Adding PROX(Packet pROcessing eXecution engine) VNF to sampleVNF

JIRA: SAMPLEVNF-55

PROX is a DPDK-based application implementing Telco use-cases such as
a simplified BRAS/BNG, light-weight AFTR... It also allows configuring
finer grained network functions like QoS, Routing, load-balancing...

(We are moving PROX version v039 to sampleVNF
https://01.org/intel-data-plane-performance-demonstrators/prox-overview)

Change-Id: Ia3cb02cf0e49ac5596e922c197ff7e010293d033
Signed-off-by: Deepak S <deepak.s@linux.intel.com>

1 files changed, 445 insertions, 0 deletions

diff --git a/VNFs/DPPD-PROX/helper-scripts/openstackrapid/rapid.py b/VNFs/DPPD-PROX/helper-scripts/openstackrapid/rapid.py
new file mode 100755
index 00000000..1a0ea41c
--- /dev/null
+++ b/VNFs/DPPD-PROX/helper-scripts/openstackrapid/rapid.py
@@ -0,0 +1,445 @@
+#!/usr/bin/python
+
+##
+## Copyright (c) 2010-2017 Intel Corporation
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+##     http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+##
+
+import sys
+import time
+import subprocess
+import getopt
+from prox_ctrl import prox_ctrl
+
+version="17.04.19"
+stack = "rapidTestEnv" #Default string for stack
+yaml = "rapid.yaml" #Default string for yaml file
+key = "prox" # This is also the default in the yaml file....
+flavor = "prox_flavor" # This is also the default in the yaml file....
+image = "rapidVM" # This is also the default in the yaml file....
+image_file = "rapidVM.qcow2"
+network = "dpdk-network" # This is also the default in the yaml file....
+subnet = "dpdk-subnet" #Hardcoded at this moment
+
+def usage():
+	print("usage: rapid       [--version] [-v]")
+	print("                   [--stack STACK_NAME]")
+	print("                   [--yaml YAML_FILE]")
+	print("                   [--key KEY_NAME]")
+	print("                   [--flavor FLAVOR_NAME]")
+	print("                   [--image IMAGE_NAME]")
+	print("                   [--image_file IMAGE_FILE]")
+	print("                   [--network NETWORK]")
+	print("                   [-h] [--help]")
+	print("")
+	print("Command-line interface to RAPID")
+	print("")
+	print("optional arguments:")
+	print("  -v,  --version           Show program's version number and exit")
+	print("  --stack STACK_NAME       Specify a name for the heat stack. Default is rapidTestEnv.")
+	print("  --yaml YAML_FILE         Specify the yaml file to be used. Default is rapid.yaml.")
+	print("  --key KEY_NAME           Specify the key to be used. Default is prox.")
+	print("  --flavor FLAVOR_NAME     Specify the flavor to be used. Default is prox_flavor.")
+	print("  --image IMAGE_NAME       Specify the image to be used. Default is rapidVM.")
+	print("  --image_file IMAGE_FILE  Specify the image qcow2 file to be used. Default is rapidVM.qcow2.")
+	print("  --network NETWORK        Specify the network name to be used for the dataplane. Default is dpdk-network.")
+	print("  -h, --help               Show help message and exit.")
+	print("")
+	print("To delete the rapid stack, type the following command")
+	print("   openstack stack delete --yes --wait DPTestEnv")
+	print("Note that rapidTestEnv is the default stack name. Replace with STACK_NAME if needed")
+
+try:
+	opts, args = getopt.getopt(sys.argv[1:], "vh", ["version","help", "yaml=","stack=","key=","flavor=","image=","network="])
+except getopt.GetoptError as err:
+	print("===========================================")
+	print str(err)
+	print("===========================================")
+	usage()
+	sys.exit(2)
+if args:
+	usage()
+	sys.exit(2)
+for opt, arg in opts:
+	if opt in ("-h", "--help"):
+		usage()
+		sys.exit()
+	if opt in ("-v", "--version"):
+		print("Rapid Automated Performance Indication for Dataplane "+version)
+		sys.exit()
+	if opt in ("--stack"):
+		stack = arg
+		print ("Using '"+stack+"' as name for the stack")
+	elif opt in ("--yaml"):
+		yaml = arg
+		print ("Using stack: "+yaml)
+	elif opt in ("--key"):
+		key = arg
+		print ("Using key: "+key)
+	elif opt in ("--flavor"):
+		flavor = arg
+		print ("Using flavor: "+flavor)
+	elif opt in ("--image"):
+		image = arg
+		print ("Using image: "+image)
+	elif opt in ("--image_file"):
+		image_file = arg
+		print ("Using qcow2 file: "+image_file)
+	elif opt in ("--network"):
+		network = arg
+		print ("Using network: "+ network)
+
+print("Checking image: "+image)
+cmd = 'openstack image show '+image+' |grep "status " | tr -s " " | cut -d" " -f 4'
+ImageExist = subprocess.check_output(cmd , shell=True).strip()
+if ImageExist == 'active':
+	print("Image already available")
+else:
+	print('Creating image ...')
