[ovs-discuss] tunnel between open vswitch on xenservers

terryxing xingtianyi at gmail.com
Tue Oct 18 04:25:34 UTC 2011

Thanks for your timely reply.

I actually did not send any data manually by myself. Yes, the gre tunnel
should not send that much traffic.

I will use wireshark to check what is going on there.

Thanks very much.

On Mon, Oct 17, 2011 at 9:22 PM, Jesse Gross <jesse at nicira.com> wrote:

> 2011/10/17 terryxing <xingtianyi at gmail.com>:
> > Hi Dear Open Vswitch Developer.
> >
> > I am having a problem after I establish the tunnel between two
> xensenvers.
> > The GER Tunnel occupies a huge portion of the bandwidth. When I enable
> the
> > netflow on open vswitch, the GRE tunnel has over 95% traffic of the
> > xenserver.
> Tunnels do not generate traffic on their own, so your must be sending
> a large amount of traffic over the tunnel.  Netflow doesn't look into
> tunnels, so all encapsulated traffic will look the same to it.

Best regards,

Tianyi Xing (邢天翼)

PhD Student, Research & Teaching Associate
SNAC:Secure Networking and Computing group
School of Computing, Informatics, and Decision Systems Engineering
Ira A. Fulton School of Engineering,
Arizona State University
Tempe, AZ 85281, USA
Cell: (+1) 480-678-3090
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