[alcatel-nsp] alcatel ospf inter-area filtering

dodik n. mry628 at gmail.com
Wed Apr 24 04:41:32 EDT 2013

example of inter area filtering, taken from google result :


from backbone area, we can select which prefix will advertised to
other (non backbone) area, and vice versa.

the "external-db-overflow" term you mentioned, i think it talks about
external LSA.


On Wed, Apr 24, 2013 at 12:01 PM, KURNIAWAN, ANDY (ANDY)
<andy.kurniawan at alcatel-lucent.com> wrote:
> Hi,
> I'm not sure with your queries about "ospf inter-area filtering" for, but in my perseption you are need to filter the LSA to prevent the external route exhausting the CPU/memory resources.
> So I guess you can use " external-db-overflow ". please find page 342 to detail description on attached doc.
> Please correct me if I am wrong.
> Thanks//Andy
> -----Original Message-----
> From: alcatel-nsp [mailto:alcatel-nsp-bounces at puck.nether.net] On Behalf Of dodik n.
> Sent: 24 April 2013 11:01
> To: alcatel-nsp at puck.nether.net
> Subject: [alcatel-nsp] alcatel ospf inter-area filtering
> Hi all,
> i want to apply some ospf inter-area filtering in SR and ESS routers, but have no luck.
> how to apply ospf inter-area filtering ?
> in google with "ospf inter area" keyword, i got only other vendor implementation.
> The same result can be achieved with configuring the area to nssa or stub, but it will make downtime and must done in all router at the same time.
> Thanks.
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