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Citrix general question

Posted on 2006-06-15
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OK.... I am not really asking for a problem to be solved (although that would help) but I am looking for more observations, so i going to be general in my initial question and if required get into more detail.

We currenlty have a group of 4 clustered citrix servers located in Europe. We have a  office located on the East Coast of North america with direct MPLS t1 circuit to Europe. We do have a  VPN over that circuit and our ping time are about 120 ms. The only traffic routed down this line is citrix.

So from what I told you, would you expect Citrix to be dependable and responsive? Can Citrix work with latency at those levels? Are those latency level consistent with a trans Atlantic MPLS line?

the above should be enough to start the conversation off.


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Question by:catlin1
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by:mgcIT
ID: 16916296
it sounds like you are leading us into a trap, but I'll go ahead and take the bait and say... yes I would expect citrix to be dependable on that connection.  Of course there are many factors that will affect user experience such as number of users and what they are doing in citrix (printing, transferring files, etc...).
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by:catlin1
ID: 16916332
Published applications via IE, such as MS Office, internal websites & printing with screwdrivers client. We have about 8 users.

I support 5 offices, each office 8 to 12 people..... 90% of my helpdesk calls come from that one office, the other offices do not use citrix.

So you say it should work? Even with the latenancy?
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by:catlin1
ID: 16916370
The issues,

Applications freezing, lagging & disappearing. Weird stuff, printers disappear, print sometimes comes out in some alien language.
It kinds of reminds of supporting Win 95 & 98, buggy problems that were fixed after a reboot, but these come & go all day long.
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by:mgcIT
ID: 16916399
'should work' = yes..

Again, the user experience can degrade quickly if printing is happening a lot, or if there are a lot of files being transferred back & forth.

120ms is not bad actually.. I'm at about 80-100ms when I ping a router from N. California to S. California.  I couldn't tell you what is normal for a trans Atlantic line though.  I have no experience with that.
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by:catlin1
ID: 16916525
Thank a bunch for the input, one last thing

"'should work' = yes.."  Have you seen it work on a consistent basis? I can rub two sticks togther and it should produce fire, but it doesn't mean it the best and easiest way.

Thanks again.......

If I was (AM) having issues, were would you first look at?
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by:catlin1
ID: 16916557
Sometime I type faster than I think...

All the data that they are accessing is in Europe along with the evil citrix servers... They do print but nothing out of the normal.
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by:mgcIT
ID: 16916594
are you asking if citrix should work on a consistent basis?  the answer to that is Yes.

Do you have other sites that connect to this same citrix farm?  
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by:catlin1
ID: 16916665
Yes, from other parts of europe... Same issues....

Citrix mangement console monitors server and they are NOT over utilized

I assume you know a bit about Citrix, were would recommend we start looking to solve the issue.

I'll give you the points , just give me one more response.

Thanks
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mgcIT earned 500 total points
ID: 16916696
>>Yes, from other parts of europe... Same issues....

Ok then this tells me it has nothing to do with your latency over the trans-atlantic line...

To start fixing your problems I would check the event viewer and start documenting errors you see there, and specific errors with citrix (such as losing printers, etc...).  Then start looking for answers on an individual basis either here, or the forums at citrix.com.  It's hard to give you more direction than that without knowing some specific things such as OS, Citrix Version, Client version... etc...

If you are running Citrix 4.0 there is a hotfix rollup that was recently released that may fix some of your errors.  Older versions of citrix of course will have many more updates & hotfixes.

http://support.citrix.com/hotfixes.jsp
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by:catlin1
ID: 16920319
Going to gather required information and repost.

Thanks
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