From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Thu Mar 14 2002 - 21:54:49 GMT-3
I have not try this, based on the logic, in area 1, you will receive all other
areas route in the form like a distance vector, so when you in area 1 internal
router and do area x range, it is for it self to use but not for others. Well,
I learn some thing...but will test it some day.
> Parry Chua
>
>
-----Original Message-----
From: Williams, Glenn [mailto:WILLIAMSG@PANASONIC.COM]
Sent: Thursday, March 14, 2002 9:40 PM
To: Williams, Glenn; Chua, Parry; EdmondsSG@aol.com;
ccielab@groupstudy.com
Subject: RE: area 0 summarization - yes or no..
Let me clarify on this because you may misunderstand. Not trying to appear
as know-it-all because I'm far from that. But I've seen this work. Go to a
router that is totally in area 1 (any non-zero area) and issue the command
"area 0 range xxxx" That's right area 0 range in a router that is totally
not in area 0. Do it for a route that originated in area 0 Watch what
happens. You will see the summarization you are trying to create.
GW
-----Original Message-----
From: Williams, Glenn
Sent: Thursday, March 14, 2002 7:17 AM
To: 'Chua, Parry'; EdmondsSG@aol.com; ccielab@groupstudy.com
Subject: RE: area 0 summarization - yes or no..
Not true. You can issue this command on a non ABR and it will work.
GW
-----Original Message-----
From: Chua, Parry [mailto:Parry.Chua@compaq.com]
Sent: Thursday, March 14, 2002 5:10 AM
To: EdmondsSG@aol.com; ccielab@groupstudy.com
Subject: RE: area 0 summarization - yes or no..
I have done several test, answer is yes, you can in theory and both
practical.
(R1)-<area 1>-(R2,abr)-<area 0>-(R3,abr)-<area 2>-(R4)
<--- (area 2, area 0 summary)
( area 0, area 1 summary)-->
area range alwasy done at ABR....
Regards
Parry
-----Original Message-----
From: EdmondsSG@aol.com [mailto:EdmondsSG@aol.com]
Sent: Thursday, March 14, 2002 6:34 PM
To: ccielab@groupstudy.com
Subject: area 0 summarization - yes or no..
I 'm abit confused by posts at groupstudy and what I've read in a number of
books..
Q. can you use the area XX range xxx.xxx.xxx.xxx command to summarize
routes
in area 0 ?
some books - doyles tcp/ip vol1 /caslow say you can, but the recenet lab
studies book says you can't !!
I say that you can because i've used it in ios 12.1 and earlier to solve the
flsm to vlsm dilemma when redistributing between ospf and igrp. Maybe it
does work but i'm missing some lurking issues that i'm not aware of yet.
Also
an automatic summary is now created to null0 !! i'm sure it didn't do
that
b4 either.....
any thoughts ?
Si
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