+	cmd = 'openstack image create --disk-format qcow2 --container-format bare --public --file ./'+image_file+ ' ' +image+' |grep "status " | tr -s " " | cut -d" " -f 4'
+	ImageExist = subprocess.check_output(cmd , shell=True).strip()
+	if ImageExist == 'active':
+		print('Image created and active')
+		cmd = 'openstack image set --property hw_vif_multiqueue_enabled="true" ' +image
+		subprocess.check_call(cmd , shell=True)
+	else :
+		raise Exception("Failed to create image")
+
+print("Checking key: "+key)
+cmd = 'openstack keypair show '+key+' |grep "name " | tr -s " " | cut -d" " -f 4'
+KeyExist = subprocess.check_output(cmd , shell=True).strip()
+if KeyExist == key:
+	print("Key already installed")
+else:
+	print('Creating key ...')
+	cmd = 'openstack keypair create '+ key + '>' +key+'.pem'
+	subprocess.check_call(cmd , shell=True)
+	cmd = 'chmod 600 ' +key+'.pem'
+	subprocess.check_call(cmd , shell=True)
+	cmd = 'openstack keypair show '+key+' |grep "name " | tr -s " " | cut -d" " -f 4'
+	KeyExist = subprocess.check_output(cmd , shell=True).strip()
+	if KeyExist == key:
+		print("Key created")
+	else :
+		raise Exception("Failed to create key: " + key)
+
+print("Checking flavor: "+flavor)
+cmd = 'openstack flavor show '+flavor+' |grep "name " | tr -s " " | cut -d" " -f 4'
+FlavorExist = subprocess.check_output(cmd , shell=True).strip()
+if FlavorExist == flavor:
+	print("Flavor already installed")
+else:
+	print('Creating flavor ...')
+	cmd = 'openstack flavor create '+flavor+' --ram 8192 --disk 80 --vcpus 4 |grep "name " | tr -s " " | cut -d" " -f 4'
+	FlavorExist = subprocess.check_output(cmd , shell=True).strip()
+	if FlavorExist == flavor:
+		cmd = 'openstack flavor set '+ flavor +' --property hw:mem_page_size="large" --property hw:cpu_policy="dedicated" --property hw:cpu_threads_policy="isolate"'
+		subprocess.check_call(cmd , shell=True)
+		print("Flavor created")
+	else :
+		raise Exception("Failed to create flavor: " + flavor)
+
+print("Checking network: "+network)
+cmd = 'openstack network show '+network+' |grep "status " | tr -s " " | cut -d" " -f 4'
+NetworkExist = subprocess.check_output(cmd , shell=True).strip()
+if NetworkExist == 'ACTIVE':
+	print("Network already active")
+else:
+	print('Creating network ...')
+	cmd = 'openstack network create '+network+' |grep "status " | tr -s " " | cut -d" " -f 4'
+	NetworkExist = subprocess.check_output(cmd , shell=True).strip()
+	if NetworkExist == 'ACTIVE':
+		print("Network created")
+	else :
+		raise Exception("Failed to create network: " + network)
+
+print("Checking subnet: "+subnet)
+cmd = 'neutron subnet-show '+ subnet+' |grep "name " | tr -s " " | cut -d" " -f 4'
+SubnetExist = subprocess.check_output(cmd , shell=True).strip()
+if SubnetExist == subnet:
+	print("Subnet already exists")
+else:
+	print('Creating subnet ...')
