diff --git a/src/test/dhcprelay/dhcprelayTest.py b/src/test/dhcprelay/dhcprelayTest.py
index 2cfb4be..20d3097 100644
--- a/src/test/dhcprelay/dhcprelayTest.py
+++ b/src/test/dhcprelay/dhcprelayTest.py
@@ -17,11 +17,10 @@
 from nose.tools import *
 from nose.twistedtools import reactor, deferred
 from twisted.internet import defer
-from scapy.all import *
 import time
 import os, sys
 from DHCP import DHCPTest
-from CordTestUtils import get_mac
+from CordTestUtils import get_mac, log_test
 from OnosCtrl import OnosCtrl
 from OltConfig import OltConfig
 from CordTestServer import cord_test_onos_restart
@@ -29,7 +28,7 @@
 from portmaps import g_subscriber_port_map
 import threading, random
 from threading import current_thread
-log.setLevel('INFO')
+log_test.setLevel('INFO')
 
 class dhcprelay_exchange(CordLogger):
 
@@ -136,14 +135,14 @@
         for config in cls.configs.items():
             OnosCtrl.delete(config)
         # if cls.onos_restartable is True:
-        #     log.info('Cleaning up dhcp relay config by restarting ONOS with default network cfg')
+        #     log_test.info('Cleaning up dhcp relay config by restarting ONOS with default network cfg')
         #     return cord_test_onos_restart(config = {})
 
     @classmethod
     def onos_load_config(cls, config):
         status, code = OnosCtrl.config(config)
         if status is False:
-            log.info('JSON request returned status %d' %code)
+            log_test.info('JSON request returned status %d' %code)
             assert_equal(status, True)
         time.sleep(3)
 
@@ -246,7 +245,7 @@
 
         intf_str = ','.join(intf_list)
         dhcpd_cmd = '/usr/sbin/dhcpd -4 --no-pid -cf {0} -lf {1} {2}'.format(conf_file, lease_file, intf_str)
-        log.info('Starting DHCPD server with command: %s' %dhcpd_cmd)
+        log_test.info('Starting DHCPD server with command: %s' %dhcpd_cmd)
         ret = os.system(dhcpd_cmd)
         assert_equal(ret, 0)
         time.sleep(3)
@@ -297,7 +296,7 @@
 
 	    if only_discover:
 		cip, sip, mac, _ = self.dhcp.only_discover(multiple = True)
-                log.info('Got dhcp client IP %s from server %s for mac %s' %
+                log_test.info('Got dhcp client IP %s from server %s for mac %s' %
                         (cip, sip, mac))
 	    else:
 	        cip, sip = self.send_recv(mac=mac, update_seed = True, validate = False)
@@ -306,7 +305,7 @@
                 self.ip_count +=1
 	    elif cip == None:
 		self.failure_count += 1
-                log.info('Failed to get ip')
+                log_test.info('Failed to get ip')
 		if success_rate and self.ip_count > 0:
 			break
 
@@ -323,7 +322,7 @@
         if validate:
             assert_not_equal(cip, None)
             assert_not_equal(sip, None)
-        log.info('Got dhcp client IP %s from server %s for mac %s' %
+        log_test.info('Got dhcp client IP %s from server %s for mac %s' %
                 (cip, sip, self.dhcp.get_mac(cip)[0]))
         return cip,sip
 
@@ -359,7 +358,7 @@
         self.dhcp = DHCPTest(seed_ip = '10.10.10.1', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover(mac='ff:ff:ff:ff:ff:ff')
         assert_equal(cip,None)
-	log.info('dhcp server rejected client discover with invalid source mac, as expected')
+	log_test.info('dhcp server rejected client discover with invalid source mac, as expected')
 
     def test_dhcpRelay_1request_with_invalid_source_mac_multicast(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -377,7 +376,7 @@
         self.dhcp = DHCPTest(seed_ip = '10.10.10.1', iface = iface)
         cip, sip, mac, _ = self.dhcp.only_discover(mac='01:80:c2:01:98:05')
         assert_equal(cip,None)
-	log.info('dhcp server rejected client discover with invalid source mac, as expected')
+	log_test.info('dhcp server rejected client discover with invalid source mac, as expected')
 
