Jump to content
Welcome to our new Citrix community!
  • 0

Skype for Business - Poor performance for Citrix Users


Kevin Coates1709160514

Question

Hi,

 

Looking at some reported issues regarding poor quality when users are using Citrix. Full Desktop clients are OK.

 

I'm looking at the Call Detail Report where a user on Citrix is calling a user on the same subnet. They have the full HDX plugin so the caller endpoint is the user's PC (which indicates the media is coming from the PC rather than the server which is what should give it better performance). Looking at the left hand side column (the Citrix HDX user), it shows Caller Link Speed as 0 kbps where as the full desktop client shows link speed as 1000000 kbps. 

 

The caller A/V EDGE server is also blank??  Looking at a call from a full Desktop Client to full Desktop client, both sides have an A/V EDGE server shown. 

 

Is this normal for Citrix?

 

Capture.thumb.PNG.b638d21d039fab04100463faf50aef15.PNG

 

 

Onto the audio stream and the actual poor performance. All Citrix users have similar long avg. round trip performance metrics. Users within the site who are full desktop clients and call each other show perfect performance.

 

 

Capture2.thumb.PNG.8a2f96210f21a010cf13b988cb70bc5f.PNG

 

Can anyone provide assistance in reading the SfB reports or have knowledge with resolving poor performance when using Citrix HDX?

As the media is coming from the client, I'm assuming no firewall rules need to be setup from the Citrix servers and I don't need to add the Citrix server FQDN's into the EDGE hosts file.

Regards

Link to comment

11 answers to this question

Recommended Posts

  • 0
On 1/2/2019 at 9:56 AM, Kevin Coates1709160514 said:

Hi,

 

Looking at some reported issues regarding poor quality when users are using Citrix. Full Desktop clients are OK.

 

I'm looking at the Call Detail Report where a user on Citrix is calling a user on the same subnet. They have the full HDX plugin so the caller endpoint is the user's PC (which indicates the media is coming from the PC rather than the server which is what should give it better performance). Looking at the left hand side column (the Citrix HDX user), it shows Caller Link Speed as 0 kbps where as the full desktop client shows link speed as 1000000 kbps. 

 

The caller A/V EDGE server is also blank??  Looking at a call from a full Desktop Client to full Desktop client, both sides have an A/V EDGE server shown. 

 

Is this normal for Citrix?

 

Capture.thumb.PNG.b638d21d039fab04100463faf50aef15.PNG

 

 

Onto the audio stream and the actual poor performance. All Citrix users have similar long avg. round trip performance metrics. Users within the site who are full desktop clients and call each other show perfect performance.

 

 

Capture2.thumb.PNG.8a2f96210f21a010cf13b988cb70bc5f.PNG

 

Can anyone provide assistance in reading the SfB reports or have knowledge with resolving poor performance when using Citrix HDX?

As the media is coming from the client, I'm assuming no firewall rules need to be setup from the Citrix servers and I don't need to add the Citrix server FQDN's into the EDGE hosts file.

Regards


Hi fowler.

There is a feature gap in the QoE report that you are looking at between the Skype/Lync client and RTOP client. We are actively working on closing down that feature gap in the future. Most important values are shown however. Just make sure to use the latest CU release of RTOP.

 

Also for the high roundtrip time there is a fix in version 2.5. Page 11:  https://docs.citrix.com/en-us/hdx-optimization/downloads/optimization-pack-2-5.pdf

Link to comment
  • 0
3 minutes ago, Daniel Szomboti said:


Hi fowler.

There is a feature gap in the QoE report that you are looking at between the Skype/Lync client and RTOP client. We are actively working on closing down that feature gap in the future. Most important values are shown however. Just make sure to use the latest CU release of RTOP.

 

Also for the high roundtrip time there is a fix in version 2.5. Page 11:  https://docs.citrix.com/en-us/hdx-optimization/downloads/optimization-pack-2-5.pdf

 

Thanks for the reply Daniel.

 

I was aware of the discrepancy in the high RTT being reported from previous versions of RTOP.

 

We are using RTOP 2.6 in this instance. That pdf makes no mention of an issue:

https://docs.citrix.com/en-us/hdx-optimization/downloads/optimization-pack-2-6.pdf

 

Is this still an issue but has been missed from the known issues?

