Way To Quantify Terminal Server Traffic Speed?

Posted on 2009-12-30
Last Modified: 2013-12-06
Hi Experts,

I am in need of some guidance on how to measure speed across a network.

I have two sites (see picture below for rudimentary idea of layout). Users in site 2 are complaining that the Terminal Server sessions are a bit sluggish, especially in the afternoon.

People running local to the Terminal Servers at site 1 do not experience the same sluggishness, so I am looking for a way to see if I can isolate and show what the connection speed is for Terminal Server users (not just ping response times, I have that).

Users in site 2 (users are running Win XP SP3) are coming across a AT&T MPLS full T1 to our primary location, site 1. They are connecting into our Terminal Servers which are running Server 2008 (not R2).

Some useful data (I believe):
-we have a bluecoat packetshaper 1700 in place doing QoS, with Terminal Server traffic at a very high (only behind VoIP) priority
-a majority of the traffic (approximately 97%) on the T1 is SAN traffic replicating from site 1 to site 2
-there is a light amount of http/https and a CIFS/SMB traffic going across the wire from site 2 to site 1

Here's the question:
Is there any tool that I can use (aside from ping response times) that can tell me what the potential hold up is for my Terminal Server users? I am simply trying to improve their response time so they can work more efficiently. Also, I don't mind paying for a tool, but something reasonable is much preferred (say, under $750).

Thanks, please let me know if you need further details!

Question by:Jeffery Byers
    LVL 32

    Expert Comment

    by:Kamran Arshad

    Wireshark is a nice handy utility for network bottlenecks and protocol error discoveries.

    To check the total available bandwidth you can use IPerf;

    Author Comment

    by:Jeffery Byers
    hi uetian1707,

    i know (and love) wireshark, but for this purpose i was hoping for something a little more automated that did the dirty work for me.

    as for iperf, good tool, but i have something that tells me what amount of the bandwidth is used.

    i am looking for something that breaks the traffic down and shows me "terminal server traffic is getting stepped on by such-and-such traffic between 3 and 5 pm".

    any ideas for that?

    LVL 32

    Accepted Solution

    To get protocol level information you can use the flow technology provided your switches support it. They can show the traffic on per IP and per protocol basis.

    Nprobe can do this for you;

    Author Comment

    by:Jeffery Byers

    thanks for the input, nprobe looks like a great option, i have been poking around with ntop already, nprobe looks promising.

    take care.

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