Solved

What latency is normal for a Citrix Netscaler - Virtual Appliance

Posted on 2013-12-05
7
998 Views
Last Modified: 2016-10-25
HI There,

We have a customer who is running a citrix solution and while it performs pretty well I've noticed a large amount of latency from the Citrix Netscaler, even from a local device.

Anything else on the network pings at <1ms but the Netscaler is all over the place.

When there are about 50 users connected I've seen it spike randomly to 1000ms, which translates to lag within the Citrix Session.

In my troubleshooting we have found that the latency gets worse the more people are connected.

Does anyone know why it does this, and if there is a good solution to getting it fixed? Or is it something I should not even worry about?

I've attached a screenshot of what I am referring to.

Thanks in advance,

Ben
0
Comment
Question by:eXiaWeb
7 Comments
 
LVL 24

Accepted Solution

by:
Sekar Chinnakannu earned 405 total points
ID: 39700435
did you enabled qos in your environment ? if you not try to enable and check.
0
 
LVL 21

Expert Comment

by:robocat
ID: 39700737
I assume you're talking about a physical appliance, not a VPX ?

Such high latency is not normal. Should you worry? If users complain of session lag, then of course yes.

I would recommend you start with basic network troubleshooting by your network admin. Check for errors on the switchports the device is connected to etc, flow control, network saturation, ...
0
 

Author Comment

by:eXiaWeb
ID: 39703812
We are using Netscaler VPX.

@ sekarc4u - Are you talking about enabling QoS within our Vmware environment or on the Netscaler itself?
0
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 21

Expert Comment

by:robocat
ID: 39704043
VPX-10, 200, 1000 ?

What are the resources allocated to the VM?
0
 
LVL 2

Expert Comment

by:kabilanis
ID: 39704294
One small information, in our environment the architects came up with a parameter. For a user to have seamless experience in VDI, the latency should be less than or equal to 300ms. Any latency beyond this will be detected as slowness or shaggering experience by end user.
0
 
LVL 19

Expert Comment

by:compdigit44
ID: 39707199
1) Are responce time slow when you use the IP and FQDN?
2) In the Netscalare for your services are you using SSL or SSL Bridging?
3) Are you using Client-IP insertion or Source-IP?
4) How many Virtual Servers does the Netscaler host?
5) What is the Bulid number of the VPX
0
 

Author Closing Comment

by:eXiaWeb
ID: 40308952
Thanks!
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Exchange server is not supported in any cloud-hosted platform (other than Azure with Azure Premium Storage).
HOW TO: Install and Configure VMware vSphere Hypervisor 6.5 (ESXi 6.5), Step by Step Tutorial with screenshots. From Download, Checking Media, to Completed Installation.
Teach the user how to convert virtaul disk file formats and how to rename virtual machine files on datastores. Open vSphere Web Client: Review VM disk settings: Migrate VM to new datastore with a thick provisioned (lazy zeroed) disk format: Rename a…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.

867 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now