| #TopoPerfNext |
| # |
| #Topology Performance test for ONOS-next |
| # |
| #andrew@onlab.us |
| |
| import time |
| import sys |
| import os |
| import re |
| |
| class TopoPerfNext: |
| def __init__(self): |
| self.default = '' |
| |
| def CASE1(self, main): |
| ''' |
| ONOS startup sequence |
| ''' |
| import time |
| |
| cell_name = main.params['ENV']['cellName'] |
| |
| git_pull = main.params['GIT']['autoPull'] |
| checkout_branch = main.params['GIT']['checkout'] |
| |
| ONOS1_ip = main.params['CTRL']['ip1'] |
| ONOS2_ip = main.params['CTRL']['ip2'] |
| ONOS3_ip = main.params['CTRL']['ip3'] |
| MN1_ip = main.params['MN']['ip1'] |
| BENCH_ip = main.params['BENCH']['ip'] |
| |
| main.case("Setting up test environment") |
| main.log.report("Setting up test environment") |
| |
| main.step("Creating cell file") |
| cell_file_result = main.ONOSbench.create_cell_file( |
| BENCH_ip, cell_name, MN1_ip, "onos-core", |
| ONOS1_ip, ONOS2_ip, ONOS3_ip) |
| |
| main.step("Applying cell file to environment") |
| cell_apply_result = main.ONOSbench.set_cell(cell_name) |
| verify_cell_result = main.ONOSbench.verify_cell() |
| |
| main.step("Git checkout and pull "+checkout_branch) |
| if git_pull == 'on': |
| checkout_result = \ |
| main.ONOSbench.git_checkout(checkout_branch) |
| pull_result = main.ONOSbench.git_pull() |
| else: |
| checkout_result = main.TRUE |
| pull_result = main.TRUE |
| main.log.info("Skipped git checkout and pull") |
| |
| main.step("Using mvn clean & install") |
| #mvn_result = main.ONOSbench.clean_install() |
| mvn_result = main.TRUE |
| |
| main.step("Set cell for ONOS cli env") |
| main.ONOS1cli.set_cell(cell_name) |
| main.ONOS2cli.set_cell(cell_name) |
| main.ONOS3cli.set_cell(cell_name) |
| |
| main.step("Creating ONOS package") |
| package_result = main.ONOSbench.onos_package() |
| |
| main.step("Installing ONOS package") |
| install1_result = main.ONOSbench.onos_install(node=ONOS1_ip) |
| install2_result = main.ONOSbench.onos_install(node=ONOS2_ip) |
| install3_result = main.ONOSbench.onos_install(node=ONOS3_ip) |
| |
| time.sleep(10) |
| |
| main.step("Start onos cli") |
| cli1 = main.ONOS1cli.start_onos_cli(ONOS1_ip) |
| cli2 = main.ONOS2cli.start_onos_cli(ONOS2_ip) |
| cli3 = main.ONOS3cli.start_onos_cli(ONOS3_ip) |
| |
| main.step("Enable metrics feature") |
| main.ONOS1cli.feature_install("onos-app-metrics") |
| main.ONOS2cli.feature_install("onos-app-metrics") |
| main.ONOS3cli.feature_install("onos-app-metrics") |
| |
| utilities.assert_equals(expect=main.TRUE, |
| actual= cell_file_result and cell_apply_result and\ |
| verify_cell_result and checkout_result and\ |
| pull_result and mvn_result and\ |
| install1_result and install2_result and\ |
| install3_result, |
| onpass="Test Environment setup successful", |
| onfail="Failed to setup test environment") |
| |
| def CASE2(self, main): |
| ''' |
| Assign s1 to ONOS1 and measure latency |
| |
| There are 4 levels of latency measurements to this test: |
| 1) End-to-end measurement: Complete end-to-end measurement |
| from TCP (SYN/ACK) handshake to Graph change |
| 2) OFP-to-graph measurement: 'ONOS processing' snippet of |
| measurement from OFP Vendor message to Graph change |
| 3) OFP-to-device measurement: 'ONOS processing without |
| graph change' snippet of measurement from OFP vendor |
| message to Device change timestamp |
| 4) T0-to-device measurement: Measurement that includes |
| the switch handshake to devices timestamp without |
| the graph view change. (TCP handshake -> Device |
| change) |
| ''' |
| import time |
| import subprocess |
| import json |
| import requests |
| import os |
| |
| ONOS1_ip = main.params['CTRL']['ip1'] |
| ONOS2_ip = main.params['CTRL']['ip2'] |
| ONOS3_ip = main.params['CTRL']['ip3'] |
| ONOS_user = main.params['CTRL']['user'] |
| |
| default_sw_port = main.params['CTRL']['port1'] |
| |
| #Number of iterations of case |
| num_iter = main.params['TEST']['numIter'] |
| #Number of first 'x' iterations to ignore: |
| iter_ignore = int(main.params['TEST']['iterIgnore']) |
| |
| #Timestamp 'keys' for json metrics output. |
| #These are subject to change, hence moved into params |
| deviceTimestamp = main.params['JSON']['deviceTimestamp'] |
| graphTimestamp = main.params['JSON']['graphTimestamp'] |
| |
| debug_mode = main.params['TEST']['debugMode'] |
| onos_log = main.params['TEST']['onosLogFile'] |
| |
| #Threshold for the test |
| threshold_str = main.params['TEST']['singleSwThreshold'] |
| threshold_obj = threshold_str.split(",") |
| threshold_min = int(threshold_obj[0]) |
| threshold_max = int(threshold_obj[1]) |
| |
| #List of switch add latency collected from |
| #all iterations |
| latency_end_to_end_list = [] |
| latency_ofp_to_graph_list = [] |
| latency_ofp_to_device_list = [] |
| latency_t0_to_device_list = [] |
| latency_tcp_to_ofp_list = [] |
| |
| #Directory/file to store tshark results |
| tshark_of_output = "/tmp/tshark_of_topo.txt" |
| tshark_tcp_output = "/tmp/tshark_tcp_topo.txt" |
| |