 

If it was just reporting, I probably wouldn't be too bothered but the actual user experience that's being reported isn't great either in terms of audio quality, We have no issues from full desktop clients.

 

All the Citrix documents have been looked at and adhered to which is why I posted this just to see if I'm missing something or if other people are having the same issues.

 

LOP-1511 has been mentioned about audio issues relating to headsets. Is this correct and something that is being worked on and relates to the issue I have reported?

 

Regards

Link to comment
  • 0
1 hour ago, Kevin Coates1709160514 said:

 

Thanks for the reply Daniel.

 

I was aware of the discrepancy in the high RTT being reported from previous versions of RTOP.

 

We are using RTOP 2.6 in this instance. That pdf makes no mention of an issue:

https://docs.citrix.com/en-us/hdx-optimization/downloads/optimization-pack-2-6.pdf

 

Is this still an issue but has been missed from the known issues?

 

If it was just reporting, I probably wouldn't be too bothered but the actual user experience that's being reported isn't great either in terms of audio quality, We have no issues from full desktop clients.

 

All the Citrix documents have been looked at and adhered to which is why I posted this just to see if I'm missing something or if other people are having the same issues.

 

LOP-1511 has been mentioned about audio issues relating to headsets. Is this correct and something that is being worked on and relates to the issue I have reported?

 

Regards


The fix is in 2.6 already being introduced in 2.5 - no need to mention it as the issue was resolved already in this release.

No other customer reported bad RTT values being reported.


There are so many factors that can lead to poor user experience. What kind of issues do your users have? Broken audio, bad echo, etc. ?

- Is the desktop in the same subnet as the RTOP client? (obvious but still worth asking...)

- Some lower end headsets dont have AEC, etc. (the ones not Skype Certified) and will poor experience. Skype for business client seems to handle in rare cases the echo better than RTOP (different implementations in the two products - I am sure there is instances where RTOP does better than Skype - but nobody reports those :)

If you have a suscription from Citrix I would suggest opening a case and we can have a look at possible causes.

Daniel

Link to comment
  • 0

We are running the 2.5 of the HDX and are also seeing the high RTT times in your screenshot. I have just tested this on 2.8 and get the same issue. From what I can see the figures start low and then increase throughout the day. I have just raised a support case with Citrix as we are trying to troubleshoot issues and can't really see the true performance at the moment with these figures. It is also making our overall call quality look bad.

Link to comment
  • 0
On 6/18/2019 at 1:33 PM, Mark Clayton1709155289 said:

We are running the 2.5 of the HDX and are also seeing the high RTT times in your screenshot. I have just tested this on 2.8 and get the same issue. From what I can see the figures start low and then increase throughout the day. I have just raised a support case with Citrix as we are trying to troubleshoot issues and can't really see the true performance at the moment with these figures. It is also making our overall call quality look bad.

Hi Mark. 

There was a bug in versions leading up to 2.8 where wrong high jitter values were reported. But there was no performance impact, just the UI of reports. 

Test with 2.8 and if there is still high values there is more than likely a genuine performance issue. 

Daniel 

Link to comment
  • 0

Daniel, we are running 2.8 on both client and server and gradually see the Avg. round trip increase throughout the day. A users first call might be 97ms but the 10th can go as high as 965ms. The calls in between will be in between these numbers. For example call 5 will show an average of 730ms.

 

The actual performance of the calls doesn't reflect these figures so it does look like  a reporting bug.

 

I have raised a support case but they haven't yet found a solution.

 

Thanks

 

Mark

Link to comment
  • 0
23 hours ago, Mark Clayton1709155289 said:

Daniel, we are running 2.8 on both client and server and gradually see the Avg. round trip increase throughout the day. A users first call might be 97ms but the 10th can go as high as 965ms. The calls in between will be in between these numbers. For example call 5 will show an average of 730ms.

 

The actual performance of the calls doesn't reflect these figures so it does look like  a reporting bug.

 

I have raised a support case but they haven't yet found a solution.

 

Thanks

 

Mark

 

Ok, I see. What is the case number (PM me)? 

Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...