+	cmd = 'neutron subnet-create --name '+ subnet+ ' ' +network+' 10.10.10.0/24 |grep "name " | tr -s " " | cut -d" " -f 4'
+	SubnetExist = subprocess.check_output(cmd , shell=True).strip()
+	if SubnetExist == subnet:
+		print("Subnet created")
+	else :
+		raise Exception("Failed to create subnet: " + subnet)
+
+print("Checking Stack: "+stack)
+cmd = 'openstack stack show '+stack+' |grep "stack_status " | tr -s " " | cut -d" " -f 4'
+StackRunning = subprocess.check_output(cmd , shell=True).strip()
+if StackRunning == '':
+	print('Creating Stack ...')
+	cmd = 'openstack stack create -t '+ yaml +  ' --parameter flavor="'+flavor  +'" --parameter key="'+ key + '" --parameter image="'+image  + '" --parameter dpdk_network="'+network+'" --wait '+stack +' |grep "stack_status " | tr -s " " | cut -d" " -f 4'
+	StackRunning = subprocess.check_output(cmd , shell=True).strip()
+if StackRunning != 'CREATE_COMPLETE':
+	raise Exception("Failed to create stack")
+
+print('Stack running')
+genName=stack+'-gen'
+sutName=stack+'-sut'
+cmd = 'nova list | grep  '+ genName +' | tr -s " " | cut -d " " -f 4'
+genVMName = subprocess.check_output(cmd , shell=True).strip()
+print('Generator: '+ genVMName)
+cmd = 'nova list | grep  '+ sutName +' | tr -s " " | cut -d " " -f 4'
+sutVMName = subprocess.check_output(cmd , shell=True).strip()
+print('SUT:       '+ sutVMName)
+cmd='nova show ' + genVMName + ' | grep "dpdk-network" | tr -s " " | cut -d" " -f 5'
+genDPIP = subprocess.check_output(cmd , shell=True).strip()
+cmd='nova show ' + genVMName + ' | grep "admin_internal_net" | tr -s " " | cut -d" " -f 6'
+genAdminIP = subprocess.check_output(cmd , shell=True).strip()
+cmd='nova show ' + sutVMName + ' | grep "dpdk-network" | tr -s " " | cut -d" " -f 5'
+sutDPIP = subprocess.check_output(cmd , shell=True).strip()
+cmd='nova show ' + sutVMName + ' | grep "admin_internal_net" | tr -s " " | cut -d" " -f 6'
+sutAdminIP = subprocess.check_output(cmd , shell=True).strip()
+
+#========================================================================
+def connect_socket(client):
+	attempts = 1
+	print("Trying to connect to PROX (just launched) on %s, attempt: %d"
+			% (client.ip(), attempts))
+	sock = None
+	while True:
+		sock = client.prox_sock()
+		if sock is not None:
+			break
+		attempts += 1
+		if attempts > 20:
+			raise Exception("Failed to connect to PROX on %s after %d attempts"
+					% (client.ip(), attempts))
+		time.sleep(10)
+		print("Trying to connect to PROX (just launched) on %s, attempt: %d"
+				% (client.ip(), attempts))
+	print("Connected to PROX on %s" % client.ip())
+	return sock
+
+def connect_client(client):
+	attempts = 1
+	print ("Trying to connect to VM which was just launched on %s, attempt: %d"
+			% (client.ip(), attempts))
+	while True:
+		try:
+			client.connect()
+			break
+		except RuntimeWarning, ex:
+			attempts += 1
+			if attempts > 20:
+				raise Exception("Failed to connect to VM after %d attempts:\n%s"
+						% (attempts, ex))
+			time.sleep(15)
+			print ("Trying to connect to VM which was just launched on %s, attempt: %d"
+					% (client.ip(), attempts))
+	print("Connected to VM on %s" % client.ip())
+
+
+def run_testA():
+	global genclient
+	global sutclient
+	ip = genDPIP.split('.')
+	hexgenDPIP=hex(int(ip[0]))[2:].zfill(2) + ' ' + hex(int(ip[1]))[2:].zfill(2) + ' ' + hex(int(ip[2]))[2:].zfill(2) + ' ' + hex(int(ip[3]))[2:].zfill(2)
+	ip = sutDPIP.split('.')
