Set priority of the existing DR to 0. That'll force an election. You
may need to manipulate the priorities of teh other routers to ensure the
router of your choice becomes the DR.
HTH,
Charles
-----Original Message-----
From: [EMAIL PROTECTED] ("Tim McCabe") [mailto:[EMAIL PROTECTED]]
Posted At: Monday, June 19, 2000 9:12 PM
Posted To: cisco
Conversation: OSPF !!!
Subject: Re: OSPF !!!
Is there a way to force an election? I have the priorities set correctly
as
viewed in sho ip ospf nieghbor, however, the highest priority router is
not
the DR.
""Cthulu, CCIE Candidate"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Elias,
>
> I am going to display my awesome lack of OSPF knowledge in public, so
> bear with me:)
>
> The ip ospf cost and ip ospf priority are interface specific
commands:
> unless something drastic has happened at Cisco, you can not enter them
> under the ospf process configuration mode as implied here.
>
> Priority only affects DR elections: it has no impact on route
> selection.
>
> Cost is a trickier one, but generally speaking, it does affect route
> selection. If you have two routes to the same destination, you can
set
> the cost of one higher than the other, and the lower cost one will be
> preferred (assuming it is up and operational, of course).
>
> OSPF calculates the cost of each interface using the formula of
> interface bandwidth/100Mbps; the resulting number is the cost of the
> interface by default.
>
>
> You could also indirectly set the interface cost by setting the
> bandwidth of the interface higher or lower using the the bandwdith
> command: OSPF will then calculate based on that.
>
> I am not going to get into load balancing between interfaces to the
same
> destination because, frankly, it's beyond the scope of my brain. I
hope
> the previous info helps even a little bit.
>
> Flames to: [EMAIL PROTECTED]
>
> Charles
>
>
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Posted At: Wednesday, June 14, 2000 5:59 PM
> Posted To: cisco
> Conversation: OSPF !!!
> Subject: OSPF !!!
>
>
> Hello everyone!
>
> I have a bit of confusion with how to route selection occurs in OSPF
by
> icluding the following commands Please shade some light on this
>
> Ok here comes
>
> does cost and priority affects route selection ??
>
> 1. router ospf 3
> network 158.13.0.0 0.0.255.255 area 0
> default-information originate
> default-metric 1
> distance 85
> ip ospf cost 10
> ip ospf priority 4
>
>
> 2 router ospf 3
> network 158.13.0.0 0.0.255.255 area 0
> default-information originate
> default-metric 1
> distance 85
> ip ospf cost 20
> ip ospf priority 5
>
> Thanks,
> Elias
>
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