[ovs-discuss] Sending traffic out the originating
Ben Pfaff
blp at nicira.com
Wed Sep 11 17:03:17 UTC 2013
On Wed, Sep 11, 2013 at 11:09:47AM -0400, Aws Auger wrote:
> I currently am trying to use a Beacon controller to create a FlowMod that
> sends incoming traffic from port 1 back out port 1 after modifying some
> fields. I currently am trying to achieve this through OFActionOutput(port
> 1).
>
> It appears that Open vSwitch blocks this behavior and I do not see packets
> being outputted on port 1. If I change OFActionOutput to send out to a
> different port (i.e. 2), I can see the outgoing traffic on that port. This
> result leads me to believe that my controller is behaving correctly but
> Open vSwitch recognizes that the controller is attempting to send traffic
> out the originating port and blocks it.
>
> My question is does an option exist to turn this behavior off? If not, is
> there a workaround I can do to accomplish what I want?
Somehow users (not just you) get the idea that Open vSwitch is doing
something really weird here, but OVS merely implements what the OpenFlow
spec requires.
I sent out an addition to the FAQ for review.
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