| #String to grep in tshark output |
| tshark_tcp_string = "TCP 74 "+default_sw_port |
| tshark_of_string = "OFP 86 Vendor" |
| |
| #Initialize assertion to TRUE |
| assertion = main.TRUE |
| |
| local_time = time.strftime('%x %X') |
| local_time = local_time.replace("/","") |
| local_time = local_time.replace(" ","_") |
| local_time = local_time.replace(":","") |
| if debug_mode == 'on': |
| main.ONOS1.tshark_pcap("eth0", |
| "/tmp/single_sw_lat_pcap_"+local_time) |
| |
| main.log.info("TEST") |
| |
| main.log.report("Latency of adding one switch to controller") |
| main.log.report("First "+str(iter_ignore)+" iterations ignored"+ |
| " for jvm warmup time") |
| main.log.report("Total iterations of test: "+str(num_iter)) |
| |
| for i in range(0, int(num_iter)): |
| main.log.info("Starting tshark capture") |
| |
| #* TCP [ACK, SYN] is used as t0_a, the |
| # very first "exchange" between ONOS and |
| # the switch for end-to-end measurement |
| #* OFP [Stats Reply] is used for t0_b |
| # the very last OFP message between ONOS |
| # and the switch for ONOS measurement |
| main.ONOS1.tshark_grep(tshark_tcp_string, |
| tshark_tcp_output) |
| main.ONOS1.tshark_grep(tshark_of_string, |
| tshark_of_output) |
| |
| #Wait and ensure tshark is started and |
| #capturing |
| time.sleep(10) |
| |
| main.log.info("Assigning s1 to controller") |
| |
| main.Mininet1.assign_sw_controller(sw="1", |
| ip1=ONOS1_ip, port1=default_sw_port) |
| |
| #Wait and ensure switch is assigned |
| #before stopping tshark |
| time.sleep(30) |
| |
| main.log.info("Stopping all Tshark processes") |
| main.ONOS1.stop_tshark() |
| |
| #tshark output is saved in ONOS. Use subprocess |
| #to copy over files to TestON for parsing |
| main.log.info("Copying over tshark files") |
| |
| #TCP CAPTURE **** |
| #Copy the tshark output from ONOS machine to |
| #TestON machine in tshark_tcp_output directory>file |
| os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+ |
| tshark_tcp_output+" /tmp/") |
| tcp_file = open(tshark_tcp_output, 'r') |
| temp_text = tcp_file.readline() |
| temp_text = temp_text.split(" ") |
| |
| main.log.info("Object read in from TCP capture: "+ |
| str(temp_text)) |
| if len(temp_text) > 1: |
| t0_tcp = float(temp_text[1])*1000.0 |
| else: |
| main.log.error("Tshark output file for TCP"+ |
| " returned unexpected results") |
| t0_tcp = 0 |
| assertion = main.FALSE |
| |
| tcp_file.close() |
| #**************** |
| |
| #OF CAPTURE **** |
| os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+ |
| tshark_of_output+" /tmp/") |
| of_file = open(tshark_of_output, 'r') |
| |
| line_ofp = "" |
| #Read until last line of file |
| while True: |
| temp_text = of_file.readline() |
| if temp_text !='': |
| line_ofp = temp_text |
| else: |
| break |
| obj = line_ofp.split(" ") |
| |
| main.log.info("Object read in from OFP capture: "+ |
| str(line_ofp)) |
| |
| if len(line_ofp) > 1: |
| t0_ofp = float(obj[1])*1000.0 |
| else: |
| main.log.error("Tshark output file for OFP"+ |
| " returned unexpected results") |
| t0_ofp = 0 |
| assertion = main.FALSE |
| |
| of_file.close() |
| #**************** |
| |
| json_str_1 = main.ONOS1cli.topology_events_metrics() |
| json_str_2 = main.ONOS2cli.topology_events_metrics() |
| json_str_3 = main.ONOS3cli.topology_events_metrics() |
| |
| json_obj_1 = json.loads(json_str_1) |
| json_obj_2 = json.loads(json_str_2) |
| json_obj_3 = json.loads(json_str_3) |
| |
| #Obtain graph timestamp. This timestsamp captures |
| #the epoch time at which the topology graph was updated. |
| graph_timestamp_1 = \ |
| json_obj_1[graphTimestamp]['value'] |
| graph_timestamp_2 = \ |
| json_obj_2[graphTimestamp]['value'] |
| graph_timestamp_3 = \ |
| json_obj_3[graphTimestamp]['value'] |
| |
| #Obtain device timestamp. This timestamp captures |
| #the epoch time at which the device event happened |
| device_timestamp_1 = \ |
| json_obj_1[deviceTimestamp]['value'] |
| device_timestamp_2 = \ |
| json_obj_2[deviceTimestamp]['value'] |
| device_timestamp_3 = \ |
| json_obj_3[deviceTimestamp]['value'] |
| |
| #t0 to device processing latency |
| delta_device_1 = int(device_timestamp_1) - int(t0_tcp) |
| delta_device_2 = int(device_timestamp_2) - int(t0_tcp) |
| delta_device_3 = int(device_timestamp_3) - int(t0_tcp) |
| |
| #Get average of delta from all instances |
| avg_delta_device = \ |
| (int(delta_device_1)+\ |
| int(delta_device_2)+\ |
| int(delta_device_3)) / 3 |
| |
| #Ensure avg delta meets the threshold before appending |
| if avg_delta_device > 0.0 and avg_delta_device < 10000\ |
| and int(i) > iter_ignore: |
| latency_t0_to_device_list.append(avg_delta_device) |
| else: |
| main.log.info("Results for t0-to-device ignored"+\ |
| "due to excess in threshold / warmup iteration.") |
| |
| #t0 to graph processing latency (end-to-end) |
| delta_graph_1 = int(graph_timestamp_1) - int(t0_tcp) |
| delta_graph_2 = int(graph_timestamp_2) - int(t0_tcp) |
| delta_graph_3 = int(graph_timestamp_3) - int(t0_tcp) |
| |
| #Get average of delta from all instances |
