DR / BDR(Backup Designated Router) Overview DR / BDR(Backup Designated Router) Overview DROTHER 라우터 - DR와 BDR로 선출되지 않은 라우터 DROTHER 라우터들의 연결 상태는 Two-way Broadcast 단위로 DR, BDR, DROTHER이 구분됨 DR은 한 번 결정되면 변경되지 않음 BDR은 변경될 수 있음 DR / BDR 선출 이유 DR/BDR이 없는 Broadcast는 모든 라우터 간에 OSPF Packet을 송수신하여 대역폭 및 리소스 낭비가 발생함 DR/BDR을 선출하여 DR과 다른 장비 간에만 OSPF Packet을 송수신하여 대역폭 및 리소스 낭비의를 해결함 DR/BDR 선출 전 OSPF Packet 송수신 DR/BDR 선출 후 OSPF Packet 송수신 DR과 BDR 선출 순서 (Cisco 및 Nokia 기준) 1. OSPF Priority가 가장 높은 라우터가 DR로...
![[OSPF] OSPF DR/BDR](https://mblogthumb-phinf.pstatic.net/MjAyMjA4MjdfNzkg/MDAxNjYxNTY0Mjk0MDM2.b_H4S0WVhuDPZ0hQmXW4UBQiNd1H8hzZzYyl-kKhdJEg.-5ckFvrUww1n6S3FwqEOmch0VkbqrndhSuCRK443wYQg.PNG.choiyoonjun111/image.png?type=w2)
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BackupDesignatedRouter
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OSPFDR
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OSPFBDR
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OSPFAdvertisementIP
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OSPF
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OpenShortestPathFirst
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DR선출이유
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DR선출순서
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DR동작과정
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DR광고동작과정
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DRAdvertisement동작과정
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DR
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DesignatedRouter
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BDR
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OSPFIP
원문 링크 : [OSPF] OSPF DR/BDR
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