DR and BDR election process

Question:

I'm having 4 WS-C3750X-24T-S ethernet switches. Sw1, Sw2, Sw3 and Sw4. Sw1 is the DR, Sw2 is the BDR and Sw3 and Sw4 are configured for DR  Other. Sw3 sends message to Sw1 which is the DR that it is going down. Unfortunately when Sw1 also goes down when it receives message from Sw3. So will Sw2 which is the BDR come to know that sw3 is down. Please reply.

Answer:

There are probably things in your post that I am not understanding fully. But it seems to be a fairly simple question. Routers in OSPF continue to send hello messages to indicate that they are still active members of the network. If sw3 goes down and stops sending hello packets then sw2 will detect that sw3 is down.

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