     def test_dhcpRelay_1request_with_invalid_source_mac_zero(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -395,7 +394,7 @@
         self.dhcp = DHCPTest(seed_ip = '10.10.10.1', iface = iface)
         cip, sip, mac, _ = self.dhcp.only_discover(mac='00:00:00:00:00:00')
         assert_equal(cip,None)
-        log.info('dhcp server rejected client discover with invalid source mac, as expected')
+        log_test.info('dhcp server rejected client discover with invalid source mac, as expected')
 
     def test_dhcpRelay_Nrequest(self, iface = 'veth0',requests=10):
         mac = self.get_mac(iface)
@@ -414,10 +413,10 @@
         ip_map = {}
         for i in range(requests):
             #mac = RandMAC()._fix()
-	    #log.info('mac is %s'%mac)
+	    #log_test.info('mac is %s'%mac)
             cip, sip = self.send_recv(update_seed = True)
             if ip_map.has_key(cip):
-                log.info('IP %s given out multiple times' %cip)
+                log_test.info('IP %s given out multiple times' %cip)
                 assert_equal(False, ip_map.has_key(cip))
             ip_map[cip] = sip
 	    time.sleep(1)
@@ -437,13 +436,13 @@
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '10.10.100.10', iface = iface)
         cip, sip = self.send_recv(mac=mac)
-        log.info('Releasing ip %s to server %s' %(cip, sip))
+        log_test.info('Releasing ip %s to server %s' %(cip, sip))
         assert_equal(self.dhcp.release(cip), True)
-        log.info('Triggering DHCP discover again after release')
+        log_test.info('Triggering DHCP discover again after release')
         cip2, sip2 = self.send_recv(mac=mac)
-        log.info('Verifying released IP was given back on rediscover')
+        log_test.info('Verifying released IP was given back on rediscover')
         assert_equal(cip, cip2)
-        log.info('Test done. Releasing ip %s to server %s' %(cip2, sip2))
+        log_test.info('Test done. Releasing ip %s to server %s' %(cip2, sip2))
         assert_equal(self.dhcp.release(cip2), True)
 
     def test_dhcpRelay_Nrelease(self, iface = 'veth0'):
@@ -464,25 +463,25 @@
         for i in range(10):
             cip, sip = self.send_recv(mac=mac, update_seed = True)
             if ip_map.has_key(cip):
-                log.info('IP %s given out multiple times' %cip)
+                log_test.info('IP %s given out multiple times' %cip)
                 assert_equal(False, ip_map.has_key(cip))
             ip_map[cip] = sip
 
         for ip in ip_map.keys():
-            log.info('Releasing IP %s' %ip)
+            log_test.info('Releasing IP %s' %ip)
             assert_equal(self.dhcp.release(ip), True)
 
         ip_map2 = {}
-        log.info('Triggering DHCP discover again after release')
+        log_test.info('Triggering DHCP discover again after release')
         self.dhcp = DHCPTest(seed_ip = '192.170.1.10', iface = iface)
         for i in range(len(ip_map.keys())):
             cip, sip = self.send_recv(mac=mac, update_seed = True)
             ip_map2[cip] = sip
 
-        log.info('Verifying released IPs were given back on rediscover')
+        log_test.info('Verifying released IPs were given back on rediscover')
         if ip_map != ip_map2:
-            log.info('Map before release %s' %ip_map)
-            log.info('Map after release %s' %ip_map2)
+            log_test.info('Map before release %s' %ip_map)
+            log_test.info('Map after release %s' %ip_map2)
         assert_equal(ip_map, ip_map2)
 
     def test_dhcpRelay_starvation(self, iface = 'veth0'):
@@ -499,7 +498,7 @@
                          options = options,
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '182.17.0.1', iface = iface)
-        log.info('Verifying 1 ')
+        log_test.info('Verifying 1 ')
 	count = 0
         while True:
             #mac = RandMAC()._fix()
@@ -509,7 +508,7 @@
 	    else:
 		count += 1
 	assert_equal(count,91)
-        log.info('Verifying 2 ')
+        log_test.info('Verifying 2 ')
         cip, sip = self.send_recv(mac=mac, update_seed = True, validate = False)
         assert_equal(cip, None)
         assert_equal(sip, None)
@@ -529,13 +528,13 @@
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '10.10.10.1', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s . Not going to send DHCPREQUEST.' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s . Not going to send DHCPREQUEST.' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip, None)
-	log.info('Triggering DHCP discover again.')
+	log_test.info('Triggering DHCP discover again.')
 	new_cip, new_sip, new_mac, _ = self.dhcp.only_discover()
 	assert_equal(new_cip, cip)
-	log.info('got same ip to smae the client when sent discover again, as expected')
+	log_test.info('got same ip to smae the client when sent discover again, as expected')
 
