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OSPF (Open Shortest Path First) - (Interior gateway protocol, IGP). , , RIP .

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OSPF . , , , . , , . . OSPF, , (Area), , , .


: OSPF (Open Shortest Path First) 8

, , OSPF . , , :

  • Router ID: 32- , . , , . loopback .
  • -: , .
  • : -. .
  • LSA: Link State Advertisement .
  • Hello : LSA
  • Area (): , , LSA . LSA .
 OSPF

OSPF . , , OSPF :

  1. , , hello- DR (designated router, ). . , OSPF -, , .. . , DR .
  2. Priority ID , , DR- . , IP-. DR BDR (Backup DR), , , LSA . , -DR DR. . , , . , 35 , , 35 . (. , - DR) .
  3. , hello-. , .. LSA. , , (Area 0) , , Area 0. .

OSPF

OSPF:

  • ABR
  • Area Border Router ,

  • DR, BDR
  • Designated Router, Backup Designated Router , , . Multicast .

  • ASBR
  • Autonomous System Boundary Router .


  • OSPF
  • DR BDR, LSA
  • LSA . .

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