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List:       openvswitch-discuss
Subject:    [ovs-discuss] Unexpected retransmissions
From:       abhishek.lists () gmail ! com (Abhishek Chanda)
Date:       2012-08-21 18:00:27
Message-ID: CACom5vr5JznYoUk=yeFh0Tcp8BvxLn_S95G+0j21hX3V4ORNiQ () mail ! gmail ! com
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Hi,

I switched to KVM and this works fine now.

Thanks

On Mon, Aug 20, 2012 at 3:49 PM, Abhishek Chanda
<abhishek.lists at gmail.com> wrote:
> Yes, I am monitoring the interface on the VM and the tap interface on the host.
> I have a flow to redirect traffic to my controller and when the
> controller sees a HTTP packet, it writes a flow to redirect all
> subsequent HTTP packets to a different server. The flow is being
> written properly and it gets hit also. But all subsequent packets seem
> to be duplicated, one goes to the original server and one to the new
> server. This does seem like an issue with Virtuabox. Thanks for the
> reply.
>
> Thanks
>
> On Mon, Aug 20, 2012 at 3:10 PM, Jesse Gross <jesse at nicira.com> wrote:
>> On Mon, Aug 20, 2012 at 9:56 AM, Abhishek Chanda
>> <abhishek.lists at gmail.com> wrote:
>>> Hi Jesse,
>>>
>>> Thanks for the reply.
>>> Those are indeed packet duplications. But I do not understand what
>>> causes the problem. I don't have a physical network as such, all VMs
>>> hosted on Virtualbox connect to OVS through tap interfaces. What can
>>> possible cause this?
>>
>> You're monitoring on the interface in the VM and on the tap interface
>> in the host and packets are duplicated in between?  If that's the case
>> then you should take a look at VirtualBox because OVS is not involved
>> in that path.

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