switch.py

"""
[555 Comments]
Your switch code and any other helper functions related to switch should be written in this file
"""
from pox.core import core
import pox.openflow.libopenflow_01 as of
from pox.lib.packet.arp import arp
from pox.lib.packet.ethernet import *
from pox.lib.addresses import *
from pox.lib.packet.icmp import *
from pox.lib.packet.ipv4 import *

log = core.getLogger()

"""
[555 Comments]
  Function : switch_handler
  Input Parameters:
      sw_object : The switch object. This will be initialized in the controller file corresponding to the scenario in __init__
                  function of tutorial class. Any data structures you would like to use for a switch should be initialized
                  in the contoller file corresponding to the scenario.
      packet    : The packet that is received from the packet forwarding switch.
      packet_in : The packet_in object that is received from the packet forwarding switch
"""
def switch_handler(sw_object, packet, packet_in):