"""

Author Hans Fredrik Skappel, 2015, NTNU

A simple POX controller application used to gather different parameters from the network topology.

"""

from pox.core import core

import pox.openflow.libopenflow_01 as of

from pox.lib.recoco import Timer

nodes = []

def _handle_ConnectionUp(event):

nodes.append(event)

print "Switch discovered with DIPID: ", event.connection.dpid

def _handle_linkevent(event):

link_list = core.openflow_discovery.adjacency

print "Link discovered: ", event.link

def _handle_features(event):

print event.connection.features.datapath_id, event.connection.features.n_buffers, event.connection.features.n_tables, event.connection.features.capabilities, event.connection.features.actions

for m in event.connection.features.ports:

print "Features: ", m.name,m.port_no,m.hw_addr,m.curr,m.advertised,m.supported,m.peer,m.config,m.state

def _handle_portstats(event):

for f in event.stats:

print "Switch: ", event.connection.dpid, " PortNo:", f.port_no, " Fwd's Pkts:", f.tx_packets, " Rc'd Pkts:", f.rx_packets

def _handle_flowstats(event):

print "FLOWSTATUS: Switch: ", event.connection.dpid, " Port: ", o.port, "Packet count: ", n.packet_count

def _handle_aggregate(event):

print "Total counts for switch:", event.dpid, " Packet count: ", event.stats.packet_count, " Byte count: ", event.stats.byte_count, "Flow count: ", event.stats.flow_count

def _on_timer():

n.connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))

def launch():

Timer(10, _on_timer, recurring=True)