[c-nsp] eigrp and ospf on same switch

Ben Steele ben at internode.com.au
Sun Mar 2 18:56:25 EST 2008


On 03/03/2008, at 2:24 AM, Dan Letkeman wrote:
>
> In what kind of scenario can redistributing both routing protocols
> cause a routing loop?

Lots, especially anything with redundancy built in, essentially you  
need 2-ways into the network, this is where the confusion will come in  
for the routers as it can create blackhole's for subnets doing mutual  
redistribution throughout the place, just have a google around for  
some more detailed explanations i'm sorry but I don't have time to go  
into huge detail right now and it would make more sense to you with  
some diagrams.

As someone else stated in your scenario mutual redistribution isn't  
going to hurt you as you have no alternate path and a very simple  
network, in your case summarized statics should've sufficed unless the  
addressing scheme was all over the place :)

Ben


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