On Mon, Dec 10, 2018 at 07:20:03PM +0000, Sachin Sharma wrote:
> Hi Flavio,
> 
> Thanks for your reply!
> The packet counter in the flow-stats (using dump-flows) is  increasing very
> rapidly.
> I have just sent 1 packet. If I dump traffic through tcpdump, there are
> lots of packets appearing. I think that the same packet is looping back.

Oh, sounds like you have a network loop.
Can't help more without knowing all the relevant connection details.
fbl


> 
> Kind Regards,
> Sachin.
> 
> On Mon, Dec 10, 2018 at 7:01 PM Flavio Leitner <[email protected]> wrote:
> 
> > On Fri, Dec 07, 2018 at 12:24:02PM +0000, Sachin Sharma wrote:
> > > Hi all,
> > > I have created a setup of two nodes : VMa-----VMb. I ran ovs in VMb and
> > > added the following flow entry in vmb:  ovs-ofctl add-flow vmb in_port=1,
> > > actions=in_port.
> > > I now sent a ping message from VMa towards VMb.  As I have a flow entry
> > at
> > > VMb with actions= in_port, I expect that the same packet should be
> > received
> > > by VMa. However, this is not happening.
> > >
> > > Currently, packets are looping back at VMb without even going to VMa
> > > (similar to hair pin). Is this the correct behavior of the above flow
> > > entry? or should VMa receive the packet which it has sent it before to
> > VMb?
> >
> > What do you mean by 'looping back at VMb?'
> >
> > actions=in_port is a special output syntax where you tell OVS that it
> > should send the packet on the ingress port.
> >
> > Check the flow stats - ovs-ofctl dump-flows ovsbr0
> > and see if the rule is being used while you run the test.
> >
> > --
> > Flavio
> >
> >

-- 
Flavio

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