diff --git a/src/test/utils/Channels.py b/src/test/utils/Channels.py
new file mode 100644
index 0000000..90d4f3c
--- /dev/null
+++ b/src/test/utils/Channels.py
@@ -0,0 +1,221 @@
+import threading
+import sys
+import os
+import time
+import monotonic
+import random
+from scapy.all import *
+from McastTraffic import *
+from IGMP import *
+from OnosCtrl import OnosCtrl
+from nose.tools import *
+log.setLevel('DEBUG')
+
+conf.verb = 0
+
+class IgmpChannel:
+
+    IGMP_DST_MAC = "01:00:5e:00:01:01"
+    IGMP_SRC_MAC = "5a:e1:ac:ec:4d:a1"
+    IP_SRC = '1.2.3.4'
+    IP_DST = '224.0.1.1'
+    igmp_eth = Ether(dst = IGMP_DST_MAC, src = IGMP_SRC_MAC, type = ETH_P_IP)
+    igmp_ip = IP(dst = IP_DST, src = IP_SRC)
+
+    def __init__(self, iface = 'veth0', src_list = ['1.2.3.4'], delay = 2):
+        self.iface = iface
+        self.src_list = src_list
+        self.delay = delay
+        self.onos_ctrl = OnosCtrl('org.onosproject.igmp')
+        self.onos_ctrl.activate()
+
+    def igmp_join(self, groups):
+        self.ssm_table_load(groups)
+        igmp = IGMPv3(type = IGMP_TYPE_V3_MEMBERSHIP_REPORT, max_resp_code=30,
+                      gaddr='224.0.1.1')
+        for g in groups:
+              gr = IGMPv3gr(rtype=IGMP_V3_GR_TYPE_EXCLUDE, mcaddr=g)
+              gr.sources = self.src_list
+              igmp.grps.append(gr)
+
+        pkt = self.igmp_eth/self.igmp_ip/igmp
+        IGMPv3.fixup(pkt)
+        sendp(pkt, iface=self.iface)
+        if self.delay != 0:
+            time.sleep(self.delay)
+
+    def igmp_leave(self, groups):
+        igmp = IGMPv3(type = IGMP_TYPE_V3_MEMBERSHIP_REPORT, max_resp_code=30,
+                      gaddr='224.0.1.1')
+        for g in groups:
+              gr = IGMPv3gr(rtype=IGMP_V3_GR_TYPE_INCLUDE, mcaddr=g)
+              gr.sources = self.src_list
+              igmp.grps.append(gr)
+
+        pkt = self.igmp_eth/self.igmp_ip/igmp
+        IGMPv3.fixup(pkt)
+        sendp(pkt, iface = self.iface)
+        if self.delay != 0:
+            time.sleep(self.delay)
+
+    def onos_load_config(self, config):
+        status, code = self.onos_ctrl.config(config)
+        if status is False:
+            log.info('JSON config request for app %s returned status %d' %code)
+        time.sleep(2)
+
+    def ssm_table_load(self, groups):
+          ssm_dict = {'apps' : { 'org.onosproject.igmp' : { 'ssmTranslate' : [] } } }
+          ssm_xlate_list = ssm_dict['apps']['org.onosproject.igmp']['ssmTranslate']
+          for g in groups:
+                for s in self.src_list:
+                      d = {}
+                      d['source'] = s
+                      d['group'] = g
+                      ssm_xlate_list.append(d)
+          self.onos_load_config(ssm_dict)
+
+class Channels(IgmpChannel):
+    Stopped = 0
+    Started = 1
+    Idle = 0
+    Joined = 1
+    def __init__(self, num, iface = 'veth0', iface_mcast = 'veth2', mcast_cb = None):
+        self.num = num
+        self.channels = self.generate(self.num)
+        self.state = self.Stopped
+        self.streams = None
+        self.channel_states = {}
+        self.last_chan = None
+        self.recv_sock = L2Socket(iface = iface, type = ETH_P_IP)
+        self.iface_mcast = iface_mcast
+        self.mcast_cb = mcast_cb
+        for c in range(self.num):
+            self.channel_states[c] = [self.Idle]
+
+        IgmpChannel.__init__(self, iface=iface)
+
+    def generate(self, num):
+        start = (224 << 24) | 1
+        end = start + num + num/256 
+        group_addrs = []
+        for i in range(start, end):
+            if i&255:
