Yes, USB redirection is enabled. The bandwidth consumption measurements are executed without any USB devices connected to the client.
When using apps like Word the upload bandwidth consumption back to the VDI is low. But why does the upload bandwidth consumption increases significantly when using content like YouTube or playing a wmx file with WMP? (of course an increase in download is to be expected)
The webclient settings are uploaded in the images LocalResources.png and Performance-Experience.png.
Just to rule it out, can you try connecting without USB redirection enabled and see if there is a difference? (probably not)
Next, let’s focus on EOP Flash Acceleration because in a Win7 to Win7 environment, Microsoft Media Player redirection is used – not EOP Multimedia Acceleration.
Do EOP Flash Acceleration work? So does Youtube the way you expect it to with EOP Flash Acceleration? If it does, do you see a difference when switching it off?
According to your notes, the upload when using Flash Redirection dropped by 0.06 - so it is only the WMP that we need to discuss, right? Or was that a typo?
When using apps like Word the upload bandwidth consumption back to the VDI is low. But why does the upload bandwidth consumption increases significantly when using content like YouTube or playing a wmx file with WMP?
I do not believe there is a specific increase in upload data based upon the content alone, if you look at any IP communication stream you will see that it will consist both download and upload data. This is because the protocols exchange data in both directions for example when opening the connection and when acknowledging the packets coming down the line. Also if there is the occasional resend or error condition then there will be more data uploaded.
For content such as flash and WMP then I would not expect the upload ratio to be as high as Word or PowerPoint where the user is interacting much more and sending keystrokes and mouse movements etc... For Flash and WMP it is mainly content that is streamed down to the client so the upload ratio would be lower. I can show this below using the figures you have provided, for Word, Excel the upload accounts for 14 % of the total data exchange, for Flash it is only 5% of the total data exchange:
Using Office applications like Word, Excel : down 0,41 Mbit; up 0,06 Mbit = (100 / 0.41 x 0.06) = 14.6 % upload Using Internet Explorer - YouTube without flash redirection: down 4,68 Mbit; up 0,24 Mbit = (100 / 4.68 x 0.24) = 5.12 % upload
For Flash the upload data figure is higher only because the download figure is also vastly higher (12x greater) than Office Applications.
Michel Roth
173 Posts
0
March 21st, 2011 06:00
Hi Joris,
Is USB redirection enabled? We have seen devices that upload data even though they should not.
Also, if you could post screenshot of the "local resources" and "experience" tabs of AppPortal that would help.
joris1
2 Posts
0
March 21st, 2011 08:00
Hi Michel,
Yes, USB redirection is enabled. The bandwidth consumption measurements are executed without any USB devices connected to the client.
When using apps like Word the upload bandwidth consumption back to the VDI is low. But why does the upload bandwidth consumption increases significantly when using content like YouTube or playing a wmx file with WMP? (of course an increase in download is to be expected)
The webclient settings are uploaded in the images LocalResources.png and Performance-Experience.png.
Michel Roth
173 Posts
0
March 21st, 2011 08:00
Just to rule it out, can you try connecting without USB redirection enabled and see if there is a difference? (probably not)
Next, let’s focus on EOP Flash Acceleration because in a Win7 to Win7 environment, Microsoft Media Player redirection is used – not EOP Multimedia Acceleration.
Do EOP Flash Acceleration work? So does Youtube the way you expect it to with EOP Flash Acceleration? If it does, do you see a difference when switching it off?
DELL-Andrew W1
378 Posts
0
March 21st, 2011 13:00
Hello,
According to your notes, the upload when using Flash Redirection dropped by 0.06 - so it is only the WMP that we need to discuss, right? Or was that a typo?
Thanks, Andrew.
DELL-David Y
228 Posts
0
March 28th, 2011 10:00
When using apps like Word the upload bandwidth consumption back to the VDI is low. But why does the upload bandwidth consumption increases significantly when using content like YouTube or playing a wmx file with WMP?
I do not believe there is a specific increase in upload data based upon the content alone, if you look at any IP communication stream you will see that it will consist both download and upload data. This is because the protocols exchange data in both directions for example when opening the connection and when acknowledging the packets coming down the line. Also if there is the occasional resend or error condition then there will be more data uploaded.
For content such as flash and WMP then I would not expect the upload ratio to be as high as Word or PowerPoint where the user is interacting much more and sending keystrokes and mouse movements etc... For Flash and WMP it is mainly content that is streamed down to the client so the upload ratio would be lower. I can show this below using the figures you have provided, for Word, Excel the upload accounts for 14 % of the total data exchange, for Flash it is only 5% of the total data exchange:
Using Office applications like Word, Excel : down 0,41 Mbit; up 0,06 Mbit = (100 / 0.41 x 0.06) = 14.6 % upload
Using Internet Explorer - YouTube without flash redirection: down 4,68 Mbit; up 0,24 Mbit = (100 / 4.68 x 0.24) = 5.12 % upload
For Flash the upload data figure is higher only because the download figure is also vastly higher (12x greater) than Office Applications.