From: Niche (jackyliu419@gmail.com)
Date: Fri Sep 30 2005 - 10:39:44 GMT-3
Hi,
Sorry, then that would be my mistake =)
Since I had came across a simulation lab that request no E2 LSA appear in
the routing table so N2 was the only choice for me at that moment. I always
consider N2 LSA is kinda a special LSA to accommodate stub with redistribute
another routing protocol situation.
Anyway, my mistake, thanks alot =)
Cheers~
Jacky
On 9/30/05, Scott Morris <swm@emanon.com> wrote:
>
> Why would Type 7's not be considered external?
>
> Per RFC 1587:
>
> "Type-7 LSAs provide for carrying external route information within an
> NSSA. Type-7 AS External LSAs have virtually the same syntax as the
> Type-5 AS External LSAs with the obvious exception of the link-state
> type (see section 3.2 for more details). "
>
> Sounds like an external LSA to me.
>
> Scott
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Niche
> Sent: Friday, September 30, 2005 9:00 AM
> To: mani poopal
> Cc: Scott Morris; micsoniu@telus.net; ccielab@groupstudy.com
> Subject: Re: OSPF STUB or NSSA ???
>
> Hi,
>
> I thought L7 LSA is not being considered as external LSA? L7 LSA is N2 and
> External is E2 (without reset with metric-type).
>
> But surely, I will go for proctor to clarify what is the question request
> for in order to ensure that I get the points.
>
> Cheers~
> Jacky
>
> On 9/30/05, mani poopal <mani_ccie@yahoo.com> wrote:
> >
> > Hi Narcis,
> >
> > May be wording might say inter-area, intra-area and external. If
> > interarea means type 5 LSA, external means type 7 LSA.
> > PS:Be care full when the router is directley connted to another
> > routing protocol, in that case even if you put area xxx nssa, you will
> > not see type5 LSA BUT will see type 7 LSA. The solution is
> > no-redistribution keywork with area xxx nssa statement. My 2 cents.
> >
> >
> > Mani
> >
> > --- Scott Morris <swm@emanon.com> wrote:
> >
> > > Well... You have multiple options for this... But I'd say it would
> > > depend on the rest of your layout!
> > >
> > > You can figure things like this out from reading the entire exam and
> > > looking closely at the diagram(s) while you do it! Both stub and
> > > nssa will filter out Type 5 LSAs (external routes). However, NSSA
> > > allows type 7 (also external). Sooooo... Your diagram, or any
> > > further requirements about "redistribute eigrp into area X" will
> > > really answer that question for you.
> > >
> > > Cheers,
> > >
> > > Scott
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com
> > > [mailto:nobody@groupstudy.com] On Behalf Of micsoniu@telus.net
> > > Sent: Thursday, September 29, 2005 2:59 PM
> > > To: ccielab@groupstudy.com
> > > Subject: OSPF STUB or NSSA ???
> > >
> > > Hi,
> > >
> > > I have a problem understanding the following
> > > statement:
> > >
> > > "Do not allow external networks into area X"
> > >
> > > How do I know that this is reffering to Type 5 LSAa or Type 7 LSAs ?
> > >
> > > Much appreciated !
> > >
> > > Narcis
> > >
> > >
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