+                g = '%s.%s.%s.%s' %((i>>24) &0xff, (i>>16)&0xff, (i>>8)&0xff, i&0xff)
+                log.debug('Adding group %s' %g)
+                group_addrs.append(g)
+        return group_addrs
+
+    def start(self):
+        if self.state == self.Stopped:
+            if self.streams:
+                self.streams.stop()
+            self.streams = McastTraffic(self.channels, iface=self.iface_mcast, cb = self.mcast_cb)
+            self.streams.start()
+            self.state = self.Started
+
+    def join(self, chan = None):
+        if chan is None:
+            chan = random.randint(0, self.num)
+        else:
+            if chan >= self.num:
+                chan = 0
+
+        if self.get_state(chan) == self.Joined:
+            return chan
+
+        groups = [self.channels[chan]]
+        self.igmp_join(groups)
+        self.set_state(chan, self.Joined)
+        self.last_chan = chan
+        return chan
+
+    def leave(self, chan):
+        if chan is None:
+            chan = self.last_chan
+        if chan is None or chan >= self.num:
+            return False
+        if self.get_state(chan) != self.Joined:
+            return False
+        groups = [self.channels[chan]]
+        self.igmp_leave(groups)
+        self.set_state(chan, self.Idle)
+        if chan == self.last_chan:
+            self.last_chan = None
+        return True
+    
+    def join_next(self, chan = None):
+        if chan is None:
+            chan = self.last_chan
+            if chan is None:
+                return None
+            leave = chan
+            join = chan+1
+        else:
+            leave = chan - 1
+            join = chan
+        
+        if join >= self.num:
+            join = 0
+
+        if leave >= 0 and leave != join:
+            self.leave(leave)
+
+        return self.join(join)
+
+    def jump(self):
+        chan = self.last_chan
+        if chan is not None:
+            self.leave(chan)
+            s_next = chan
+        else:
+            s_next = 0
+        chan = random.randint(s_next, self.num)
+        return self.join(chan)
+
+    def gaddr(self, chan):
+        if chan >= self.num:
+            return None
+        return self.channels[chan]
+
+    def recv_cb(self, pkt):
+        '''Default channel receive callback'''
+        log.debug('Received packet from source %s, destination %s' %(pkt[IP].src, pkt[IP].dst))
+        send_time = float(pkt[IP].payload.load)
+        recv_time = monotonic.monotonic()
+        log.debug('Packet received in %.3f usecs' %(recv_time - send_time))
+
+    def recv(self, chan, cb = None, count = 1):
+        if chan is None:
+            return None
+        if type(chan) == type([]) or type(chan) == type(()):
+            channel_list=filter(lambda c: c < self.num, chan)
+            groups = map(lambda c: self.gaddr(c), channel_list)
+        else:
+            groups = (self.gaddr(chan),)
+        if cb is None:
+            cb = self.recv_cb
+        sniff(prn = cb, count=count, lfilter = lambda p: p[IP].dst in groups, opened_socket = self.recv_sock)
+
+    def stop(self):
+        if self.streams:
+            self.streams.stop()
+        self.state = self.Stopped
+
+    def get_state(self, chan):
+        return self.channel_states[chan][0]
+
+    def set_state(self, chan, state):
+        self.channel_states[chan][0] = state
+
+if __name__ == '__main__':
+    num = 2
+    channels = Channels(num)
+    channels.start()
+    for i in range(num):
+        channels.join(i)
+    for i in range(num):
+        channels.recv(i)
+    for i in range(num):
+        channels.leave(i)
+    channels.stop()