+	hexsutDPIP=hex(int(ip[0]))[2:].zfill(2) + ' ' + hex(int(ip[1]))[2:].zfill(2) + ' ' + hex(int(ip[2]))[2:].zfill(2) + ' ' + hex(int(ip[3]))[2:].zfill(2)
+	with open("parameters.lua", "w") as f:
+		f.write('gen_hex_ip="'+hexgenDPIP+'"\n')
+		f.write('sut_hex_ip="'+hexsutDPIP+'"\n')
+		f.write('gen_ip="'+genDPIP+'"\n')
+		f.write('sut_ip="'+sutDPIP+'"\n')
+		f.close
+	genclient.scp_put('./gen.cfg', '/root/gen.cfg')
+	sutclient.scp_put('./sut.cfg', '/root/sut.cfg')
+	genclient.scp_put('./parameters.lua', '/root/parameters.lua')
+	sutclient.scp_put('./parameters.lua', '/root/parameters.lua')
+	print("Config files copied")
+	cmd = '/root/prox/build/prox -e -t -o cli -f /root/gen.cfg'
+	genclient.fork_cmd(cmd, 'PROX GEN')
+	cmd = '/root/prox/build/prox -t -o cli -f /root/sut.cfg'
+	sutclient.fork_cmd(cmd, 'PROX SUT')
+	gensock = connect_socket(genclient)
+	sutsock = connect_socket(sutclient)
+	new_speed = 100
+	attempts = 0
+	cores = [1,2]
+	gencores = [1]
+	gensock.reset_stats()
+	sutsock.reset_stats()
+	gensock.start([2])
+	print("+---------------------------------------------------------------------------------------------------------+")
+	print("| Generator is sending UDP (1 flow) packets (64 bytes) to SUT. SUT sends packets back                     |")
+	print("+------+-----------------+----------------+----------------+----------------+----------------+------------+")
+	print("| Test | Speed requested | Req to Generate|  Sent by Gen   | Forward by SUT |  Rec. by Gen   | Result     |")
+	print("+------+-----------------+----------------+----------------+----------------+----------------+------------+")
+	while (new_speed > 0.1):
+		attempts += 1
+		# Start generating packets at requested speed (in % of a 10Gb/s link)
+		gensock.speed(new_speed, gencores)
+		gensock.start(gencores)
+		time.sleep(1)
+		# Get statistics now that the generation is stable and NO ARP messages any more
+		old_sut_rx, old_sut_tx, old_sut_drop, old_sut_tsc, sut_tsc_hz = sutsock.core_stats([1])
+		old_rx, old_tx, old_drop, old_tsc, tsc_hz = gensock.core_stats(cores)
+		time.sleep(10)
+		# Get statistics after some execution time
+		new_rx, new_tx, new_drop, new_tsc, tsc_hz = gensock.core_stats(cores)
+		new_sut_rx, new_sut_tx, new_sut_drop, new_sut_tsc, sut_tsc_hz = sutsock.core_stats([1])
+		time.sleep(1)
+		# Stop generating
+		gensock.stop(gencores)
+		drop = new_drop-old_drop # drop is all packets dropped by all tasks. This includes packets dropped at the generator task + packets dropped by the nop task. In steady state, this equals to the number of packets received by this VM
+		rx = new_rx - old_rx     # rx is all packets received by the nop task = all packets received in the gen VM
+		tx = new_tx - old_tx  	 # tx is all generated packets actually accepted by the interface
+		tsc = new_tsc - old_tsc  # time difference between the 2 measurements, expressed in cycles.
