Can you please check now
*
*
*First Case:*

ping * -i .002* 115.x.x.17

watch -n1 "ovs-dpctl dump-flows xapi3 |grep icmp|grep 115.x.x.17"

in_port(21),eth(src=1a:0e:aa:37:1e:6a,dst=00:00:0c:9f:f0:28),eth_type(0x0800),ipv4(src=5.x.x.10,dst=115.x.x.17,proto=1,tos=0,ttl=64,frag=no),icmp(type=0,code=0),
packets:18323, bytes:1795654, used:-0.002s,
actions:push_vlan(vid=40,pcp=0),1

in_port(1),eth(src=00:26:0a:24:b0:00,dst=1a:0e:aa:37:1e:6a),eth_type(0x8100),vlan(vid=40,pcp=0),encap(eth_type(0x0800),ipv4(src=115.x.x.17,dst=5.x.x.10,proto=1,tos=0,ttl=62,frag=no),icmp(type=8,code=0)),
packets:18324, bytes:1795752, used:-0.004s, actions:pop_vlan,21

Flow didnt expire
*
*
*Ping Outcome:*
--- 115.x.x.17 ping statistics ---
29238 packets transmitted, 29185 received, 0% packet loss, time 85337ms

*Second case:*

ping *-i 1 *115.x.x.17

watch -n1 "ovs-dpctl dump-flows xapi3 |grep icmp|grep 115.x.x.71"

Flow appeared frequently lasting 1s and expired soon.Sometimes there were
no flow for 10s
*
*
*Ping Outcome:*
--- 115.x.x.17 ping statistics ---
20 packets transmitted, 20 received, 0% packet loss, time 9012ms






On Thu, Jun 27, 2013 at 11:26 AM, Ben Pfaff <b...@nicira.com> wrote:

> If you want clear answers, then you have to ask questions clearly.
> As-is, I have to guess what you are really asking.
>
> On Thu, Jun 27, 2013 at 11:23:45AM +0530, ananthan wrote:
> > thanks for your quick reply,but my ping didnt get dropped even though
> > latency was varying
> >
> > On Thu, Jun 27, 2013 at 11:21 AM, Ben Pfaff <b...@nicira.com> wrote:
> >
> > > On Thu, Jun 27, 2013 at 11:20:20AM +0530, ananthan wrote:
> > > >                   Could you please confirm this also.If there is no
> > > > corresponding flow in data path how can packets reach with out any
> > > slowness
> > > > or being dropped.
> > > > My understanding about data and control path is control path generate
> > > flow
> > > > for data path and if there is no matching flow in data path, control
> path
> > > > has to regenerate one,in this case there is no flow for +_10 seconds
> so
> > > how
> > > > can packets flow in this 10 seconds.
> > >
> > > If there is no flow for 10 seconds, then it indicates that there were
> no
> > > packets during that time.
> > >
>
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