043c\u0435\u0436\u0434\u0443 \u0441\u043e\u0431\u043e\u0439, \u0434\u0440\u0443\u0433\u0438\u0435 – \u0441\u043c\u043e\u0442\u0440\u044f\u0442 \u0432 \u0441\u0435\u0442\u044c. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u043e\u0433\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u0441\u0435\u0442\u0435\u0432\u044b\u0435 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u044b \u0443 \u0432\u0430\u0441 \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043d\u044b \u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442. \u0418 \u0442\u0430\u043a, \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u044f \u0440\u043e\u0443\u0442\u0435\u0440\u0430\u00a0r1<\/strong>:<\/p>\n

Current configuration : 558 bytes
\n!
\nversion 12.2
\nno service timestamps log datetime msec
\nno service timestamps debug datetime msec
\nno service password-encryption
\n!
\nhostname r1
\n!
\n!
\ninterface FastEthernet0\/0
\nip address 10.0.0.1 255.255.255.0
\nduplex auto
\nspeed auto
\n!
\ninterface FastEthernet0\/1
\nip address 192.168.0.1 255.255.255.0
\nduplex auto
\nspeed auto
\n!
\nip classless
\n!<\/span><\/p><\/blockquote>\n

\u0438 \u0440\u043e\u0443\u0442\u0435\u0440\u0430\u00a0r2<\/strong>:<\/p>\n

Current configuration : 557 bytes
\n!
\nversion 12.2
\nno service timestamps log datetime msec
\nno service timestamps debug datetime msec
\nno service password-encryption
\n!
\nhostname r2
\n!
\n!
\ninterface FastEthernet0\/0
\nip address 10.0.0.2 255.255.255.0
\nduplex auto
\nspeed auto
\n!
\ninterface FastEthernet0\/1
\nip address 55.55.55.55 255.255.255.0
\nduplex auto
\nspeed auto
\n!
\nip classless
\n!<\/span><\/p><\/blockquote>\n

\u0414\u043b\u044f \u0441\u0432\u044f\u0437\u0438 \u043c\u0435\u0436\u0434\u0443 \u0441\u043e\u0431\u043e\u0439 \u0440\u043e\u0443\u0442\u0435\u0440\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0430\u0434\u0440\u0435\u0441\u0430 \u0438\u0437 \u0441\u0435\u0442\u0438\u00a010.0.0.0\/24<\/strong>. \u0418 \u0442\u0430\u043a, \u0434\u043b\u044f \u0442\u043e\u0433\u043e, \u0447\u0442\u043e \u0431\u044b \u043d\u0430\u0441\u0442\u0440\u043e\u0438\u0442\u044c\u00a0ospf<\/strong> \u0434\u0435\u043b\u0430\u0435\u043c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0435 (\u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u043d\u043d\u043e \u043d\u0430 \u0440\u043e\u0443\u0442\u0435\u0440\u0435\u00a0r1<\/strong> \u0438\u00a0r2<\/strong>):<\/p>\n

r1#conf t
\nr1(config)#router ospf 1
\nr1(config-router)#router-id 10.0.0.1
\nr1(config-router)#network 10.0.0.0 0.0.0.255 area 0
\nr1(config-router)#network 192.168.0.0 0.0.0.255 area 0<\/span><\/p>\n

r2#conf t
\nr2(config)#router ospf 2
\nr2(config-router)#router-id 10.0.0.2
\nr2(config-router)#network 10.0.0.0 0.0.0.255 area 0
\nr2(config-router)#network 55.55.55.0 0.0.0.255 area 0<\/span><\/p><\/blockquote>\n

\u0412 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435 \u043e\u0431\u043c\u0435\u043d\u0430, \u0435\u0441\u043b\u0438 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u043b\u043e\u0433\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435, \u0442\u043e \u0431\u0443\u0434\u0443\u0442 \u0432\u0430\u043b\u0438\u0442\u0441\u044f \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0442\u0430\u043a\u043e\u0433\u043e \u043f\u043b\u0430\u043d\u0430:<\/p>\n

