[c-nsp] OSPF(topology table vs routing table)

Sergey Velikanov [Intelsoft] sv at intelsoft.com
Tue Apr 18 21:53:42 EDT 2006


Code Monkey wrote:
> On 4/18/06, Sergey Velikanov [Intelsoft] <sv at intelsoft.com> wrote:
> 
>>I've got next topology ( number between A-C this is vlan number)
>>
>>A---------B
>>  \       /
>>  960   961
>>   \    /
>>     C
> 
> ...
> 
>>Why in topology database we see that routerC receive 172.15.178.129 & 172.15.178.128 from different routers, but in routing table next-hop for these IPs  the same (172.15.178.154 -
>>router A)
> 
> 
> Maybe (probably) because the costs of the links are not the same, and
> cost(CA)+cost(AB) < cost(CB) ?
> 

shame on me  :) you are absolutelly right

I forgot, that I've configure vlan961 with

interface Vlan961
  ip address x.x.178.137 255.255.255.248
  ip ospf cost 1000
end



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