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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