     def test_dhcpRelay_same_client_multiple_request(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -551,13 +550,13 @@
                          options = options,
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '10.10.10.1', iface = iface)
-	log.info('Sending DHCP discover and DHCP request.')
+	log_test.info('Sending DHCP discover and DHCP request.')
 	cip, sip = self.send_recv(mac=mac)
 	mac = self.dhcp.get_mac(cip)[0]
-	log.info("Sending DHCP request again.")
+	log_test.info("Sending DHCP request again.")
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
 	assert_equal(new_cip, cip)
-	log.info('got same ip to smae the client when sent request again, as expected')
+	log_test.info('got same ip to smae the client when sent request again, as expected')
 
     def test_dhcpRelay_client_desired_address(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -575,7 +574,7 @@
         self.dhcp = DHCPTest(seed_ip = '192.168.1.31', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover(desired = True)
 	assert_equal(cip,self.dhcp.seed_ip)
-	log.info('Got dhcp client desired IP %s from server %s for mac %s as expected' %
+	log_test.info('Got dhcp client desired IP %s from server %s for mac %s as expected' %
 		  (cip, sip, mac) )
 
     def test_dhcpRelay_client_desired_address_out_of_pool(self, iface = 'veth0'):
@@ -596,7 +595,7 @@
 	cip, sip, mac, _ = self.dhcp.only_discover(desired = True)
 	assert_not_equal(cip,None)
 	assert_not_equal(cip,self.dhcp.seed_ip)
-	log.info('server offered IP from its pool when requested out of pool IP, as expected')
+	log_test.info('server offered IP from its pool when requested out of pool IP, as expected')
 
     def test_dhcpRelay_nak_packet(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -613,12 +612,12 @@
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '10.10.10.1', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip, None)
 	new_cip, new_sip = self.dhcp.only_request('20.20.20.31', mac)
 	assert_equal(new_cip, None)
-	log.info('server sent NAK packet when requested other IP than that server offered')
+	log_test.info('server sent NAK packet when requested other IP than that server offered')
 
 
     def test_dhcpRelay_client_requests_specific_lease_time_in_discover(self, iface = 'veth0',lease_time=700):
@@ -638,7 +637,7 @@
 	self.dhcp.return_option = 'lease'
 	cip, sip, mac, lval = self.dhcp.only_discover(lease_time=True,lease_value=lease_time)
 	assert_equal(lval, lease_time)
-	log.info('dhcp server offered IP address with client requested lease time')
+	log_test.info('dhcp server offered IP address with client requested lease time')
 
     def test_dhcpRelay_client_request_after_reboot(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -655,17 +654,17 @@
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip, None)
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
-	log.info('client rebooting...')
+	log_test.info('client rebooting...')
 	os.system('ifconfig '+iface+' down')
 	time.sleep(5)
 	os.system('ifconfig '+iface+' up')
 	new_cip2, new_sip = self.dhcp.only_request(cip, mac, cl_reboot = True)
 	assert_equal(new_cip2, cip)
-	log.info('client got same IP after reboot, as expected')
+	log_test.info('client got same IP after reboot, as expected')
 
 
     def test_dhcpRelay_after_server_reboot(self, iface = 'veth0'):
@@ -683,18 +682,18 @@
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip, None)
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
-	log.info('server rebooting...')
+	log_test.info('server rebooting...')
 	self.tearDownClass()
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
 	assert_equal(new_cip,None)
 	self.setUpClass()
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
 	assert_equal(new_cip, cip)
-	log.info('client got same IP after server rebooted, as expected')
+	log_test.info('client got same IP after server rebooted, as expected')
 
 
     def test_dhcpRelay_specific_lease_time_only_in_discover_but_not_in_request_packet(self, iface = 'veth0',lease_time=700):
@@ -712,13 +711,13 @@
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 	self.dhcp.return_option = 'lease'
-	log.info('Sending DHCP discover with lease time of 700')
+	log_test.info('Sending DHCP discover with lease time of 700')
 	cip, sip, mac, lval = self.dhcp.only_discover(lease_time = True, lease_value=lease_time)
 	assert_equal(lval,lease_time)
 	new_cip, new_sip, lval = self.dhcp.only_request(cip, mac, lease_time = True)
 	assert_equal(new_cip,cip)
 	assert_not_equal(lval, lease_time) #Negative Test Case
-	log.info('client requested lease time in discover packer is not seen in server ACK packet as expected')
+	log_test.info('client requested lease time in discover packer is not seen in server ACK packet as expected')
 
