RE: Real world bandwidth control
- From: "Thomas W. Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Fri, 3 Aug 2001 20:12:32 -0500
Hi David,
Go to the section on Bandwidth Control in our book, and you'll get the
"real deal" on how it works. I have implemented bandwidth control in
several environments, but I always have to babysit the things for a few
weeks and watch the counters for a few hours every day to fine tune the
settings. I'll tell you one thing, its a lot easier to come up with an
acceptable solution with a T1+ connection, then it is for a lower
bandwidth connection. The biggest factor is the number of rules you
have, and the relative % of time each rule is active, AND which rules
like to "hang out" with idle connections and for how long.
I *always* have some ISA Server's bandwidth counters running via a
Terminal session on my machine (using an out-of-band connection, of
course). The way its implemented now, its truely and art, and not a
science. I look forward to the time when they implement a bit rate based
solution like that you see with IIS web sites :-)
HTH,
Tom
www.isaserver.org/shinder
Thomas W Shinder, M.D., MCSE, MCT
-----Original Message-----
From: David Dellanno [mailto:david@xxxxxxxxxx]
Sent: Friday, August 03, 2001 5:18 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Real world bandwidth control
http://www.ISAserver.org
I believe ISA does support gainularity of assing bandwidth control to a
user
or group.
QoS should be tested for each protocol that needs to be regulated on an
as-needed basis. Any application/os that "allows network administrators
to
use their exitsting resoures efficintly and to guarentee that critical
applications receive high-quality service without having to expand as
quickly or upgrade their network" - Network Infrastructure
Adminsitration
book, is worth testing.
Service Pack 2 resolved the issue with QoS
http://www.isaserver.org/pages/bugs.htm
-----Original Message-----
From: Bell, Stephen [mailto:SBell@xxxxxxx]
Sent: Friday, August 03, 2001 5:12 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Real world bandwidth control
http://www.ISAserver.org
Long time listener, first time caller.
Has anyone implemented bandwidth control, both by protocol and by user?
Is it practical using ISA? Practical as in, it really works and you've
tested to confirm it?
I think I heard somewhere on this list that you could not allocate a
specific portion of the bandwidth to one user (or group). Is this true?
What problems are there in using this feature? Any? Does it cause any
other features to break?
Cheers
Steve
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