[pox-dev] POX disconnected to OpenFlow switch

[Hong Wayne]

Sorry about that.

POX command line:
./pox.py forwarding.l2_learning openflow.of_01 --address=ip_address
--port=6633 samples.pretty_log log.level --packet=WARN myself_module
--interval=2

POX version: betta

OF switch: Open vSwitch 1.9

And the code in myself_module is done the things that execute algorithm and
update database(Written in _handle_timer_temp callback function) which cost
about ten seconds and myself_module will be triggered by
_handle_ConnectionUp like below:

class temp_class (object):

  def __init__ (self, interval):

    core.openflow.addListeners(self)
    self.interval = interval
    db = MySQLdb.connect(host="", user="", passwd="", db="")
    cursor = db.cursor()#Create instance to access DB
    cursor.execute("SELECT dpid, Dead, Maskbit, c_subnet_start,
c_subnet_end, Load_balancing_algorithm  FROM Pica8_Switch_Info ")
    self.return_nu_rows = cursor.rowcount
    self.return_switch_info = cursor.fetchall()
    db.close()

  def _handle_ConnectionUp (self, event):

    log.debug("Default Connection %s" % (event.connection,))

    Timer(float(self.interval), _handle_timer_temp, recurring=False,
args=(core.openflow, self.return_nu_rows, self.return_switch_info))


def launch (interval): #User parameters
  """
  Starts modules
  """
  core.registerNew( Wayne_class, interval)




2013/7/24 Murphy McCauley <murphy.mccauley at gmail.com>

> I don't think you've provided enough information for an explanation to be
> offered.
>
> Please see the final question on the POX wiki's FAQ for guidance to help
> us help you.
>
> -- Murphy
>
> On Jul 23, 2013, at 9:23 PM, Hong Wayne wrote:
>
> > Dear all:
> >
> >
> > I faced a problem when OpenFlow switch connect to POX and some module I
> modified triggered at this time(ConnectionUp event) and cost some times.
> >
> > When this module was executed completely, the POX command line appear
> the messages like below:
> >
> > [openflow.of_01] already disconnected!
> > [openflow.of_01] closed connection
> > [openflow.of_01] disconnected
> >
> > So I want to ask why these error message happened? Whether POX run some
> module I didn't notice?
> >
> > Thanks for helping.
>
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