Re: [nsp] OSPF NSSA question

From: Dmitri Kalintsev (dek@hades.uz)
Date: Tue Jul 25 2000 - 01:50:30 EDT


On Mon, Jul 24, 2000 at 02:07:03PM -0400, Chen Gang wrote:
>
> Hello,
>
> I have a OSPF network configured as backbone area 0 plus NSSA area 1.
> Actually, area 1 doesn't peer with other AS, it just redistributes some
> static routes into OSPF (in this situation, must we configured it as a
> NSSA?)

If you don't want your LSA type 3 to get into it - then yes. If you don't
care - then just configure it as a normal area. (That is only if EX routes
don't tax your routers too much because they are few)

> Can you tell me how to setup the ABR to permit the translation of type
> 7 LSA from NSSA into backbone area 0 as type 5 LSA? Or is it done by
> default?

You don't need to do anything - ABR will see that area is nssa and would
automatically convert type 7 into type 5 lsa's. (You can still filter and/or
aggregate some of the type 7 lsa's on your ABR before they get converted,
though).

SY,

--
   CDPlayer@irc            Senior network engineer at NetActive Internet
   dek @ hades.uz                phone: +27 (0)11 719-0333 fax: 444-8900
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