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From Vivek Kumar <>
Subject Re: Bandwidth performance problem - Virtual Router
Date Thu, 12 Nov 2020 11:08:46 GMT
Hello David,

Can you check QoS on your VIF ( Virtual interface on your router ). So in XenServer QoS only
works for egress traffic, I hope it works the same way in XCP-NG also . So Whenever your VM
will initiate the traffic to outside of the world, First QoS on VM’s VIF will be applied
and then you packet will go via router, QoS of VIF on router will be applied. (So whichever
is less you will get the same)

So if necessary  you can create custom offerings for your router and compute offering  with
your desirable network rate and change the offering on your router and VM accordingly.  If
your offerings doesn’t have any network rate defined, then it will use what you have defined
in your global settings. 

Vivek Kumar
Manager - Cloud & DevOps 
IndiQus Technologies
24*7  O +91 11 4055 1411  |   M +91 7503460090 <>

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> On 12-Nov-2020, at 4:26 PM, David González <> wrote:
> Hi anybody,
> I would like to explain an strange behavior in our cloudstack platform.
> We are getting very bad results in the bandwith performance when a Windows virtual machine
is uploading o downloading any file from Microsoft OneDrive. After doing all test that we
are able to do, we believe that the problem is located in virtual router, but we are not sure.
For sample, using the same public IP assigned in a virtual router, directly to Windows server,
bandwidth performance is Good (around 15-20MBps). But using the same public IP in virtual
router, performance decrease to 500KBps. We used the same IP just to ensure that there was
not any block in Microsoft side. This only seems to happen connecting to OneDrive, not to
other sites.
> Firewall: Pfsense 2.4.4
> Cloudstack version:
> Virtualitation: XCP-ng 8.1
> Just to know if someone have any idea of why can be happening this.
> Thank you so much.
> --
> David González
> Customer Success Manager
> <>  |
<>  |  +34 911 333 710  
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