Re: Question about Type 7 LSA

From: Anthony Bonilla (anthonybonilla.ccie@gmail.com)
Date: Wed Jul 11 2007 - 01:04:56 ART


Thank you both Sadiq and Yemi - I have not read anything about OSPF recently
after passing my lab exam back in April '07 so I wanted to make sure that I
don't misstate anything. But I appreciate you both letting me know that I
was on a right track. Thanks again and chat to you guys later.

On 7/10/07, Salau, Yemi <yemi.salau@siemens.com> wrote:
>
> Perfect Answer except for the bit that says "Someone pls correct me if I
> wrong here" :-)
>
> Many Thanks
>
> Yemi Salau
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Anthony Bonilla
> Sent: Monday, July 09, 2007 7:23 PM
> To: Snyder, Daniel P
> Cc: ccielab@groupstudy.com
> Subject: Re: Question about Type 7 LSA
>
> Hello Dan,
>
> Someone pls correct me if I wrong here but I always looked at N1 and N2
> routes same as E1 and E2 routes being that N1 accumulates the cost
> whereas
> N2 does not and N1 is preferred over N2 just as E1 is preferred over E2.
> These N1 and N2 routes are only seen in NSSA area and they are converted
> to
> E1 and E2 once advertised out of NSSA towards other areas. HTH.
>
> Tony
>
>
> On 7/9/07, Snyder, Daniel P <DPSnyder@hammond.k12.in.us> wrote:
> >
> > I have a quick question that I can't seem to remember or find an exact
> > answer for. What are the differences between a route being shown as "O
> > N1" vs. "O N2" in the routing table? I thought "O N2" was just showing
> > what the ASBR is saying are external routes coming in to the NSSA, but
> I
> > forgot what the "O N1" was? Is that after the ABR translates it to a
> > type 5 LSA and floods it in to the backbone? Is that what the other
> > routers see instead of a E1/E2 route? Any help would be appreciated.
> > Thank you!
> >
> >
> >
> > Dan Snyder
> >
> >
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