     def test_dhcpRelay_specific_lease_time_only_in_request_but_not_in_discover_packet(self, iface = 'veth0',lease_time=800):
         mac = self.get_mac(iface)
@@ -738,7 +737,7 @@
 	new_cip, new_sip, lval = self.dhcp.only_request(cip, mac, lease_time = True,lease_value=lease_time)
 	assert_equal(new_cip,cip)
 	assert_equal(lval, lease_time)
-	log.info('client requested lease time in request packet seen in servre replied ACK packet as expected')
+	log_test.info('client requested lease time in request packet seen in servre replied ACK packet as expected')
 
     def test_dhcpRelay_client_renew_time(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -756,15 +755,15 @@
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip,None)
 	new_cip, new_sip, lval = self.dhcp.only_request(cip, mac, renew_time = True)
-	log.info('waiting for  renew  time..')
+	log_test.info('waiting for  renew  time..')
 	time.sleep(lval)
 	latest_cip, latest_sip = self.dhcp.only_request(new_cip, mac, unicast = True)
 	assert_equal(latest_cip, cip)
-	log.info('server renewed client IP when client sends request after renew time, as expected')
+	log_test.info('server renewed client IP when client sends request after renew time, as expected')
 
 
     def test_dhcpRelay_client_rebind_time(self, iface = 'veth0'):
@@ -783,15 +782,15 @@
                          subnet = subnet)
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip,None)
 	new_cip, new_sip, lval = self.dhcp.only_request(cip, mac, rebind_time = True)
-	log.info('waiting for  rebind  time..')
+	log_test.info('waiting for  rebind  time..')
 	time.sleep(lval)
 	latest_cip, latest_sip = self.dhcp.only_request(new_cip, mac)
 	assert_equal(latest_cip, cip)
-        log.info('server renewed client IP when client sends request after rebind time, as expected')
+        log_test.info('server renewed client IP when client sends request after rebind time, as expected')
 
 
     def test_dhcpRelay_client_expected_subnet_mask(self, iface = 'veth0'):
@@ -812,10 +811,10 @@
 	self.dhcp.return_option = 'subnet'
 
 	cip, sip, mac, subnet_mask = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_equal(subnet_mask,expected_subnet)
-	log.info('subnet mask in server offer packet is same as configured subnet mask in dhcp server')
+	log_test.info('subnet mask in server offer packet is same as configured subnet mask in dhcp server')
 
 
     def test_dhcpRelay_client_sends_dhcp_request_with_wrong_subnet_mask(self, iface = 'veth0'):
@@ -834,13 +833,13 @@
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip,None)
 	self.dhcp.send_different_option = 'subnet'
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
 	assert_equal(new_cip, cip)
-	log.info("Got DHCP Ack despite of specifying wrong Subnet Mask in DHCP Request.")
+	log_test.info("Got DHCP Ack despite of specifying wrong Subnet Mask in DHCP Request.")
 
 
     def test_dhcpRelay_client_expected_router_address(self, iface = 'veth0'):
@@ -863,10 +862,10 @@
 	self.dhcp.return_option = 'router'
 
 	cip, sip, mac, router_address_value = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_equal(expected_router_address, router_address_value)
-	log.info('router address in server offer packet is same as configured router address in dhcp server')
+	log_test.info('router address in server offer packet is same as configured router address in dhcp server')
 
 
     def test_dhcpRelay_client_sends_dhcp_request_with_wrong_router_address(self, iface = 'veth0'):
@@ -885,13 +884,13 @@
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip,None)
 	self.dhcp.send_different_option = 'router'
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
 	assert_equal(new_cip, cip)
-	log.info("Got DHCP Ack despite of specifying wrong Router Address in DHCP Request.")
+	log_test.info("Got DHCP Ack despite of specifying wrong Router Address in DHCP Request.")
 
