From: Aaron Woody (awoody@columbus.rr.com)
Date: Wed Feb 12 2003 - 00:06:47 GMT-3
-----Original Message-----
From: Aaron Woody [mailto:awoody@columbus.rr.com]
Sent: Tuesday, February 11, 2003 9:50 PM
To: Chuck Church
Subject: RE: OSPF for 400+ Locations
Chuck,
That is correct 1 hub with all 400 remotes going to it via point-to-point
sub interfaces. The host will be DS3, CIR's on PVC's will vary. OSPF area 0
will have 3 routers, each remote area (400+) will have 1 router. Since each
remote only needs 3 addresses I figure I can summarize each remote into the
sub interface subnet. It will waste a little address space but if I don't I
will have over 800 routes in table using their current scheme. Currently
they are using a 172.16.0.x/30 for WAN and 10.x.x.x/28 for LAN. Do you think
I will be fine with that many areas. Also, should I extend area 0 across wan
or should I place backbone router wan interface in remote area? Is there any
difference?
Thanks!
Aaron
-----Original Message-----
From: Chuck Church [mailto:ccie8776@rochester.rr.com]
Sent: Tuesday, February 11, 2003 9:33 PM
To: Aaron Woody; ccielab@groupstudy.com
Subject: Re: OSPF for 400+ Locations
Aaron,
When you say hub and spoke, is there just one hub with all 400 spokes
going to that? What is the CIR at both the spoke end and the hub end? Is
there any redundancy, like dial backup? Try to keep your areas to 20 to 30
routers in each. With some careful planning, especially with the addressing
(make is summarizable), it'll work fine.
Chuck Church
CCIE #8776, MCNE, MCSE
----- Original Message -----
From: "Aaron Woody" <awoody@columbus.rr.com>
To: <ccielab@groupstudy.com>
Sent: Tuesday, February 11, 2003 6:21 PM
Subject: OSPF for 400+ Locations
> I have experience with OSPF but I am looking for suggestions on how to
> implement OSPF in a Frame-Relay Hub/Spoke topology for 400+ locations.
Each
> location only needs to know about the host through a default. My first
idea
> is to have a separate area for each location and make it a totally stubby
> area. Is there a better way. My concern is that there will be 400+ areas
in
> the OSPF Database at the host. The host will be a Cisco 3745. The remotes
> will all be Cisco 1751.
>
> Thanks!
>
> Aaron
>
> [GroupStudy.com removed an attachment of type application/ms-tnef which
had a name of winmail.dat]
> .
.
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