From: Anthony Bonilla (anthonybonilla.ccie@gmail.com)
Date: Mon Jul 09 2007 - 15:22:39 ART
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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