00:00:45: %OSPF-5-ADJCHG: Process 2, Nbr 55.55.55.77 on FastEthernet0\/1 from LOADING to FULL, Loading Done
\n00:00:45: %OSPF-5-ADJCHG: Process 2, Nbr 10.0.0.1 on FastEthernet0\/0 from LOADING to FULL, Loading Done<\/span><\/p>\n

06:07:19: %OSPF-5-ADJCHG: Process 2, Nbr 55.55.55.77 on FastEthernet0\/1 from EXCHANGE to FULL, Exchange Done<\/span><\/p><\/blockquote>\n

\u0427\u0442\u043e \u0431\u044b \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c, \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u043b\u0438 \u0432\u043e\u043e\u0431\u0449\u0435 \u043e\u0431\u043c\u0435\u043d \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0430\u043c\u0438, \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u043c \u0442\u0430\u043a\u0438\u0435 \u043a\u043e\u043c\u0430\u043d\u0434\u044b:<\/p>\n

r1#sh ip route
\nCodes: C – connected, S – static, I – IGRP, R – RIP, M – mobile, B – BGP
\nD – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
\nN1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
\nE1 – OSPF external type 1, E2 – OSPF external type 2, E – EGP
\ni – IS-IS, L1 – IS-IS level-1, L2 – IS-IS level-2, ia – IS-IS inter area
\n* – candidate default, U – per-user static route, o – ODR
\nP – periodic downloaded static route<\/span><\/p>\n

Gateway of last resort is not set<\/span><\/p>\n

10.0.0.0\/24 is subnetted, 1 subnets
\nC\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10.0.0.0 is directly connected, FastEthernet0\/0
\n55.0.0.0\/24 is subnetted, 1 subnets
\nO\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 55.55.55.0 [110\/2] via 10.0.0.2, 05:59:34, FastEthernet0\/0
\nC\u00a0\u00a0\u00a0 192.168.0.0\/24 is directly connected, FastEthernet0\/1<\/span><\/p>\n

r1#sh ip ospf database
\nOSPF Router with ID (10.0.0.1) (Process ID 1)<\/span><\/p>\n

Router Link States (Area 0)<\/span><\/p>\n

Link ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum Link count
\n10.0.0.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10.0.0.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1792\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000000f 0x00f9ff 2
\n192.168.0.2\u00a0\u00a0\u00a0\u00a0 192.168.0.2\u00a0\u00a0\u00a0\u00a0 1791\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000000f 0x00f9ff 2
\n10.0.0.2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10.0.0.2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 56\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000010 0x00b560 1<\/span><\/p>\n

Net Link States (Area 0)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n10.0.0.2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10.0.0.2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1791\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000000c 0x001398
\n192.168.0.2\u00a0\u00a0\u00a0\u00a0 192.168.0.2\u00a0\u00a0\u00a0\u00a0 1791\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000017 0x005ebe<\/span><\/p><\/blockquote>\n

\u041f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0440\u043e\u0443\u0442\u0435\u0440\u043e\u0432 (\u044d\u0442\u043e\u0442 \u043f\u0440\u0438\u043c\u0435\u0440 \u0438\u0437 \u0434\u0440\u0443\u0433\u043e\u0439 \u0442\u043e\u043f\u043e\u043b\u043e\u0433\u0438\u0438, \u043d\u043e \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 \u043a\u0430\u043a\u0438\u0435 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0435 \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044f):<\/p>\n

r2>sh ip ospf neighbor<\/span><\/p>\n

Neighbor ID\u00a0\u00a0\u00a0\u00a0 Pri\u00a0\u00a0 State\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Dead Time\u00a0\u00a0 Address\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Interface
\n10.0.0.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0 FULL\/BDR\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:34\u00a0\u00a0\u00a0 10.0.0.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 FastEthernet0\/0
\n55.55.55.77\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0 FULL\/DR\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:31\u00a0\u00a0\u00a0 55.55.55.77\u00a0\u00a0\u00a0\u00a0 FastEthernet0\/1<\/span><\/p><\/blockquote>\n