| avg_delta_graph = \ |
| (int(delta_graph_1)+\ |
| int(delta_graph_2)+\ |
| int(delta_graph_3)) / 3 |
| |
| #Ensure avg delta meets the threshold before appending |
| if avg_delta_graph > 0.0 and avg_delta_graph < 10000\ |
| and int(i) > iter_ignore: |
| latency_end_to_end_list.append(avg_delta_graph) |
| else: |
| main.log.info("Results for end-to-end ignored"+\ |
| "due to excess in threshold") |
| |
| #ofp to graph processing latency (ONOS processing) |
| delta_ofp_graph_1 = int(graph_timestamp_1) - int(t0_ofp) |
| delta_ofp_graph_2 = int(graph_timestamp_2) - int(t0_ofp) |
| delta_ofp_graph_3 = int(graph_timestamp_3) - int(t0_ofp) |
| |
| avg_delta_ofp_graph = \ |
| (int(delta_ofp_graph_1)+\ |
| int(delta_ofp_graph_2)+\ |
| int(delta_ofp_graph_3)) / 3 |
| |
| if avg_delta_ofp_graph > threshold_min \ |
| and avg_delta_ofp_graph < threshold_max\ |
| and int(i) > iter_ignore: |
| latency_ofp_to_graph_list.append(avg_delta_ofp_graph) |
| else: |
| main.log.info("Results for ofp-to-graph "+\ |
| "ignored due to excess in threshold") |
| |
| #ofp to device processing latency (ONOS processing) |
| delta_ofp_device_1 = float(device_timestamp_1) - float(t0_ofp) |
| delta_ofp_device_2 = float(device_timestamp_2) - float(t0_ofp) |
| delta_ofp_device_3 = float(device_timestamp_3) - float(t0_ofp) |
| |
| avg_delta_ofp_device = \ |
| (float(delta_ofp_device_1)+\ |
| float(delta_ofp_device_2)+\ |
| float(delta_ofp_device_3)) / 3 |
| |
| #NOTE: ofp - delta measurements are occasionally negative |
| # due to system time misalignment. |
| latency_ofp_to_device_list.append(avg_delta_ofp_device) |
| |
| delta_ofp_tcp = int(t0_ofp) - int(t0_tcp) |
| if delta_ofp_tcp > threshold_min \ |
| and delta_ofp_tcp < threshold_max and\ |
| int(i) > iter_ignore: |
| latency_tcp_to_ofp_list.append(delta_ofp_tcp) |
| else: |
| main.log.info("Results fo tcp-to-ofp "+\ |
| "ignored due to excess in threshold") |
| |
| #TODO: |
| #Fetch logs upon threshold excess |
| |
| main.log.info("ONOS1 delta end-to-end: "+ |
| str(delta_graph_1) + " ms") |
| main.log.info("ONOS2 delta end-to-end: "+ |
| str(delta_graph_2) + " ms") |
| main.log.info("ONOS3 delta end-to-end: "+ |
| str(delta_graph_3) + " ms") |
| |
| main.log.info("ONOS1 delta OFP - graph: "+ |
| str(delta_ofp_graph_1) + " ms") |
| main.log.info("ONOS2 delta OFP - graph: "+ |
| str(delta_ofp_graph_2) + " ms") |
| main.log.info("ONOS3 delta OFP - graph: "+ |
| str(delta_ofp_graph_3) + " ms") |
| |
| main.log.info("ONOS1 delta device - t0: "+ |
| str(delta_device_1) + " ms") |
| main.log.info("ONOS2 delta device - t0: "+ |
| str(delta_device_2) + " ms") |
| main.log.info("ONOS3 delta device - t0: "+ |
| str(delta_device_3) + " ms") |
| |
| main.log.info("TCP to OFP delta: "+ |
| str(delta_ofp_tcp) + " ms") |
| #main.log.info("ONOS1 delta OFP - device: "+ |
| # str(delta_ofp_device_1) + " ms") |
| #main.log.info("ONOS2 delta OFP - device: "+ |
| # str(delta_ofp_device_2) + " ms") |
| #main.log.info("ONOS3 delta OFP - device: "+ |
| # str(delta_ofp_device_3) + " ms") |
| |
| main.step("Remove switch from controller") |
| main.Mininet1.delete_sw_controller("s1") |
| |
| time.sleep(5) |
| |
| #END of for loop iteration |
| |
| #If there is at least 1 element in each list, |
| #pass the test case |
| if len(latency_end_to_end_list) > 0 and\ |
| len(latency_ofp_to_graph_list) > 0 and\ |
| len(latency_ofp_to_device_list) > 0 and\ |
| len(latency_t0_to_device_list) > 0 and\ |
| len(latency_tcp_to_ofp_list) > 0: |
| assertion = main.TRUE |
| elif len(latency_end_to_end_list) == 0: |
| #The appending of 0 here is to prevent |
| #the min,max,sum functions from failing |
| #below |
| latency_end_to_end_list.append(0) |
| assertion = main.FALSE |
| elif len(latency_ofp_to_graph_list) == 0: |
| latency_ofp_to_graph_list.append(0) |
| assertion = main.FALSE |
| elif len(latency_ofp_to_device_list) == 0: |
| latency_ofp_to_device_list.append(0) |
| assertion = main.FALSE |
| elif len(latency_t0_to_device_list) == 0: |
| latency_t0_to_device_list.append(0) |
| assertion = main.FALSE |
| elif len(latency_tcp_to_ofp_list) == 0: |
| latency_tcp_to_ofp_list.append(0) |
| assertion = main.FALSE |
| |
| #Calculate min, max, avg of latency lists |
| latency_end_to_end_max = \ |
| int(max(latency_end_to_end_list)) |
| latency_end_to_end_min = \ |
| int(min(latency_end_to_end_list)) |
| latency_end_to_end_avg = \ |
| (int(sum(latency_end_to_end_list)) / \ |
| len(latency_end_to_end_list)) |
| |
| latency_ofp_to_graph_max = \ |
| int(max(latency_ofp_to_graph_list)) |
| latency_ofp_to_graph_min = \ |
| int(min(latency_ofp_to_graph_list)) |
| latency_ofp_to_graph_avg = \ |
| (int(sum(latency_ofp_to_graph_list)) / \ |
| len(latency_ofp_to_graph_list)) |
| |
| latency_ofp_to_device_max = \ |
| int(max(latency_ofp_to_device_list)) |
| latency_ofp_to_device_min = \ |
| int(min(latency_ofp_to_device_list)) |
| latency_ofp_to_device_avg = \ |
| (int(sum(latency_ofp_to_device_list)) / \ |
| len(latency_ofp_to_device_list)) |
| |
| latency_t0_to_device_max = \ |
