Re: DR election

[Russ White <[e-mail]>]

As long as there is already a dr on the link, R4 would not take over as the
DR. Or it shouldn't. Think of it this way: The DR isn't elected first, the
BDR is. Then the routers attached to the link "discover" there is no DR,
and promote the BDR to DR, and elect a new BDR.

:-)

Russ

On Tue, 13 May 2003, Dror wrote:

> Hi,
>
> I have a question regarding a DR election algorithm.  If I have a netowrk
> with 3 routers R1,-R3, each having the same priority and with router IDs
> 0.0.0.1, 0.0.0.2, 0.0.0.3 respectively.
>
> After a DR election process is done, R3 will be DR, R2 will be BDR and R1
> will be DR-Other.  This is the result of the DR election process since R3
> has the largest router ID.
>
> If I add a new router R4 with router ID 0.0.0.4, do I expect R4 to become
> the DR, or does it just become another DR-other since there is already a DR
> in the network.
>
> Does the result depend on whether R4 is connected to the network when it is
> still in the WAIT state, or the result is the same nevertheless.
>
> Thanks
> Dror
>

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