 
     def test_dhcpRelay_client_expected_broadcast_address(self, iface = 'veth0'):
@@ -912,10 +911,10 @@
 	self.dhcp.return_option = 'broadcast_address'
 
 	cip, sip, mac, broadcast_address_value = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_equal(expected_broadcast_address, broadcast_address_value)
-	log.info('broadcast address in server offer packet is same as configured broadcast address in dhcp server')
+	log_test.info('broadcast address in server offer packet is same as configured broadcast address in dhcp server')
 
     def test_dhcpRelay_client_sends_dhcp_request_with_wrong_broadcast_address(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -933,13 +932,13 @@
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip,None)
 	self.dhcp.send_different_option = 'broadcast_address'
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
 	assert_equal(new_cip, cip)
-	log.info("Got DHCP Ack despite of specifying wrong Broadcast Address in DHCP Request.")
+	log_test.info("Got DHCP Ack despite of specifying wrong Broadcast Address in DHCP Request.")
 
 
     def test_dhcpRelay_client_expected_dns_address(self, iface = 'veth0'):
@@ -960,10 +959,10 @@
 	self.dhcp.return_option = 'dns'
 
 	cip, sip, mac, dns_address_value = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_equal(expected_dns_address, dns_address_value)
-	log.info('dns address in server offer packet is same as configured dns address in dhcp server')
+	log_test.info('dns address in server offer packet is same as configured dns address in dhcp server')
 
     def test_dhcpRelay_client_sends_request_with_wrong_dns_address(self, iface = 'veth0'):
         mac = self.get_mac(iface)
@@ -981,100 +980,100 @@
         self.dhcp = DHCPTest(seed_ip = '20.20.20.45', iface = iface)
 
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s .' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s .' %
 		  (cip, sip, mac) )
 	assert_not_equal(cip,None)
 	self.dhcp.send_different_option = 'dns'
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
 	assert_equal(new_cip, cip)
-	log.info("Got DHCP Ack despite of specifying wrong DNS Address in DHCP Request.")
+	log_test.info("Got DHCP Ack despite of specifying wrong DNS Address in DHCP Request.")
 
 
     def test_dhcpRelay_transactions_per_second(self, iface = 'veth0'):
 
 	for i in range(1,4):
 	    self.stats()
-	    log.info("Statistics for run %d",i)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of transactions     No. of successes     No. of failures     Running Time ")
-	    log.info("    %d                    %d                     %d                  %d" %(self.ip_count+self.failure_count, 		               self.ip_count, self.failure_count, self.diff))
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of transactions per second in run %d:%f" %(i, self.transaction_count))
+	    log_test.info("Statistics for run %d",i)
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of transactions     No. of successes     No. of failures     Running Time ")
+	    log_test.info("    %d                    %d                     %d                  %d" %(self.ip_count+self.failure_count, 		               self.ip_count, self.failure_count, self.diff))
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of transactions per second in run %d:%f" %(i, self.transaction_count))
 
-	log.info("Final Statistics for total transactions")
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Total transactions     Total No. of successes     Total No. of failures     Running Time ")
-	log.info("    %d                     %d                         %d                        %d" %(self.transactions,
+	log_test.info("Final Statistics for total transactions")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Total transactions     Total No. of successes     Total No. of failures     Running Time ")
+	log_test.info("    %d                     %d                         %d                        %d" %(self.transactions,
                  self.total_success, self.total_failure, self.running_time))
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Average no. of transactions per second: %d", round(self.transactions/self.running_time,0))
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Average no. of transactions per second: %d", round(self.transactions/self.running_time,0))
 
     def test_dhcpRelay_consecutive_successes_per_second(self, iface = 'veth0'):
 
 	for i in range(1,4):
 	    self.stats(success_rate = True)
-	    log.info("Statistics for run %d",i)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of consecutive successful transactions          Running Time ")
-	    log.info("                   %d                                   %d        " %(self.ip_count, self.diff))
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of successful transactions per second in run %d:%f" %(i, self.transaction_count))
-	    log.info("----------------------------------------------------------------------------------")
+	    log_test.info("Statistics for run %d",i)
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of consecutive successful transactions          Running Time ")
+	    log_test.info("                   %d                                   %d        " %(self.ip_count, self.diff))
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of successful transactions per second in run %d:%f" %(i, self.transaction_count))
+	    log_test.info("----------------------------------------------------------------------------------")
 
