Thats a very simplified way of looking at it. The DR is in its position due
either to election or priorty. Now, elections and priority can be
influenced by several things such as a router outage(where in the BDR, after
waiting the alotted amount of time for the timer to run out between LSAs,
promotes itself to the position of DR and allows for a new BDR to be
'elected), or manual maniplation of the priority of the router. Anyways,
the DR does not 'flood' the network with updates(you may be confused with
the way in which link state protocols propagate their status' via 'hello'
packets and the way in which IPX SAPs a network...just a thought ;-). The
DR will only send out an update if their has been a change in the topology
of the network(router outage, link down etc.), or in the of a dispute of
current information in routing tables. Hope that clarifies things a little,
mine too is a very simplistic view of the way Designated and Backup
Designated Routers operate within OSPF architectures.
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Ariel Banzon
> Sent: Tuesday, September 26, 2000 4:56 PM
> To: [EMAIL PROTECTED]
> Subject: Re: DR/BDR in OSPF
>
>
> Guess who?
>
> I understand that the DR sends the link state update to all adjacent OSPF
> routers. Essentially flooding the network.
>
> The router that detected the change to the link state directly
> sends the LSU
> to the DR and BDR.
>
> my tiny brain ....not working
>
> Anyone differ, please feel free. Just helping out...hopefully.
>
>
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