[ovs-discuss] How to buffer on OVS

[Hiroshi Miyata]

Hi Ben,

First, I need to say I am using OpenFlow 1.3.

I am relieved to hear OVS should buffer.
I guess there are some misunderstanding in my side.

But at least what I am facing is difference between switch at trema-edge 
and ovs.
With same controller, the switch from trema-edge specifies buffer_id 
while ovs does not.

I will send you the captured packets personally, I appreciate very much 
for your investigataion.

Best Regards,

...hiroshi miyata



(13/05/01 1:57), Ben Pfaff wrote:
> On Tue, Apr 30, 2013 at 03:02:46PM +0900, Hiroshi Miyata wrote:
>> I am now trying to run OVS of Kernel module with
>> Trema-edge(learning_switch code).
>> Both are in a box. (Ubuntu 12.10)
>>
>> When I see the of13 packets, the buffer_id in packet_in messages are
>> 0xffffffff(OPF_NO_BUFFER)
>> for both IPv4 packets and IPv6 packets.
>> Is it possible to make OVS buffer the packets?
> OVS should be buffering packets.  I am surprised to hear that it is
> not.
>
> Are these packets from flow misses or as a result of output to
> OFPP_CONTROLLER?  OVS only buffers packets that result from flow misses.