Hi Govind,
> 4. If port numbe is greater than 5000, idle timeout is 100 seconds.
You can parse the Packet-In data and get the port number by using packet
library.
e.g.)
@set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
def _packet_in_handler(self, ev):
msg = ev.msg
pkt = packet.Packet(msg.data)
pkt_tcp = pkt.get_protocol(tcp.tcp)
if pkt_tcp:
dst_port = pkt_tcp.dst_port
print "dst_port = %d" % dst_port
For more information of packet library, please refer to the Ryu-Book.
(http://osrg.github.io/ryu-book/en/html/packet_lib.html)
Thanks,
Iwase
On 2015年04月13日 08:18, Govind Prasad wrote:
> Hi yusuke,
>
> Thanks fir the info however can you please specify how to implement the
> following scenario:
>
> 1. Iperf client send the tcp message on port 8000
> 2. Iperf server receives the tcp port through ovs
> 3. Ryu asks the ovs to write the flow with default values
> 4. If port numbe is greater than 5000, idle timeout is 100 seconds.
>
> This is what I want to implement. Can you please guide.
>
> Regard,
> Govind
>
> Sent from my iPhone
>
>> On Apr 10, 2015, at 10:23 AM, Govind Prasad <pr.govind1...@gmail.com> wrote:
>>
>> Hi Yusuke,
>>
>> Thanks a lot for the response, I will check and reply with my queries today.
>>
>> Thanks once again!!!
>>
>> Regards,
>> Govind
>>
>> Sent from my iPhone
>>
>>> On Apr 10, 2015, at 12:45 AM, Yusuke Iwase <iwase.yusu...@gmail.com> wrote:
>>>
>>> Hi Govind,
>>>
>>> To learn "How to implement Ryu Application", please refer to the ryu-book.
>>> The first chapter shows implementation of a simple switching hub.
>>> (http://osrg.github.io/ryu-book/en/html/switching_hub.html)
>>>
>>> And, to set the idle timeout, please refer to "OpenFlow protocol API
>>> reference" on the Ryu-Documentations.
>>> If you use OpenFlow 1.3, the following section is helpful for you.
>>> (http://ryu.readthedocs.org/en/latest/ofproto_v1_3_ref.html#modify-state-messages)
>>>
>>>
>>> Thanks,
>>> Iwase
>>>
>>>> On 2015年04月08日 23:44, Govind prasad wrote:
>>>>
>>>> Hi experts,
>>>>
>>>> I am working on an application which works as follows:
>>>>
>>>> 1. The switch gets the first TCP packet
>>>> 2. It sends the packet to the controller
>>>> 3. The controller invokes an application which was looking for TCP
>>>> packets.
>>>> 4. The application sets a extended idle timeout (fore ample 1 hour) and
>>>> sends the flow back to the controller.
>>>> 5. Now the controller sends the flow modification message for this flow
>>>> with the extended idle timeout.
>>>>
>>>> Can anyone help me in building this application which extends the idle
>>>> timeout. I am very new to sdn and programming so would require your
>>>> esteemed support on this.
>>>>
>>>> Regards,
>>>> Govind
>>>> Sent from my iPhone
>>>> ------------------------------------------------------------------------------
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Develop your own process in accordance with the BPMN 2 standard
Learn Process modeling best practices with Bonita BPM through live exercises
http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_
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