+		sut_rx = new_sut_rx - old_sut_rx
+		sut_tx = new_sut_tx - old_sut_tx
+		sut_tsc = new_sut_tsc - old_sut_tsc
+		if (tx == 0):
+			raise Exception("TX = 0")
+		drop_rate = round(((drop-rx) * 100.0)/(tx+drop-rx),1)
+		pps_req_tx = round((tx+drop-rx)*tsc_hz*1.0/(tsc*1000000),5)
+		pps_tx = round(tx*tsc_hz*1.0/(tsc*1000000),5)
+		pps_rx = round(rx*tsc_hz*1.0/(tsc*1000000),5)
+		pps_sut_tx = round(sut_tx*sut_tsc_hz*1.0/(sut_tsc*1000000),5)
+		if ((drop_rate) < 1):
+			# This will stop the test when number of dropped packets is below a certain percentage
+			print("+------+-----------------+----------------+----------------+----------------+----------------+------------+")
+			print('|{:>5}'.format(str(attempts))+" | "+ '{:>14}'.format(str(new_speed)) + '% | '+ '{:>9}'.format(str(pps_req_tx))+' Mpps | '+ '{:>9}'.format(str(pps_tx)) +' Mpps | ' + '{:>9}'.format(str(pps_sut_tx)) +' Mpps | '+ '{:>9}'.format(str(pps_rx))+" Mpps | SUCCESS    |")
+			print("+------+-----------------+----------------+----------------+----------------+----------------+------------+")
+			break
+		else:
+			print('|{:>5}'.format(str(attempts))+" | "+ '{:>14}'.format(str(new_speed)) + '% | '+ '{:>9}'.format(str(pps_req_tx))+' Mpps | '+ '{:>9}'.format(str(pps_tx)) +' Mpps | ' + '{:>9}'.format(str(pps_sut_tx)) +' Mpps | '+ '{:>9}'.format(str(pps_rx))+" Mpps | FAILED     |")
+		# Following calculates the ratio for the new speed to be applied
+		# On the Y axis, we will find the ratio, a number between 0 and 1
+		# On the x axis, we find the % of dropped packets, a number between 0 and 100
+		# 2 lines are drawn and we take the minumun of these lines to calculate the ratio
+		# One line goes through (0,y0) and (p,q)
+		# The second line goes through (p,q) and (100,y100)
+		y0=0.99
+		y100=0.1
+		p=15
+		q=.9
+		ratio = min((q-y0)/p*drop_rate+y0,(q-y100)/(p-100)*drop_rate+q-p*(q-y100)/(p-100))
+		new_speed = (int(new_speed*ratio*100)+0.5)/100
+	gensock.quit()
+	sutsock.quit()
+	time.sleep(2)
+	print("")
+
+def run_testB():
+	global genclient
+	global sutclient
+	ip = genDPIP.split('.')
+	hexgenDPIP=hex(int(ip[0]))[2:].zfill(2) + ' ' + hex(int(ip[1]))[2:].zfill(2) + ' ' + hex(int(ip[2]))[2:].zfill(2) + ' ' + hex(int(ip[3]))[2:].zfill(2)
+	ip = sutDPIP.split('.')
+	hexsutDPIP=hex(int(ip[0]))[2:].zfill(2) + ' ' + hex(int(ip[1]))[2:].zfill(2) + ' ' + hex(int(ip[2]))[2:].zfill(2) + ' ' + hex(int(ip[3]))[2:].zfill(2)
+	with open("parameters.lua", "w") as f:
+		f.write('gen_hex_ip="'+hexgenDPIP+'"\n')
+		f.write('sut_hex_ip="'+hexsutDPIP+'"\n')
+		f.write('gen_ip="'+genDPIP+'"\n')
+		f.write('sut_ip="'+sutDPIP+'"\n')
+		f.close
+	genclient.scp_put('./gen.cfg', '/root/gen.cfg')
+	sutclient.scp_put('./sut.cfg', '/root/sut.cfg')
+	genclient.scp_put('./parameters.lua', '/root/parameters.lua')
+	sutclient.scp_put('./parameters.lua', '/root/parameters.lua')
+	print("Config files copied")
+	cmd = '/root/prox/build/prox -e -t -o cli -f /root/gen.cfg'
+	genclient.fork_cmd(cmd, 'PROX GEN')
+	cmd = '/root/prox/build/prox -t -o cli -f /root/sut.cfg'
+	sutclient.fork_cmd(cmd, 'PROX SUT')
+	gensock = connect_socket(genclient)
+	sutsock = connect_socket(sutclient)
+	print("+----------------------------------------------------------------------------------------------+")
+	print("| UDP, 64 bytes, different number of flows by randomizing SRC & DST UDP port                   |")
+	print("+--------+-----------------+----------------+----------------+----------------+----------------+")
+	print("| Flows  | Speed requested | Req to Generate|  Sent by Gen   | Forward by SUT |  Rec. by Gen   |")
+	print("+--------+-----------------+----------------+----------------+----------------+----------------+")
+	cores = [1,2]
+	gencores = [1]
+	gensock.start([2])
+	new_speed = 100
+	# To generate a desired number of flows, PROX will randomize the bits in source and destination ports, as specified by the bit masks in the flows variable. 
