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Windows Server - Overall Peak Bandwidth Being Used?

Posted on 2008-10-09
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Hello Experts!

We are considering combining 2 old servers into 1 new server. The 2 servers are at 2 different sites, and there is currently a 10 Mbps fiber line between the 2 sites. I am upgrading the line, but I would like to know how much of an increase is needed.

I would like a tried and true method for finding out the peak bandwidth in/out of the network card on the soon-to-be-retired server, so I can best determine the true bandwidth needed between the 2 sites.

Any ideas?

Also, please do not just post a link to a software utility, this will not help me much. I would like to know how to easily get a graph/report as mentioned above. ;-)
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Question by:ottobock
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Aaron Street earned 500 total points
ID: 22685165
well youi can jsut use perforance mon  which is the counters built in to windows.

go to admin tools and you will find it there.

if you are having trouble settign it up serch for perfwiz (from microsoft) which will do it all for you. then you can run it for a few days. then load the log file back in to the application and it will display a graph and averages. make sure u set it up to capture network uterlisation

if you want I can show you some more tools you may want to look at. however for the single mesurmaent you want, then you might as well uses Perfmon as it is free and actualy a good tool to know how to use.. you can do a lot of different typr of monitering on it

logman.exe in the windows resorce kit will allow you to create secduled tasks for it so you can have it restart logging after a reboot.
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by:ottobock
ID: 22690555
Hello, Maybe that will work - I'll have a look when I get some time next week. Thanks for the idea!

I'll keep the question open in case any other ideas come across, and post an update next week.
Thanks again!
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by:Aaron Street
ID: 22700767
there are a lot of tools out there that will do waht you need. however prefmon will collect all the information you need. and if you need something to anazlise the logs you cant go wrong with
http://www.codeplex.com/PAL

honestly for a free app, this gives you all the information about each log trace. has built in base lines and templates to help you get started.

forget purchasing a monitering tool. just learn how to use the ones built in for free :)
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by:ottobock
ID: 22705900
OK - I had a chance to check this out, and it looks very good for processor and memory utilization. However, I can not find a counter for Network Utilization? Any ideas?

I've also checked Windows Network Monitor, but can't really fingure out how to get a good average (and graph which would plot the highs/lows)

Thanks again!
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by:ottobock
ID: 22706013
BTW, not sure if this helps, but the system is an FPS, and has:
- Windows Server 2003, SP1 w/ Exchange 2003.

I read another site which says SNMP service must be running, but I do not think this applies, as SNMP is running on this server for other performance monitoring.

I see a large list of perfomance objects, just nothering related to network... Hmmm.
Thanks again for any ideas!
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by:Aaron Street
ID: 22709314
you may have to enable this!

when you run pref wiz, you can chose advance configuration and you will see there is a network counter that you can tick (catuly ticked by default)

and if i use the IIS template file it gives me a perfect network uterlisation?
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by:ottobock
ID: 22715096
This is strange...
I run PerfWiz v1.1.3 > Advanced Configuration > default settings for interval/where to log > Select only "Network Interface" > Click START to begin, I get an error: "Service was unable to add counters" and "Unable to add these counters: \Network Interface(*)\*"

If I run other counters, it's OK, just nothing for network interface... Hmm.
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by:Aaron Street
Aaron Street earned 500 total points
ID: 22718805
that is strange?

I run windows 2003 enterprise edition, and it also works fine on my XP machine, so not sure what the problems is there??

not something I have come accross, could be your version of windows server, or something not set correctly :(

the other way to monitor your bnetwork usage is to put wireshark on the server. then run this and capture data, you can get a throughput graph out of this data, and as well as that if you play around a bit you can look in to what data is being sent and recived as well...
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by:ottobock
ID: 31504715
Thanks DevilWAH!
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