[c-nsp] problem with OSPF

Wayne Lee linkconnect at googlemail.com
Mon May 11 07:54:45 EDT 2009


On Mon, May 11, 2009 at 12:36 PM, Charlie Allom <charlie at playlouder.com> wrote:
> On Mon, May 11, 2009 at 12:22:50PM +0100, Wayne Lee wrote:
>> Hello List.
>>
>> I'm using a 7201 as a LNS (pppoa), whenever a connection drops or a
>> new one comes online all ospf routes have their lifetime reset to 0.
>>
>> cisco-7201>show ip route ospf
>>
>> O E2 192.168.0.1/32
>
> If you summarised your route that the IP pool comes from, perhaps OSPF
> wouldn't need to rebuild it's SPF tree.
>
>
> # ip route 192.168.1.0 255.255.255.248 Null0 200
>
> # router ospf 1
> #  network 192.168.1.0 255.255.255.248
> # exit
>

We have 2 /19's for ADSL usage spread over 4 LNS's, the 7201 is the
only one which has this problem.
The 7201 is also running BGP so the routes are already summarised.


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