Current trends in capacity planning and oversubscription

John van Oppen jvanoppen at
Wed Nov 10 11:03:06 CST 2010

I am on the technology committee of the college I attended (Whitman) and they currently have a 200 mbit/sec via gigE link for a campus of just under 2000 and every building has at least 1X gigE into their backbone.    They are in a rural area (walla walla, wa) but they don't generally have more than 100 or 150 mbit/sec of usage, fitting nicely in the below recommendations. 

-----Original Message-----
From: Michael Loftis [mailto:mloftis at] 
Sent: Wednesday, November 10, 2010 8:48 AM
To: Sean Donelan
Cc: nanog
Subject: Re: Current trends in capacity planning and oversubscription

On Tue, Nov 9, 2010 at 10:26 PM, Sean Donelan <sean at> wrote:
> While the answer is always it depends, I was wondering what the 
> current rules of thumb university network engineers are using for 
> capacity planning and oversubscription for resnets and admin networks?
> For K-12, SETDA ( is
> recommending:
> - An external Internet connection to the Internet Service Provider of 
> at least 100 Mbps per 1,000 students/staff
> - Internal wide area network connections from the district to each 
> school and between schools of at least 1 Gbps per 1,000 students/staff
> How does that compare with university and enterprise network rules of thumb?

More information about the NANOG mailing list