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4.

, , , . .

IP . . .

. , . (interior gateway protocols (IGP)), (exterior gateway protocols (EGP)). IGP RIP, RIP v2, IGRP, EIGRP, OSPF IS-IS. EGP3 BGP4 EGP. : - .

. , , . , , .

RIP (). EIGRP , .

, . ,

R 192.168.14.0/24 [120/3] via 10.3.0.1 00:00:06 Serial0

R . R RIP, O OSPF .. [120/3] , 120 3. . 00:00:06 , . Serial0 , 192.168.14.0/24 10.3.0.1.

, .

-

-. . RIP IGRP .

, , . . . . (. .1).

.1. - .

 

- . , (shortest path first (SPF)). OSPF (Open Shortest Path First).

. , . SPF- , . .

. LSA (link-state advertisements).

- , .

LSA . , . , . , , .

, , - , .

- . - , : .

 

.

, . , . , . , . . .

, . , , . , , .

, . , . :

.

, .

.

.

.

 





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