-	log.info("Final Statistics for total successful transactions")
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Total transactions     Total No. of consecutive successes         Running Time ")
-	log.info("    %d                                 %d                             %d        " %(self.transactions,
+	log_test.info("Final Statistics for total successful transactions")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Total transactions     Total No. of consecutive successes         Running Time ")
+	log_test.info("    %d                                 %d                             %d        " %(self.transactions,
                  self.total_success, self.running_time))
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Average no. of consecutive successful transactions per second: %d", round(self.total_success/self.running_time,0))
-	log.info("----------------------------------------------------------------------------------")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Average no. of consecutive successful transactions per second: %d", round(self.total_success/self.running_time,0))
+	log_test.info("----------------------------------------------------------------------------------")
 
 
     def test_dhcpRelay_clients_per_second(self, iface = 'veth0'):
 
 	for i in range(1,4):
 	    self.stats(only_discover = True)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("Statistics for run %d of sending only DHCP Discover",i)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of transactions     No. of successes     No. of failures     Running Time ")
-	    log.info("    %d                    %d                     %d                  %d" %(self.ip_count+self.failure_count, 		               self.ip_count, self.failure_count, self.diff))
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of clients per second in run %d:%f                                      "
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("Statistics for run %d of sending only DHCP Discover",i)
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of transactions     No. of successes     No. of failures     Running Time ")
+	    log_test.info("    %d                    %d                     %d                  %d" %(self.ip_count+self.failure_count, 		               self.ip_count, self.failure_count, self.diff))
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of clients per second in run %d:%f                                      "
 		    %(i, self.transaction_count))
-	    log.info("----------------------------------------------------------------------------------")
-	log.info("Final Statistics for total transactions of sending only DHCP Discover")
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Total transactions     Total No. of successes     Total No. of failures     Running Time ")
-	log.info("    %d                     %d                         %d                        %d" %(self.transactions,
+	    log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Final Statistics for total transactions of sending only DHCP Discover")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Total transactions     Total No. of successes     Total No. of failures     Running Time ")
+	log_test.info("    %d                     %d                         %d                        %d" %(self.transactions,
                  self.total_success, self.total_failure, self.running_time))
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Average no. of clients per second: %d                                        ",
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Average no. of clients per second: %d                                        ",
 		round(self.transactions/self.running_time,0))
-	log.info("----------------------------------------------------------------------------------")
+	log_test.info("----------------------------------------------------------------------------------")
 
     def test_dhcpRelay_consecutive_successful_clients_per_second(self, iface = 'veth0'):
 
 	for i in range(1,4):
 	    self.stats(success_rate = True, only_discover = True)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("Statistics for run %d for sending only DHCP Discover",i)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of consecutive successful transactions          Running Time ")
-	    log.info("                   %d                                   %d        " %(self.ip_count, self.diff))
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of consecutive successful clients per second in run %d:%f" %(i, self.transaction_count))
-	    log.info("----------------------------------------------------------------------------------")
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("Statistics for run %d for sending only DHCP Discover",i)
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of consecutive successful transactions          Running Time ")
+	    log_test.info("                   %d                                   %d        " %(self.ip_count, self.diff))
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of consecutive successful clients per second in run %d:%f" %(i, self.transaction_count))
+	    log_test.info("----------------------------------------------------------------------------------")
 
-	log.info("Final Statistics for total successful transactions")
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Total transactions     Total No. of consecutive successes         Running Time ")
-	log.info("    %d                                 %d                             %d        " %(self.transactions,
+	log_test.info("Final Statistics for total successful transactions")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Total transactions     Total No. of consecutive successes         Running Time ")
+	log_test.info("    %d                                 %d                             %d        " %(self.transactions,
                  self.total_success, self.running_time))
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Average no. of consecutive successful clients per second: %d", round(self.total_success/self.running_time,0))
-	log.info("----------------------------------------------------------------------------------")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Average no. of consecutive successful clients per second: %d", round(self.total_success/self.running_time,0))
+	log_test.info("----------------------------------------------------------------------------------")
 
     def test_dhcpRelay_concurrent_transactions_per_second(self, iface = 'veth0'):
 
