From: Joe Chang (changjoe@earthlink.net)
Date: Tue Feb 11 2003 - 23:21:26 GMT-3
Take a look at this, from the OSPF Design Guide:
http://www.cisco.com/warp/public/104/3.html#17.5
Say each stub area encompasses two networks, the point to point net between
hub and spoke and a LAN at the satellite office. 400 areas will yield 800
routes. According to the guide, a routing table entry consumes at least 200
bytes. The routing table will take up at least 160 K An OSPF LSA entry
consumes at least 100 bytes. Each area will be sending in one summary LSA,
so the OSPF database will be at least 40 K A Cisco 3700 has 128 MB, so I
don't think memory will be a problem on an ABR.
----- Original Message -----
From: "Aaron Woody" <awoody@columbus.rr.com>
To: <ccielab@groupstudy.com>
Sent: Tuesday, February 11, 2003 7:21 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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