We first limited the RESnet available bandwidth, in and out, to about a
third of our overall bandwidth. We chose 1/3 simply based on number of
RESnet ports vs. number of total ports, and haven't had to adjust it as of
yet. At the very least, this ensures that the rest of campus (where we've
seen very few instances of high bandwidth apps (gaming, P2P, etc.)) has the
needed bandwidth available. This, predictably, choked RESnet. We then
block outgoing P2P (with the exception of IRC shares, haven't figured that
one out yet since we don't want to shut down IRC for chatting) and
prioritize inbound P2P and all gaming at 0. That, combined with a few other
tweaks (setting web traffic for our server network to 6, for example) has
made for a very manageable fall semester. BTW, the Packeteer's reporting
features are a great analysis tool, and I suggest examining them to
determine what you need to prioritize lower and/or block. We're constantly
analyzing our traffic patterns and routinely adjust our policies as needed.
Director of Network Services
Information Technology Division
Middle Tennessee State University
----- Original Message -----
From: "King, John" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, September 10, 2002 8:59 AM
Subject: Re: [CIO] Network Performance or Bandwidth Issues
> Would any of you like to share the priority and/or bandwidth rules that
> set up with Packetshaper? We implemented Packetshaper last year and saw
> immediate results. We, however, put in place a very simple priority scheme
> and no bandwidth reservation. This fall we are seeing major problems
> We, obviously, need to further develop our prioritization scheme and/or
> dedicate bandwidth to certain applications and/or restrict P2P to certain
> times. It would be helpful to see exactly what others are doing.
> -John K.
> John P. King, Ph.D.
> Chief Information Officer
> Ursinus College
> mailto:[log in to unmask]
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