@@ -1099,7 +1098,7 @@
 	def thread_fun(i):
 	    mac = self.get_mac('veth{}'.format(i))
 	    cip, sip = DHCPTest(iface = 'veth{}'.format(i)).discover(mac = mac)
-	    log.info('Got dhcp client IP %s from server %s for mac %s'%(cip, sip, mac))
+	    log_test.info('Got dhcp client IP %s from server %s for mac %s'%(cip, sip, mac))
 	    self.lock.acquire()
 
 	    if cip:
@@ -1151,26 +1150,26 @@
 	    self.total_failure += self.failure_count
 
 
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("Statistics for run %d",i)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of transactions     No. of successes     No. of failures     Running Time ")
-	    log.info("    %d                    %d                     %d                  %d"
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("Statistics for run %d",i)
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of transactions     No. of successes     No. of failures     Running Time ")
+	    log_test.info("    %d                    %d                     %d                  %d"
 			    %(self.ip_count+self.failure_count,self.ip_count, self.failure_count, self.diff))
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of transactions per second in run %d:%f" %(i, self.transaction_count))
-	    log.info("----------------------------------------------------------------------------------")
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of transactions per second in run %d:%f" %(i, self.transaction_count))
+	    log_test.info("----------------------------------------------------------------------------------")
 
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Final Statistics for total transactions")
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Total transactions     Total No. of successes     Total No. of failures     Running Time ")
-	log.info("    %d                     %d                         %d                        %d" %(self.transactions,
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Final Statistics for total transactions")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Total transactions     Total No. of successes     Total No. of failures     Running Time ")
+	log_test.info("    %d                     %d                         %d                        %d" %(self.transactions,
                  self.total_success, self.total_failure, self.running_time))
 
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Average no. of transactions per second: %d", round(self.transactions/self.running_time,0))
-	log.info("----------------------------------------------------------------------------------")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Average no. of transactions per second: %d", round(self.transactions/self.running_time,0))
+	log_test.info("----------------------------------------------------------------------------------")
 
     def test_dhcpRelay_concurrent_consecutive_successes_per_second(self, iface = 'veth0'):
 
@@ -1194,13 +1193,13 @@
 	    self.host_load(g_subscriber_port_map[key])
 
 	def thread_fun(i, j):
-#		log.info("Thread Name:%s",current_thread().name)
+#		log_test.info("Thread Name:%s",current_thread().name)
 #		failure_dir[current_thread().name] = True
 	    while failure_dir.has_key(current_thread().name) is False:
 		  mac = RandMAC()._fix()
 		  cip, sip = DHCPTest(iface = 'veth{}'.format(i)).discover(mac = mac)
 		  i += 2
-		  log.info('Got dhcp client IP %s from server %s for mac %s'%(cip, sip, mac))
+		  log_test.info('Got dhcp client IP %s from server %s for mac %s'%(cip, sip, mac))
 		  self.lock.acquire()
 
 		  if cip:
@@ -1256,22 +1255,22 @@
 	    self.total_failure += self.failure_count
 
 
-	    log.info("Statistics for run %d",i)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of consecutive successful transactions          Running Time ")
-	    log.info("                   %d                                   %d        " %(self.ip_count, self.diff))
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of successful transactions per second in run %d:%f" %(i, self.transaction_count))
-	    log.info("----------------------------------------------------------------------------------")
+	    log_test.info("Statistics for run %d",i)
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of consecutive successful transactions          Running Time ")
+	    log_test.info("                   %d                                   %d        " %(self.ip_count, self.diff))
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of successful transactions per second in run %d:%f" %(i, self.transaction_count))
+	    log_test.info("----------------------------------------------------------------------------------")
 
-	log.info("Final Statistics for total successful transactions")
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Total transactions     Total No. of consecutive successes         Running Time ")
-	log.info("    %d                                 %d                             %d        " %(self.transactions,
+	log_test.info("Final Statistics for total successful transactions")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Total transactions     Total No. of consecutive successes         Running Time ")
+	log_test.info("    %d                                 %d                             %d        " %(self.transactions,
                  self.total_success, self.running_time))
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Average no. of consecutive successful transactions per second: %d", round(self.total_success/self.running_time,2))
-	log.info("----------------------------------------------------------------------------------")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Average no. of consecutive successful transactions per second: %d", round(self.total_success/self.running_time,2))
+	log_test.info("----------------------------------------------------------------------------------")
 
     def test_dhcpRelay_concurrent_clients_per_second(self, iface = 'veth0'):
 