Full<\/strong> – \u0412 \u044d\u0442\u043e\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438 \u0441\u043e\u0441\u0435\u0434\u0441\u043a\u0438\u0435 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u044b. \u0420\u043e\u0443\u0442\u0435\u0440\u044b \u043e\u0431\u043c\u0435\u043d\u044f\u043b\u0438\u0441\u044c\u00a0LSA<\/strong> \u0438 \u0431\u0430\u0437\u0430 \u0434\u0430\u043d\u043d\u044b\u0445, \u043d\u0430 \u0440\u043e\u0443\u0442\u0435\u0440\u0430\u0445, \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u0430. \u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 Full \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435\u043c \u0434\u043b\u044f\u00a0OSPF<\/strong> \u0440\u043e\u0443\u0442\u0435\u0440\u0430.<\/p>\n

\u0412\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440 (designated router, DR<\/strong>) \u2014 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u043c \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438\u00a0LSA<\/strong> \u0432 \u0441\u0435\u0442\u0438. \u041a\u0430\u0436\u0434\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440 \u0441\u0435\u0442\u0438 \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u0442 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f \u0441\u043e\u0441\u0435\u0434\u0441\u0442\u0432\u0430 \u0441\u00a0DR<\/strong>.<\/p>\n

\u0420\u0435\u0437\u0435\u0440\u0432\u043d\u044b\u0439 \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440 (backup designated router, BDR<\/strong>). \u041a\u0430\u0436\u0434\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440 \u0441\u0435\u0442\u0438 \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u0442 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f \u0441\u043e\u0441\u0435\u0434\u0441\u0442\u0432\u0430 \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0441\u00a0DR<\/strong>, \u043d\u043e \u0438\u00a0BDR<\/strong>.\u00a0DR<\/strong> \u0438\u00a0BDR<\/strong> \u0442\u0430\u043a\u0436\u0435 \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u044e\u0442 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f \u0441\u043e\u0441\u0435\u0434\u0441\u0442\u0432\u0430 \u0438 \u043c\u0435\u0436\u0434\u0443 \u0441\u043e\u0431\u043e\u0439. \u041f\u0440\u0438 \u0432\u044b\u0445\u043e\u0434\u0435 \u0438\u0437 \u0441\u0442\u0440\u043e\u044f\u00a0DR<\/strong>,\u00a0BDR<\/strong> \u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u0441\u044f\u00a0DR<\/strong> \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442 \u0432\u0441\u0435 \u0435\u0433\u043e \u0444\u0443\u043d\u043a\u0446\u0438\u0438. \u0422\u0430\u043a \u043a\u0430\u043a \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u044b \u0441\u0435\u0442\u0438 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u043b\u0438 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f \u0441\u043e\u0441\u0435\u0434\u0441\u0442\u0432\u0430 \u0441\u00a0BDR<\/strong>, \u0442\u043e \u0432\u0440\u0435\u043c\u044f \u043d\u0435\u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u0438 \u0441\u0435\u0442\u0438 \u043c\u0438\u043d\u0438\u043c\u0438\u0437\u0438\u0440\u0443\u0435\u0442\u0441\u044f.<\/p>\n

2) \u0417\u043e\u043d\u044b.<\/span><\/strong><\/p>\n

\u0417\u043e\u043d\u044b \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u0441\u043e\u0431\u043e\u0439 \u043d\u0435\u043a\u0438\u0435 \u0440\u0430\u0437\u0431\u0438\u0435\u043d\u0438\u044f \u0432\u043d\u0443\u0442\u0440\u0438\u00a0AS<\/strong>. \u041c\u0430\u0440\u0448\u0440\u0443\u0442\u044b \u0438\u0437 \u043e\u0434\u043d\u043e\u0439 \u0437\u043e\u043d\u044b, \u043d\u0435 \u0432\u0438\u0434\u043d\u044b \u0432 \u0434\u0440\u0443\u0433\u043e\u0439. \u0427\u0435\u043c-\u0442\u043e \u043a\u043e\u0441\u0432\u0435\u043d\u043d\u043e \u043d\u0430\u043f\u043e\u043c\u0438\u043d\u0430\u0435\u0442\u00a0vlan’\u044b<\/strong> \u043d\u0430 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u0430\u0445. \u0427\u0442\u043e \u0431\u044b \u043f\u043e\u043d\u044f\u0442\u044c, \u0447\u0442\u043e \u043e\u043d\u043e \u0442\u0430\u043a\u043e\u0435, \u0438 \u043a\u0430\u043a \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442, \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0441\u0445\u0435\u043c\u0443 \u0438\u0437 3-\u043e\u0445 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432 (\u0441\u043e\u0435\u0434\u0435\u043d\u0435\u043d\u044b \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e, ), \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u044c\u043d\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0435 2-\u0445 \u0437\u043e\u043d.<\/p>\n

