In terms of the Type 7 LSA difference between a stub area and an nssa, it's
pretty much the same and yes you can use the nssa in place of the stub if you
really want to.
looking at the perspective of the lab exam, just make sure that you follow the
rules of the task. If the task is so generic and says , make Area xxx as a
stubby area, then yes.
Date: Thu, 13 Aug 2009 22:31:32 -0700
Subject: Re: [OSL | CCIE_RS] OSPF NSSA Area
From: [email protected]
To: [email protected]
CC: [email protected]
OK so why not just skip using stubs altogether and just use NSSA's all the time
in their place? Is there a drawback to that?
On Thu, Aug 13, 2009 at 10:17 PM, Antonio Dee <[email protected]> wrote:
Hi Taqdir,
What if your ASBR cannot access a normal area and has a link only to a stub
area? Then there is no way to get the Type 5 LSA into that stub area. In this
situation, you need to inject the Type 7 from the ASBR which is then converted
to Type 5 on the ABR connecting to your other OSPF areas in your AS. That is if
the P-bit is on then Type 5 conversion occurs.
[RIP Router] <----> [OSPF Stub Area] <---> [Normal Area]
Cheers!
Antonio
Date: Thu, 13 Aug 2009 21:36:24 -0700
From: [email protected]
To: [email protected]
Subject: [OSL | CCIE_RS] OSPF NSSA Area
Could any1 clear the concept of nssa ?
books say we need nssa , because stuby areas do not support type 5 LSA..so we
have special area called NSSA which generates type 7 LSA.. but why we need it
... same thing .. I can add my ASBR in normal area and do whatever I want to do
?
Taqdir Singh
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