[c-nsp] OSPF router gets separated from a broadcast domain

Gabor Ivanszky ivanszky at niif.hu
Wed Feb 6 02:59:53 EST 2008


Peter Rathlev wrote:
> Would it maybe be possible to use three different subnets in the same
> broadcast domain, one for A-C, one for B-C and one for C-B, or does the
> OSPF multicast ruin this? I know this doesn't scale very well -- for N+1
> routers you'd need N*(N-1)/2 connections. :-|
>
>   
In my experience OSPF adjacencies can not be built with secondary 
addresses :(
It is possilbe to use subinterfaces with different vlans, but then it is 
not the same broadcast domain.


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