@@ -1296,7 +1295,7 @@
 	def thread_fun(i):
 #		mac = self.get_mac('veth{}'.format(i))
 	    cip, sip, mac, _ = DHCPTest(iface = 'veth{}'.format(i)).only_discover(mac = RandMAC()._fix())
-	    log.info('Got dhcp client IP %s from server %s for mac %s'%(cip, sip, mac))
+	    log_test.info('Got dhcp client IP %s from server %s for mac %s'%(cip, sip, mac))
 	    self.lock.acquire()
 
 	    if cip:
@@ -1344,25 +1343,25 @@
 	    self.total_success += self.ip_count
 	    self.total_failure += self.failure_count
 
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("Statistics for run %d of sending only DHCP Discover",i)
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of transactions     No. of successes     No. of failures     Running Time ")
-	    log.info("    %d                    %d                     %d                  %d" %(self.ip_count+self.failure_count, 		               self.ip_count, self.failure_count, self.diff))
-	    log.info("----------------------------------------------------------------------------------")
-	    log.info("No. of clients per second in run %d:%f                                      "
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("Statistics for run %d of sending only DHCP Discover",i)
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of transactions     No. of successes     No. of failures     Running Time ")
+	    log_test.info("    %d                    %d                     %d                  %d" %(self.ip_count+self.failure_count, 		               self.ip_count, self.failure_count, self.diff))
+	    log_test.info("----------------------------------------------------------------------------------")
+	    log_test.info("No. of clients per second in run %d:%f                                      "
 		    %(i, self.transaction_count))
-	    log.info("----------------------------------------------------------------------------------")
+	    log_test.info("----------------------------------------------------------------------------------")
 
-	log.info("Final Statistics for total transactions of sending only DHCP Discover")
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Total transactions     Total No. of successes     Total No. of failures     Running Time ")
-	log.info("    %d                     %d                         %d                        %d" %(self.transactions,
+	log_test.info("Final Statistics for total transactions of sending only DHCP Discover")
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Total transactions     Total No. of successes     Total No. of failures     Running Time ")
+	log_test.info("    %d                     %d                         %d                        %d" %(self.transactions,
                  self.total_success, self.total_failure, self.running_time))
-	log.info("----------------------------------------------------------------------------------")
-	log.info("Average no. of clients per second: %d                                        ",
+	log_test.info("----------------------------------------------------------------------------------")
+	log_test.info("Average no. of clients per second: %d                                        ",
 		round(self.transactions/self.running_time,0))
-	log.info("----------------------------------------------------------------------------------")
+	log_test.info("----------------------------------------------------------------------------------")
 
 
     def test_dhcpRelay_client_conflict(self, iface = 'veth0'):
@@ -1370,20 +1369,20 @@
         self.host_load(iface)
         self.dhcp = DHCPTest(seed_ip = '10.10.10.1', iface = iface)
 	cip, sip, mac, _ = self.dhcp.only_discover()
-	log.info('Got dhcp client IP %s from server %s for mac %s.' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s.' %
 		  (cip, sip, mac) )
         self.dhcp1 = DHCPTest(seed_ip = cip, iface = iface)
 	new_cip, new_sip, new_mac, _ = self.dhcp1.only_discover(desired = True)
 	new_cip, new_sip = self.dhcp1.only_request(new_cip, new_mac)
-	log.info('Got dhcp client IP %s from server %s for mac %s.' %
+	log_test.info('Got dhcp client IP %s from server %s for mac %s.' %
 		  (new_cip, new_sip, new_mac) )
-	log.info("IP %s alredy consumed by mac %s." % (new_cip, new_mac))
-	log.info("Now sending DHCP Request for old DHCP discover.")
+	log_test.info("IP %s alredy consumed by mac %s." % (new_cip, new_mac))
+	log_test.info("Now sending DHCP Request for old DHCP discover.")
 	new_cip, new_sip = self.dhcp.only_request(cip, mac)
 	if new_cip is None:
-	   log.info('Got dhcp client IP %s from server %s for mac %s.Which is expected behavior.'
+	   log_test.info('Got dhcp client IP %s from server %s for mac %s.Which is expected behavior.'
                     %(new_cip, new_sip, new_mac) )
 	elif new_cip:
-	   log.info('Got dhcp client IP %s from server %s for mac %s.Which is not expected behavior as IP %s is already consumed.'
+	   log_test.info('Got dhcp client IP %s from server %s for mac %s.Which is not expected behavior as IP %s is already consumed.'
 		    %(new_cip, new_sip, new_mac, new_cip) )
 	   assert_equal(new_cip, None)