+	flows={128:['0000000000000XXX','000000000000XXXX'],1024:['00000000000XXXXX','00000000000XXXXX'],8192:['0000000000XXXXXX','000000000XXXXXXX'],65535:['00000000XXXXXXXX','00000000XXXXXXXX'],524280:['0000000XXXXXXXXX','000000XXXXXXXXXX']}
+	for flow_number in sorted(flows.iterkeys()):
+		#new_speed = 100 Commented out: Not starting from 100% since we are trying more flows, so speed will not be higher than the speed achieved in previous loop
+		attempts = 0
+		gensock.reset_stats()
+		sutsock.reset_stats()
+		source_port,destination_port = flows[flow_number]
+		gensock.set_random(gencores,0,34,source_port,2)
+		gensock.set_random(gencores,0,36,destination_port,2)
+		while (new_speed > 0.1):
+			attempts += 1
+			# Start generating packets at requested speed (in % of a 10Gb/s link)
+			gensock.speed(new_speed, gencores)
+			gensock.start(gencores)
+			time.sleep(1)
+			# Get statistics now that the generation is stable and NO ARP messages any more
+			old_sut_rx, old_sut_tx, old_sut_drop, old_sut_tsc, sut_tsc_hz = sutsock.core_stats([1])
+			old_rx, old_tx, old_drop, old_tsc, tsc_hz = gensock.core_stats(cores)
+			time.sleep(10)
+			# Get statistics after some execution time
+			new_rx, new_tx, new_drop, new_tsc, tsc_hz = gensock.core_stats(cores)
+			new_sut_rx, new_sut_tx, new_sut_drop, new_sut_tsc, sut_tsc_hz = sutsock.core_stats([1])
+			time.sleep(1)
+			# Stop generating
+			gensock.stop(gencores)
+			drop = new_drop-old_drop # drop is all packets dropped by all tasks. This includes packets dropped at the generator task + packets dropped by the nop task. In steady state, this equals to the number of packets received by this VM
+			rx = new_rx - old_rx     # rx is all packets received by the nop task = all packets received in the gen VM
+			tx = new_tx - old_tx  	 # tx is all generated packets actually accepted by the interface
+			tsc = new_tsc - old_tsc  # time difference between the 2 measurements, expressed in cycles.
+			sut_rx = new_sut_rx - old_sut_rx
+			sut_tx = new_sut_tx - old_sut_tx
+			sut_tsc = new_sut_tsc - old_sut_tsc
+			if (tx == 0):
+				raise Exception("TX = 0")
+			drop_rate = round(((drop-rx) * 100.0)/(tx+drop-rx),1)
+			pps_req_tx = round((tx+drop-rx)*tsc_hz*1.0/(tsc*1000000),5)
+			pps_tx = round(tx*tsc_hz*1.0/(tsc*1000000),5)
+			pps_rx = round(rx*tsc_hz*1.0/(tsc*1000000),5)
+			pps_sut_tx = round(sut_tx*sut_tsc_hz*1.0/(sut_tsc*1000000),5)
+			if ((drop_rate) < 1):
+				# This will stop the test when number of dropped packets is below a certain percentage
+				print('|{:>7}'.format(str(flow_number))+" | "+ '{:>14}'.format(str(new_speed)) + '% | '+ '{:>9}'.format(str(pps_req_tx))+' Mpps | '+ '{:>9}'.format(str(pps_tx)) +' Mpps | ' + '{:>9}'.format(str(pps_sut_tx)) +' Mpps | '+ '{:>9}'.format(str(pps_rx))+" Mpps |")
+				print("+--------+-----------------+----------------+----------------+----------------+----------------+")
+				break
+			# Following calculates the ratio for the new speed to be applied
+			# On the Y axis, we will find the ratio, a number between 0 and 1
+			# On the x axis, we find the % of dropped packets, a number between 0 and 100
+			# 2 lines are drawn and we take the minumun of these lines to calculate the ratio
+			# One line goes through (0,y0) and (p,q)
+			# The second line goes through (p,q) and (100,y100)
+			y0=0.99
+			y100=0.1
+			p=15
+			q=.9
+			ratio = min((q-y0)/p*drop_rate+y0,(q-y100)/(p-100)*drop_rate+q-p*(q-y100)/(p-100))
+			new_speed = (int(new_speed*ratio*100)+0.5)/100
+	gensock.quit()
+	sutsock.quit()
+	time.sleep(2)
+	print("")
+
+#========================================================================
+genclient = prox_ctrl(genAdminIP, key+'.pem')
+connect_client(genclient)
+sutclient = prox_ctrl(sutAdminIP, key+'.pem')
+connect_client(sutclient)
+#####################################################################################
+run_testA()
+run_testB()
+#####################################################################################
+genclient.close()
+sutclient.close()
+