Thanks so much Murphy,
Chanthan
On Friday, April 11, 2014, Murphy McCauley <murphy.mccau...@gmail.com>
wrote:
> See "Working with Addresses" in the manual. Ethernet addresses in POX are
> of class EthAddr, not strings. You should compare against
> EthAddr("00:00:00:00:00:01").
>
> Some other comments inline.
>
> On Apr 10, 2014, at 11:07 PM, Chanthan Hel
> <hel.chantha...@gmail.com<javascript:;>>
> wrote:
>
> > Dear all,
> > I want to send the packet out of the switch port and I write the code.
> >
> > # Method for just sending a packet to any port (broadcast by default)
> > def send_packet (event,dst_port):
> > msg = of.ofp_packet_out(in_port=event.ofp.in_port)
> > if event.ofp.buffer_id != -1 and event.ofp.buffer_id is not None:
>
> It should never be -1. Ever. If it is ever -1, it's a bug.
>
> > # We got a buffer ID from the switch; use that
> > msg.buffer_id = event.ofp.buffer_id
> > else:
> > # No buffer ID from switch -- we got the raw data
> > if event.ofp.data:
>
> This logic appears backwards.
>
> > # No raw_data specified -- nothing to send!
> > return
> > msg.data = event.ofp.data
> > msg.actions.append(of.ofp_action_output(port = dst_port))
> > event.connection.send(msg)
>
> This above function is redundant.
> po = of.ofp_packet_out(data = event.ofp) should do it.
>
> > ## Create packet flow
> > def _handle_PacketIn (event):
> > packet = event.parsed
> > if packet.src == "00:00:00:00:00:01":
> > send_packet(event, 2)
> > else:
> > send_packet(event, 3)
> >
> > def launch ():
> > core.openflow.addListenerByName("PacketIn", _handle_PacketIn)
> >
> > When packet arrive at switch although it have mac address
> "00:00:00:00:00:01" , it always go to the else condition
> > " else:
> > send_packet(event, 3)"
> > Please give me some suggestion
> > Chanhan
> >
> > --
> > Mr. Chanthan Hel
> > Electrical engineering, Faculty of Engineering,
> > Chulalongkorn University (CU)
> >
> > *Phone: +66 81 456 84 27*
> >
>
>
--
Mr. Chanthan Hel
Electrical engineering, Faculty of Engineering,
Chulalongkorn University (CU)
*Phone: +66 81 456 84 27*