| int(max(latency_t0_to_device_list)) |
| latency_t0_to_device_min = \ |
| int(min(latency_t0_to_device_list)) |
| latency_t0_to_device_avg = \ |
| (int(sum(latency_t0_to_device_list)) / \ |
| len(latency_ofp_to_device_list)) |
| |
| latency_tcp_to_ofp_max = \ |
| int(max(latency_tcp_to_ofp_list)) |
| latency_tcp_to_ofp_min = \ |
| int(min(latency_tcp_to_ofp_list)) |
| latency_tcp_to_ofp_avg = \ |
| (int(sum(latency_tcp_to_ofp_list)) / \ |
| len(latency_tcp_to_ofp_list)) |
| |
| main.log.report("Switch add - End-to-end latency: "+\ |
| "Min: "+str(latency_end_to_end_min)+" ms "+\ |
| "Max: "+str(latency_end_to_end_max)+" ms "+\ |
| "Avg: "+str(latency_end_to_end_avg)+" ms ") |
| main.log.report("Switch add - OFP-to-Graph latency: "+\ |
| "Min: "+str(latency_ofp_to_graph_min)+" ms "+\ |
| "Max: "+str(latency_ofp_to_graph_max)+" ms "+\ |
| "Avg: "+str(latency_ofp_to_graph_avg)+" ms ") |
| main.log.report("Switch add - TCP-to-OFP latency: "+\ |
| "Min: "+str(latency_tcp_to_ofp_min)+" ms "+\ |
| "Max: "+str(latency_tcp_to_ofp_max)+" ms "+\ |
| "Avg: "+str(latency_tcp_to_ofp_avg)+" ms ") |
| |
| if debug_mode == 'on': |
| main.ONOS1.cp_logs_to_dir("/opt/onos/log/karaf.log", |
| "/tmp/", copy_file_name="sw_lat_karaf") |
| |
| utilities.assert_equals(expect=main.TRUE, actual=assertion, |
| onpass="Switch latency test successful", |
| onfail="Switch latency test failed") |
| |
| def CASE3(self, main): |
| ''' |
| Bring port up / down and measure latency. |
| Port enable / disable is simulated by ifconfig up / down |
| |
| In ONOS-next, we must ensure that the port we are |
| manipulating is connected to another switch with a valid |
| connection. Otherwise, graph view will not be updated. |
| ''' |
| import time |
| import subprocess |
| import os |
| import requests |
| import json |
| |
| ONOS1_ip = main.params['CTRL']['ip1'] |
| ONOS2_ip = main.params['CTRL']['ip2'] |
| ONOS3_ip = main.params['CTRL']['ip3'] |
| ONOS_user = main.params['CTRL']['user'] |
| |
| default_sw_port = main.params['CTRL']['port1'] |
| |
| assertion = main.TRUE |
| #Number of iterations of case |
| num_iter = main.params['TEST']['numIter'] |
| |
| #Timestamp 'keys' for json metrics output. |
| #These are subject to change, hence moved into params |
| deviceTimestamp = main.params['JSON']['deviceTimestamp'] |
| graphTimestamp = main.params['JSON']['graphTimestamp'] |
| |
| debug_mode = main.params['TEST']['debugMode'] |
| |
| local_time = time.strftime('%x %X') |
| local_time = local_time.replace("/","") |
| local_time = local_time.replace(" ","_") |
| local_time = local_time.replace(":","") |
| if debug_mode == 'on': |
| main.ONOS1.tshark_pcap("eth0", |
| "/tmp/port_lat_pcap_"+local_time) |
| |
| #Threshold for this test case |
| up_threshold_str = main.params['TEST']['portUpThreshold'] |
| down_threshold_str = main.params['TEST']['portDownThreshold'] |
| |
| up_threshold_obj = up_threshold_str.split(",") |
| down_threshold_obj = down_threshold_str.split(",") |
| |
| up_threshold_min = int(up_threshold_obj[0]) |
| up_threshold_max = int(up_threshold_obj[1]) |
| |
| down_threshold_min = int(down_threshold_obj[0]) |
| down_threshold_max = int(down_threshold_obj[1]) |
| |
| #NOTE: Some hardcoded variables you may need to configure |
| # besides the params |
| |
| tshark_port_status = "OFP 130 Port Status" |
| |
| tshark_port_up = "/tmp/tshark_port_up.txt" |
| tshark_port_down = "/tmp/tshark_port_down.txt" |
| interface_config = "s1-eth1" |
| |
| main.log.report("Port enable / disable latency") |
| main.log.report("Simulated by ifconfig up / down") |
| main.log.report("Total iterations of test: "+str(num_iter)) |
| |
| main.step("Assign switches s1 and s2 to controller 1") |
| main.Mininet1.assign_sw_controller(sw="1",ip1=ONOS1_ip, |
| port1=default_sw_port) |
| main.Mininet1.assign_sw_controller(sw="2",ip1=ONOS1_ip, |
| port1=default_sw_port) |
| |
| #Give enough time for metrics to propagate the |
| #assign controller event. Otherwise, these events may |
| #carry over to our measurements |
| time.sleep(15) |
| |
| port_up_device_to_ofp_list = [] |
| port_up_graph_to_ofp_list = [] |
| port_down_device_to_ofp_list = [] |
| port_down_graph_to_ofp_list = [] |
| |
| for i in range(0, int(num_iter)): |
| main.step("Starting wireshark capture for port status down") |
| main.ONOS1.tshark_grep(tshark_port_status, |
| tshark_port_down) |
| |
| time.sleep(5) |
| |
| #Disable interface that is connected to switch 2 |
| main.step("Disable port: "+interface_config) |
| main.Mininet1.handle.sendline("sh ifconfig "+ |
| interface_config+" down") |
| main.Mininet1.handle.expect("mininet>") |
| |
| time.sleep(3) |
| main.ONOS1.tshark_stop() |
| |
| main.step("Obtain t1 by metrics call") |
| json_str_up_1 = main.ONOS1cli.topology_events_metrics() |
| json_str_up_2 = main.ONOS2cli.topology_events_metrics() |
| json_str_up_3 = main.ONOS3cli.topology_events_metrics() |
| |
| json_obj_1 = json.loads(json_str_up_1) |
| json_obj_2 = json.loads(json_str_up_2) |