\u0418 \u0442\u0430\u043a. \u041d\u0438\u0436\u0435 \u043f\u0440\u0438\u0432\u0435\u0434\u0443 \u043a\u043e\u043d\u0444\u0438\u0433\u0438 3-\u043e\u0445 \u0440\u043e\u0443\u0442\u0435\u0440\u043e\u0432, \u0438 \u043f\u043e\u0442\u043e\u043c \u043f\u043e\u043a\u0430\u0436\u0443 \u043c\u0430\u0448\u0440\u0443\u0442\u044b \u0443 \u043d\u0438\u0445:<\/p>\n

hostname r3
\n!
\ninterface FastEthernet0\/0
\nip address 192.168.0.2 255.255.255.0
\nduplex auto
\nspeed auto
\n!
\ninterface FastEthernet0\/1
\nip address 22.22.22.22 255.255.0.0
\nduplex auto
\nspeed auto
\n!
\nrouter ospf 3
\nrouter-id 192.168.0.2
\nlog-adjacency-changes
\nnetwork 192.168.0.0 0.0.0.255 area 0
\nnetwork 22.22.0.0 0.0.255.255 area 0
\n!
\nip classless
\n!<\/span><\/p>\n

hostname r4
\n!
\ninterface FastEthernet0\/0
\nip address 22.22.33.33 255.255.0.0
\nduplex auto
\nspeed auto
\n!
\ninterface FastEthernet0\/1
\nip address 101.1.1.1 255.255.255.0
\nduplex auto
\nspeed auto
\n!
\nrouter ospf 4
\nlog-adjacency-changes
\nnetwork 22.22.33.0 0.0.0.255 area 0
\nnetwork 101.1.1.0 0.0.0.255 area 101
\n!
\nip classless
\n!<\/span><\/p>\n

hostname r6
\n!
\ninterface FastEthernet0\/0
\nip address 101.1.1.77 255.255.255.0
\nduplex auto
\nspeed auto
\n!
\ninterface FastEthernet0\/1
\nip address 67.67.67.67 255.255.255.0
\nduplex auto
\nspeed auto
\n!
\nrouter ospf 5
\nrouter-id 101.1.1.77
\nlog-adjacency-changes
\nnetwork 101.1.1.0 0.0.0.255 area 101
\n!
\nip classless
\n!<\/span><\/p><\/blockquote>\n

\u0410 \u0442\u0435\u043f\u0435\u0440\u044c \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043d\u0430 \u0442\u0430\u0431\u043b\u0438\u0446\u0443 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0446\u0438\u0438:<\/p>\n

r3#sh ip ospf database
\nOSPF Router with ID (192.168.0.2) (Process ID 3)<\/span><\/p>\n

Router Link States (Area 0)<\/span><\/p>\n

Link ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum Link count
\n192.168.0.2\u00a0\u00a0\u00a0\u00a0 192.168.0.2\u00a0\u00a0\u00a0\u00a0 211\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000012 0x00d705 2
\n101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 214\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000011 0x005261 1<\/span><\/p>\n

Net Link States (Area 0)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n192.168.0.2\u00a0\u00a0\u00a0\u00a0 192.168.0.2\u00a0\u00a0\u00a0\u00a0 211\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000001d 0x00e5f2
\n22.22.22.22\u00a0\u00a0\u00a0\u00a0 192.168.0.2\u00a0\u00a0\u00a0\u00a0 211\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000001e 0x001dfb<\/span><\/p>\n

