[isalist] Re: Choppy performance when streaming videos from behind ISA
- From: Jerry Young <jerrygyoungii@xxxxxxxxx>
- To: isalist@xxxxxxxxxxxxx
- Date: Thu, 31 Dec 2009 07:35:15 -0500
Are video streams fine when accessing them without ISA in the middle?
Are video streams fine when accessing them with ISA but via your internal
network?
What is the bandwidth utilization on your ISP connection when the choppiness
is observed?
What do the performance metrics (CPU, RAM, disk I/O, etc.) look like on your
ISA Server when the choppiness is observed?
Are you load balancing your streaming servers? What are you using to load
balance them? What do the performance metrics look like on the load
balancer?
Those are the questions that I'd begin with to try to determine the true
scope of the problem.
On Thu, Dec 31, 2009 at 7:25 AM, Mike Anderson <mike@xxxxxxxxxxxx> wrote:
> Greetings All!
>
>
>
> It’s been a while since I made a post, but this list has been absolutely
> invaluable to me – so let me start by thanking all of you J
>
>
>
> We have one of the largest sport fishing sites on the entire web, and ISA
> Server 2004 is our primary method of protecting our precious servers.
> Streaming videos to our clients is something that is relatively new to us,
> but it should be simple enough I would think.
>
>
>
> All our web servers (including our ISA box) are dual Xeons with plenty of
> RAM and either mirrored or RAID hard disk subsystems. About ½ our servers
> are running Windows 2003 64-bit and the other half, 32-bit. Internally, we
> are running on gigabit copper through a Cisco switch – externally, the ISA
> is connected through a 3Com Superstack which has a max link speed of 100Megs
> FDX. Since our ISP feed is 20Megs, I figured there is no reason to invest
> in a faster switch for the external network.
>
>
>
> For our video streaming, we are using Flash Media Server which should
> optimize this whole process.
>
>
>
> If anybody has any suggestions on where we should look first, I would
> greatly appreciate your help on this.
>
>
>
> Thanks again for being such a wonderful resource!
>
>
>
> Mike
>
>
>
--
Cordially yours,
Jerry G. Young II
Microsoft Certified Systems Engineer
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