| json_obj_3 = json.loads(json_str_up_3) |
| |
| #Copy tshark output file from ONOS to TestON instance |
| #/tmp directory |
| os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+ |
| tshark_port_down+" /tmp/") |
| |
| f_port_down = open(tshark_port_down, 'r') |
| #Get first line of port down event from tshark |
| f_line = f_port_down.readline() |
| obj_down = f_line.split(" ") |
| if len(f_line) > 0: |
| timestamp_begin_pt_down = int(float(obj_down[1])*1000) |
| main.log.info("Port down begin timestamp: "+ |
| str(timestamp_begin_pt_down)) |
| else: |
| main.log.info("Tshark output file returned unexpected"+ |
| " results: "+str(obj_down)) |
| timestamp_begin_pt_down = 0 |
| |
| f_port_down.close() |
| |
| main.log.info("TEST tshark obj: "+str(obj_down)) |
| |
| time.sleep(3) |
| |
| #Obtain graph timestamp. This timestsamp captures |
| #the epoch time at which the topology graph was updated. |
| graph_timestamp_1 = \ |
| json_obj_1[graphTimestamp]['value'] |
| graph_timestamp_2 = \ |
| json_obj_2[graphTimestamp]['value'] |
| graph_timestamp_3 = \ |
| json_obj_3[graphTimestamp]['value'] |
| |
| main.log.info("TEST graph timestamp ONOS1: "+ |
| str(graph_timestamp_1)) |
| |
| #Obtain device timestamp. This timestamp captures |
| #the epoch time at which the device event happened |
| device_timestamp_1 = \ |
| json_obj_1[deviceTimestamp]['value'] |
| device_timestamp_2 = \ |
| json_obj_2[deviceTimestamp]['value'] |
| device_timestamp_3 = \ |
| json_obj_3[deviceTimestamp]['value'] |
| |
| #Get delta between graph event and OFP |
| pt_down_graph_to_ofp_1 = int(graph_timestamp_1) -\ |
| int(timestamp_begin_pt_down) |
| pt_down_graph_to_ofp_2 = int(graph_timestamp_2) -\ |
| int(timestamp_begin_pt_down) |
| pt_down_graph_to_ofp_3 = int(graph_timestamp_3) -\ |
| int(timestamp_begin_pt_down) |
| |
| #Get delta between device event and OFP |
| pt_down_device_to_ofp_1 = int(device_timestamp_1) -\ |
| int(timestamp_begin_pt_down) |
| pt_down_device_to_ofp_2 = int(device_timestamp_2) -\ |
| int(timestamp_begin_pt_down) |
| pt_down_device_to_ofp_3 = int(device_timestamp_3) -\ |
| int(timestamp_begin_pt_down) |
| |
| #Caluclate average across clusters |
| pt_down_graph_to_ofp_avg =\ |
| (int(pt_down_graph_to_ofp_1) + |
| int(pt_down_graph_to_ofp_2) + |
| int(pt_down_graph_to_ofp_3)) / 3 |
| pt_down_device_to_ofp_avg = \ |
| (int(pt_down_device_to_ofp_1) + |
| int(pt_down_device_to_ofp_2) + |
| int(pt_down_device_to_ofp_3)) / 3 |
| |
| if pt_down_graph_to_ofp_avg > down_threshold_min and \ |
| pt_down_graph_to_ofp_avg < down_threshold_max: |
| port_down_graph_to_ofp_list.append( |
| pt_down_graph_to_ofp_avg) |
| main.log.info("Port down: graph to ofp avg: "+ |
| str(pt_down_graph_to_ofp_avg) + " ms") |
| else: |
| main.log.info("Average port down graph-to-ofp result" + |
| " exceeded the threshold: "+ |
| str(pt_down_graph_to_ofp_avg)) |
| |
| if pt_down_device_to_ofp_avg > 0 and \ |
| pt_down_device_to_ofp_avg < 1000: |
| port_down_device_to_ofp_list.append( |
| pt_down_device_to_ofp_avg) |
| main.log.info("Port down: device to ofp avg: "+ |
| str(pt_down_device_to_ofp_avg) + " ms") |
| else: |
| main.log.info("Average port down device-to-ofp result" + |
| " exceeded the threshold: "+ |
| str(pt_down_device_to_ofp_avg)) |
| |
| #Port up events |
| main.step("Enable port and obtain timestamp") |
| main.step("Starting wireshark capture for port status up") |
| main.ONOS1.tshark_grep(tshark_port_status, tshark_port_up) |
| time.sleep(5) |
| |
| main.Mininet1.handle.sendline("sh ifconfig "+ |
| interface_config+" up") |
| main.Mininet1.handle.expect("mininet>") |
| |
| #Allow time for tshark to capture event |
| time.sleep(3) |
| main.ONOS1.tshark_stop() |
| |
| #Obtain metrics shortly afterwards |
| #This timestsamp captures |
| #the epoch time at which the topology graph was updated. |
| main.step("Obtain t1 by REST call") |
| json_str_up_1 = main.ONOS1cli.topology_events_metrics() |
| json_str_up_2 = main.ONOS2cli.topology_events_metrics() |
| json_str_up_3 = main.ONOS3cli.topology_events_metrics() |
| |
| json_obj_1 = json.loads(json_str_up_1) |
| json_obj_2 = json.loads(json_str_up_2) |
| json_obj_3 = json.loads(json_str_up_3) |
| |
| os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+ |
| tshark_port_up+" /tmp/") |
| |
| f_port_up = open(tshark_port_up, 'r') |
| f_line = f_port_up.readline() |
| obj_up = f_line.split(" ") |
| if len(f_line) > 0: |
| timestamp_begin_pt_up = int(float(obj_up[1])*1000) |
| main.log.info("Port up begin timestamp: "+ |
| str(timestamp_begin_pt_up)) |
| else: |
| main.log.info("Tshark output file returned unexpected"+ |
| " results.") |
| timestamp_begin_pt_up = 0 |
| |
| f_port_up.close() |
| |
| graph_timestamp_1 = \ |
| json_obj_1[graphTimestamp]['value'] |
| graph_timestamp_2 = \ |
| json_obj_2[graphTimestamp]['value'] |
| graph_timestamp_3 = \ |
| json_obj_3[graphTimestamp]['value'] |
| |
| #Obtain device timestamp. This timestamp captures |
| #the epoch time at which the device event happened |
| device_timestamp_1 = \ |