Summary Net Link States (Area 0)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n101.1.1.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 209\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000000f 0x009beb<\/span><\/p>\n

r4#sh ip ospf database
\nOSPF Router with ID (101.1.1.1) (Process ID 4)<\/span><\/p>\n

Router Link States (Area 0)<\/span><\/p>\n

Link ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum Link count
\n101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 302\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000011 0x005261 1
\n192.168.0.2\u00a0\u00a0\u00a0\u00a0 192.168.0.2\u00a0\u00a0\u00a0\u00a0 300\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000012 0x00d705 2<\/span><\/p>\n

Net Link States (Area 0)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n192.168.0.2\u00a0\u00a0\u00a0\u00a0 192.168.0.2\u00a0\u00a0\u00a0\u00a0 300\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000001d 0x00e5f2
\n22.22.22.22\u00a0\u00a0\u00a0\u00a0 192.168.0.2\u00a0\u00a0\u00a0\u00a0 300\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000001e 0x001dfb<\/span><\/p>\n

Summary Net Link States (Area 0)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n101.1.1.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 297\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000000f 0x009beb<\/span><\/p>\n

Router Link States (Area 101)<\/span><\/p>\n

Link ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum Link count
\n101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 302\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000010 0x004915 1
\n101.1.1.77\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.77\u00a0\u00a0\u00a0\u00a0\u00a0 303\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000010 0x00adcc 1<\/span><\/p>\n

Net Link States (Area 101)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n101.1.1.77\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.77\u00a0\u00a0\u00a0\u00a0\u00a0 303\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000000f 0x003cbb<\/span><\/p>\n

Summary Net Link States (Area 101)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n22.22.0.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 297\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000003a 0x008924
\n192.168.0.0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 292\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000003b 0x000866<\/span><\/p>\n

r6#sh ip ospf database
\nOSPF Router with ID (101.1.1.77) (Process ID 5)<\/span><\/p>\n

Router Link States (Area 101)<\/span><\/p>\n

Link ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum Link count
\n101.1.1.77\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.77\u00a0\u00a0\u00a0\u00a0\u00a0 493\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000010 0x00adcc 1
\n101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 493\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x80000010 0x004915 1<\/span><\/p>\n

Net Link States (Area 101)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n101.1.1.77\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.77\u00a0\u00a0\u00a0\u00a0\u00a0 493\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000000f 0x003cbb<\/span><\/p>\n

Summary Net Link States (Area 101)
\nLink ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ADV Router\u00a0\u00a0\u00a0\u00a0\u00a0 Age\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Seq#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum
\n22.22.0.0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 488\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000003a 0x008924
\n192.168.0.0\u00a0\u00a0\u00a0\u00a0 101.1.1.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 483\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0x8000003b 0x000866<\/span><\/p><\/blockquote>\n

\u0412\u0438\u0434\u0438\u043c, \u0447\u0442\u043e \u0437\u043e\u043d\u0430\u00a0area 101<\/strong> \u0432\u0438\u0434\u043d\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u043d\u0430 \u0440\u043e\u0443\u0442\u0435\u0440\u0430\u0445\u00a0r4<\/strong>,\u00a0r6<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0435\u0449\u0451 \u043e\u0434\u0438\u043d \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0446\u0438\u0438\u00a0OSPF. \u041e\u043d \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d \u0434\u043b\u044f \u043e\u0431\u043c\u0435\u043d\u0430 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0430\u043c\u0438 \u0432\u043d\u0443\u0442\u0440\u0438 \u043e\u0434\u043d\u043e\u0439\u00a0AS. \u042d\u0442\u043e\u0442 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u043c. \u041f\u043e\u0434\u0440\u043e\u0431\u043d\u0435\u0435 \u043e \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044f\u0445 \u043c\u043e\u0436\u043d\u043e \u043f\u0440\u043e\u0447\u0435\u0441\u0442\u044c \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\u0445\u00a0wiki.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-274","post","type-post","status-publish","format-standard","hentry","category-cisco"],"_links":{"self":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/274","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=274"}],"version-history":[{"count":4,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/274\/revisions"}],"predecessor-version":[{"id":876,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/274\/revisions\/876"}],"wp:attachment":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}