From: Chris Lewis \(chrlewis\) (chrlewis@cisco.com)
Date: Sun Jun 26 2005 - 17:43:02 GMT-3
Kind of. Please see my earlier post on this thread.
If you have R1 connected to R3, R1 is in area 1 and R3 is in area 3,
they will have to form a Level 2 adjacency. However, you can put a
second NET value in the configuration of R3 to also make it a member of
area 1, and you can then make the R1 to R3 adjacency level 1. R3 can
then form a level 1 adjaency on another interface with a router in area
3. So the net result (from one perspective) is that R3 is in area 3, but
it forms a level 1 relationship with R1 in area 1.
Just trying to point out how things could be worded to confuse things on
this issue in the exam.
Chris
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Bajo
Sent: Sunday, June 26, 2005 2:02 PM
To: san
Cc: John Matus; lab
Subject: Re: isis adjacencies
My understanding is if two routers are in two different areas, they must
use Level2.
On 6/25/05, san <san.study@gmail.com> wrote:
> Answer to question 1:
> Yes it should be pingable.
> L1 only router will have a default-route to reach the echo source
> (assuming ping from L2 only Rtr).
> L2 only router will have a L2 route to reach this L1 router. (because
> it learnt via L2 neighbor).
>
>
> Answer to Question 2:
> I dont know
>
> /SAN
>
> On 6/25/05, John Matus <jmatus@pacbell.net> wrote:
> > just trying to make sense of some things i've noticed with isis i
> > know that level-1 areas act like stub areas, and level-2 areas act
> > like transit areas.
> > question 1: should you be able to ping from a level 2 area to a
level 1
> > router, if that router is NOT directly connected? e.g.- not a
> > level-1-2 router.
> > question 2: if you have a router that belongs to 2 areas, does that
> > mean that the router must be a level-1-2 or at least a level-2? i
> > seem to remember an IE lab where there was a router <R6> that had a
> > level-1 adjaceny to BB1 and a
> > level-1-2 adjaceny to another router. is it possible for a router
> > to have 2
> > level-1 adjacenies to two different networks (and still pas on
> > routing updates between them)? this lab i'm talking about had:
> > BB1-----level-1
> > areaY--------R6--------level-2--areaZ-----------R3----
> >
> > and it was able to pass the routes from bb1 to r3 <if i remember at
> > all
> > correctly>
> > just trying to get my facts straight.
> >
> >
> > Regards,
> >
> > John D. Matus
> > MCSE, CCNP
> > Office: 818-782-2061
> > Cell: 818-430-8372
> > jmatus@pacbell.net
> >
> > ____________________________________________________________________
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-- Kind Regards,Bajo
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