| json_obj_1[deviceTimestamp]['value'] |
| device_timestamp_2 = \ |
| json_obj_2[deviceTimestamp]['value'] |
| device_timestamp_3 = \ |
| json_obj_3[deviceTimestamp]['value'] |
| |
| #Get delta between graph event and OFP |
| pt_up_graph_to_ofp_1 = int(graph_timestamp_1) -\ |
| int(timestamp_begin_pt_up) |
| pt_up_graph_to_ofp_2 = int(graph_timestamp_2) -\ |
| int(timestamp_begin_pt_up) |
| pt_up_graph_to_ofp_3 = int(graph_timestamp_3) -\ |
| int(timestamp_begin_pt_up) |
| |
| #Get delta between device event and OFP |
| pt_up_device_to_ofp_1 = int(device_timestamp_1) -\ |
| int(timestamp_begin_pt_up) |
| pt_up_device_to_ofp_2 = int(device_timestamp_2) -\ |
| int(timestamp_begin_pt_up) |
| pt_up_device_to_ofp_3 = int(device_timestamp_3) -\ |
| int(timestamp_begin_pt_up) |
| |
| main.log.info("ONOS1 delta G2O: "+str(pt_up_graph_to_ofp_1)) |
| main.log.info("ONOS2 delta G2O: "+str(pt_up_graph_to_ofp_2)) |
| main.log.info("ONOS3 delta G2O: "+str(pt_up_graph_to_ofp_3)) |
| |
| main.log.info("ONOS1 delta D2O: "+str(pt_up_device_to_ofp_1)) |
| main.log.info("ONOS2 delta D2O: "+str(pt_up_device_to_ofp_2)) |
| main.log.info("ONOS3 delta D2O: "+str(pt_up_device_to_ofp_3)) |
| |
| pt_up_graph_to_ofp_avg = \ |
| (int(pt_up_graph_to_ofp_1) + |
| int(pt_up_graph_to_ofp_2) + |
| int(pt_up_graph_to_ofp_3)) / 3 |
| |
| pt_up_device_to_ofp_avg = \ |
| (int(pt_up_device_to_ofp_1) + |
| int(pt_up_device_to_ofp_2) + |
| int(pt_up_device_to_ofp_3)) / 3 |
| |
| if pt_up_graph_to_ofp_avg > up_threshold_min and \ |
| pt_up_graph_to_ofp_avg < up_threshold_max: |
| port_up_graph_to_ofp_list.append( |
| pt_up_graph_to_ofp_avg) |
| main.log.info("Port down: graph to ofp avg: "+ |
| str(pt_up_graph_to_ofp_avg) + " ms") |
| else: |
| main.log.info("Average port up graph-to-ofp result"+ |
| " exceeded the threshold: "+ |
| str(pt_up_graph_to_ofp_avg)) |
| |
| if pt_up_device_to_ofp_avg > up_threshold_min and \ |
| pt_up_device_to_ofp_avg < up_threshold_max: |
| port_up_device_to_ofp_list.append( |
| pt_up_device_to_ofp_avg) |
| main.log.info("Port up: device to ofp avg: "+ |
| str(pt_up_device_to_ofp_avg) + " ms") |
| else: |
| main.log.info("Average port up device-to-ofp result"+ |
| " exceeded the threshold: "+ |
| str(pt_up_device_to_ofp_avg)) |
| |
| #END ITERATION FOR LOOP |
| |
| #Check all list for latency existence and set assertion |
| if (port_down_graph_to_ofp_list and port_down_device_to_ofp_list\ |
| and port_up_graph_to_ofp_list and port_up_device_to_ofp_list): |
| assertion = main.TRUE |
| |
| #Calculate and report latency measurements |
| port_down_graph_to_ofp_min = min(port_down_graph_to_ofp_list) |
| port_down_graph_to_ofp_max = max(port_down_graph_to_ofp_list) |
| port_down_graph_to_ofp_avg = \ |
| (sum(port_down_graph_to_ofp_list) / |
| len(port_down_graph_to_ofp_list)) |
| |
| main.log.report("Port down graph-to-ofp Min: "+ |
| str(port_down_graph_to_ofp_min)+" ms Max: "+ |
| str(port_down_graph_to_ofp_max)+" ms Avg: "+ |
| str(port_down_graph_to_ofp_avg)+" ms") |
| |
| port_down_device_to_ofp_min = min(port_down_device_to_ofp_list) |
| port_down_device_to_ofp_max = max(port_down_device_to_ofp_list) |
| port_down_device_to_ofp_avg = \ |
| (sum(port_down_device_to_ofp_list) /\ |
| len(port_down_device_to_ofp_list)) |
| |
| main.log.report("Port down device-to-ofp Min: "+ |
| str(port_down_device_to_ofp_min)+" ms Max: "+ |
| str(port_down_device_to_ofp_max)+" ms Avg: "+ |
| str(port_down_device_to_ofp_avg)+" ms") |
| |
| port_up_graph_to_ofp_min = min(port_up_graph_to_ofp_list) |
| port_up_graph_to_ofp_max = max(port_up_graph_to_ofp_list) |
| port_up_graph_to_ofp_avg = \ |
| (sum(port_up_graph_to_ofp_list) /\ |
| len(port_up_graph_to_ofp_list)) |
| |
| main.log.report("Port up graph-to-ofp Min: "+ |
| str(port_up_graph_to_ofp_min)+" ms Max: "+ |
| str(port_up_graph_to_ofp_max)+" ms Avg: "+ |
| str(port_up_graph_to_ofp_avg)+" ms") |
| |
| port_up_device_to_ofp_min = min(port_up_device_to_ofp_list) |
| port_up_device_to_ofp_max = max(port_up_device_to_ofp_list) |
| port_up_device_to_ofp_avg = \ |
| (sum(port_up_device_to_ofp_list) /\ |
| len(port_up_device_to_ofp_list)) |
| |
| main.log.report("Port up device-to-ofp Min: "+ |
| str(port_up_device_to_ofp_min)+" ms Max: "+ |
| str(port_up_device_to_ofp_max)+" ms Avg: "+ |
| str(port_up_device_to_ofp_avg)+" ms") |
| |
| utilities.assert_equals(expect=main.TRUE, actual=assertion, |
| onpass="Port discovery latency calculation successful", |
| onfail="Port discovery test failed") |
| |
| def CASE4(self, main): |
| ''' |
| Link down event using loss rate 100% |
| |
| Important: |
| Use a simple 2 switch topology with 1 link between |
| the two switches. Ensure that mac addresses of the |
| switches are 1 / 2 respectively |
| ''' |
| import time |
| import subprocess |
| import os |
| import requests |
| import json |
| |
| ONOS1_ip = main.params['CTRL']['ip1'] |
| ONOS2_ip = main.params['CTRL']['ip2'] |
| ONOS3_ip = main.params['CTRL']['ip3'] |
| ONOS_user = main.params['CTRL']['user'] |
| |
| default_sw_port = main.params['CTRL']['port1'] |
| |
| #Number of iterations of case |
| num_iter = main.params['TEST']['numIter'] |
| |
| #Timestamp 'keys' for json metrics output. |
| #These are subject to change, hence moved into params |
| deviceTimestamp = main.params['JSON']['deviceTimestamp'] |
| linkTimestamp = main.params['JSON']['linkTimestamp'] |
| graphTimestamp = main.params['JSON']['graphTimestamp'] |
| |
| debug_mode = main.params['TEST']['debugMode'] |
| |
| local_time = time.strftime('%x %X') |
| local_time = local_time.replace("/","") |
| local_time = local_time.replace(" ","_") |
| local_time = local_time.replace(":","") |
| if debug_mode == 'on': |
| main.ONOS1.tshark_pcap("eth0", |
| "/tmp/link_lat_pcap_"+local_time) |
| |
| #Threshold for this test case |
| up_threshold_str = main.params['TEST']['linkUpThreshold'] |
| down_threshold_str = main.params['TEST']['linkDownThreshold'] |
| |
| up_threshold_obj = up_threshold_str.split(",") |
| down_threshold_obj = down_threshold_str.split(",") |
| |
| up_threshold_min = int(up_threshold_obj[0]) |
| up_threshold_max = int(up_threshold_obj[1]) |
| |
| down_threshold_min = int(down_threshold_obj[0]) |
| down_threshold_max = int(down_threshold_obj[1]) |
| |
| assertion = main.TRUE |
| #Link event timestamp to system time list |
| link_down_link_to_system_list = [] |
| link_up_link_to_system_list = [] |
| #Graph event timestamp to system time list |
| link_down_graph_to_system_list = [] |
| link_up_graph_to_system_list = [] |
| |
| main.log.report("Link up / down discovery latency between "+ |
| "two switches") |
| main.log.report("Simulated by setting loss-rate 100%") |
| main.log.report("'tc qdisc add dev <intfs> root netem loss 100%'") |
| main.log.report("Total iterations of test: "+str(num_iter)) |
| |
| main.step("Assign all switches") |
| main.Mininet1.assign_sw_controller(sw="1", |
| ip1=ONOS1_ip, port1=default_sw_port) |
| main.Mininet1.assign_sw_controller(sw="2", |
| ip1=ONOS1_ip, port1=default_sw_port) |
| |
| main.step("Verifying switch assignment") |
| result_s1 = main.Mininet1.get_sw_controller(sw="s1") |
| result_s2 = main.Mininet1.get_sw_controller(sw="s2") |
| |
| #Allow time for events to finish before taking measurements |
| time.sleep(10) |
| |
| link_down1 = False |
| link_down2 = False |
| link_down3 = False |
| #Start iteration of link event test |
| for i in range(0, int(num_iter)): |
| main.step("Getting initial system time as t0") |
| |
| timestamp_link_down_t0 = time.time() * 1000 |
| #Link down is simulated by 100% loss rate using traffic |
| #control command |
| main.Mininet1.handle.sendline( |
| "sh tc qdisc add dev s1-eth1 root netem loss 100%") |
| |
| #TODO: Iterate through 'links' command to verify that |
| # link s1 -> s2 went down (loop timeout 30 seconds) |
| # on all 3 ONOS instances |
| main.log.info("Checking ONOS for link update") |
| loop_count = 0 |
| while( not (link_down1 and link_down2 and link_down3)\ |
| and loop_count < 30 ): |
| json_str1 = main.ONOS1cli.links() |
| json_str2 = main.ONOS2cli.links() |
| json_str3 = main.ONOS3cli.links() |
| |
| if not (json_str1 and json_str2 and json_str3): |
| main.log.error("CLI command returned error ") |
| break |
| else: |
| json_obj1 = json.loads(json_str1) |
| json_obj2 = json.loads(json_str2) |
| json_obj3 = json.loads(json_str3) |
| for obj1 in json_obj1: |
| if '01' not in obj1['src']['device']: |
| link_down1 = True |
| main.log.info("Link down from "+ |
| "s1 -> s2 on ONOS1 detected") |
| for obj2 in json_obj2: |
| if '01' not in obj2['src']['device']: |
| link_down2 = True |
| main.log.info("Link down from "+ |
| "s1 -> s2 on ONOS2 detected") |
| for obj3 in json_obj3: |
| if '01' not in obj3['src']['device']: |
| link_down3 = True |
| main.log.info("Link down from "+ |
| "s1 -> s2 on ONOS3 detected") |
| |
| loop_count += 1 |
| #If CLI doesn't like the continuous requests |
| #and exits in this loop, increase the sleep here. |
| #Consequently, while loop timeout will increase |
| time.sleep(1) |
| |
| #Give time for metrics measurement to catch up |
| #NOTE: May need to be configured more accurately |
| time.sleep(10) |
| #If we exited the while loop and link down 1,2,3 are still |
| #false, then ONOS has failed to discover link down event |
| if not (link_down1 and link_down2 and link_down3): |
| main.log.info("Link down discovery failed") |
| |
| link_down_lat_graph1 = 0 |
| link_down_lat_graph2 = 0 |
| link_down_lat_graph3 = 0 |
| link_down_lat_device1 = 0 |
| link_down_lat_device2 = 0 |
| link_down_lat_device3 = 0 |
| |
| assertion = main.FALSE |
| else: |
| json_topo_metrics_1 =\ |
| main.ONOS1cli.topology_events_metrics() |
| json_topo_metrics_2 =\ |
| main.ONOS2cli.topology_events_metrics() |
| json_topo_metrics_3 =\ |
| main.ONOS3cli.topology_events_metrics() |
| json_topo_metrics_1 = json.loads(json_topo_metrics_1) |
| json_topo_metrics_2 = json.loads(json_topo_metrics_2) |
| json_topo_metrics_3 = json.loads(json_topo_metrics_3) |
| |
| main.log.info("Obtaining graph and device timestamp") |
| graph_timestamp_1 = \ |
| json_topo_metrics_1[graphTimestamp]['value'] |
| graph_timestamp_2 = \ |
| json_topo_metrics_2[graphTimestamp]['value'] |
| graph_timestamp_3 = \ |
| json_topo_metrics_3[graphTimestamp]['value'] |
| |
| link_timestamp_1 = \ |
| json_topo_metrics_1[linkTimestamp]['value'] |
| link_timestamp_2 = \ |
| json_topo_metrics_2[linkTimestamp]['value'] |
| link_timestamp_3 = \ |
| json_topo_metrics_3[linkTimestamp]['value'] |
| |
| if graph_timestamp_1 and graph_timestamp_2 and\ |
| graph_timestamp_3 and link_timestamp_1 and\ |
| link_timestamp_2 and link_timestamp_3: |
| link_down_lat_graph1 = int(graph_timestamp_1) -\ |
| timestamp_link_down_t0 |
| link_down_lat_graph2 = int(graph_timestamp_2) -\ |
| timestamp_link_down_t0 |
| link_down_lat_graph3 = int(graph_timestamp_3) -\ |
| timestamp_link_down_t0 |
| |
| link_down_lat_link1 = int(link_timestamp_1) -\ |
| timestamp_link_down_t0 |
| link_down_lat_link2 = int(link_timestamp_2) -\ |
| timestamp_link_down_t0 |
| link_down_lat_link3 = int(link_timestamp_3) -\ |
| timestamp_link_down_t0 |
| else: |
| main.log.error("There was an error calculating"+ |
| " the delta for link down event") |
| link_down_lat_graph1 = 0 |
| link_down_lat_graph2 = 0 |
| link_down_lat_graph3 = 0 |
| |
| link_down_lat_device1 = 0 |
| link_down_lat_device2 = 0 |
| link_down_lat_device3 = 0 |
| |
| main.log.info("Link down latency ONOS1 iteration "+ |
| str(i)+" (end-to-end): "+ |
| str(link_down_lat_graph1)+" ms") |
| main.log.info("Link down latency ONOS2 iteration "+ |
| str(i)+" (end-to-end): "+ |
| str(link_down_lat_graph2)+" ms") |
| main.log.info("Link down latency ONOS3 iteration "+ |
| str(i)+" (end-to-end): "+ |
| str(link_down_lat_graph3)+" ms") |
| |
| main.log.info("Link down latency ONOS1 iteration "+ |
| str(i)+" (link-event-to-system-timestamp): "+ |
| str(link_down_lat_link1)+" ms") |
| main.log.info("Link down latency ONOS2 iteration "+ |
| str(i)+" (link-event-to-system-timestamp): "+ |
| str(link_down_lat_link2)+" ms") |
| main.log.info("Link down latency ONOS3 iteration "+ |
| str(i)+" (link-event-to-system-timestamp): "+ |
| str(link_down_lat_link3)) |
| |
| #Calculate avg of node calculations |
| link_down_lat_graph_avg =\ |
| (link_down_lat_graph1 + |
| link_down_lat_graph2 + |
| link_down_lat_graph3) / 3 |
| link_down_lat_link_avg =\ |
| (link_down_lat_link1 + |
| link_down_lat_link2 + |
| link_down_lat_link3) / 3 |
| |
| #Set threshold and append latency to list |
| if link_down_lat_graph_avg > down_threshold_min and\ |
| link_down_lat_graph_avg < down_threshold_max: |
| link_down_graph_to_system_list.append( |
| link_down_lat_graph_avg) |
| else: |
| main.log.info("Link down latency exceeded threshold") |
| main.log.info("Results for iteration "+str(i)+ |
| "have been omitted") |
| if link_down_lat_link_avg > down_threshold_min and\ |
| link_down_lat_link_avg < down_threshold_max: |
| link_down_link_to_system_list.append( |
| link_down_lat_link_avg) |
| else: |
| main.log.info("Link down latency exceeded threshold") |
| main.log.info("Results for iteration "+str(i)+ |
| "have been omitted") |
| |
| #NOTE: To remove loss rate and measure latency: |
| # 'sh tc qdisc del dev s1-eth1 root' |
| timestamp_link_up_t0 = time.time() * 1000 |
| main.Mininet1.handle.sendline("sh tc qdisc del dev "+ |
| "s1-eth1 root") |
| main.Mininet1.handle.expect("mininet>") |
| |
| main.log.info("Checking ONOS for link update") |
| |
| link_down1 = True |
| link_down2 = True |
| link_down3 = True |
| loop_count = 0 |
| while( (link_down1 and link_down2 and link_down3)\ |
| and loop_count < 30 ): |
| json_str1 = main.ONOS1cli.links() |
| json_str2 = main.ONOS2cli.links() |
| json_str3 = main.ONOS3cli.links() |
| if not (json_str1 and json_str2 and json_str3): |
| main.log.error("CLI command returned error ") |
| break |
| else: |
| json_obj1 = json.loads(json_str1) |
| json_obj2 = json.loads(json_str2) |
| json_obj3 = json.loads(json_str3) |
| |
| for obj1 in json_obj1: |
| if '01' in obj1['src']['device']: |
| link_down1 = False |
| main.log.info("Link up from "+ |
| "s1 -> s2 on ONOS1 detected") |
| for obj2 in json_obj2: |
| if '01' in obj2['src']['device']: |
| link_down2 = False |
| main.log.info("Link up from "+ |
| "s1 -> s2 on ONOS2 detected") |
| for obj3 in json_obj3: |
| if '01' in obj3['src']['device']: |
| link_down3 = False |
| main.log.info("Link up from "+ |
| "s1 -> s2 on ONOS3 detected") |
| |
| loop_count += 1 |
| time.sleep(1) |
| |
| if (link_down1 and link_down2 and link_down3): |
| main.log.info("Link up discovery failed") |
| |
| link_up_lat_graph1 = 0 |
| link_up_lat_graph2 = 0 |
| link_up_lat_graph3 = 0 |
| link_up_lat_device1 = 0 |
| link_up_lat_device2 = 0 |
| link_up_lat_device3 = 0 |
| |
| assertion = main.FALSE |
| else: |
| json_topo_metrics_1 =\ |
| main.ONOS1cli.topology_events_metrics() |
| json_topo_metrics_2 =\ |
| main.ONOS2cli.topology_events_metrics() |
| json_topo_metrics_3 =\ |
| main.ONOS3cli.topology_events_metrics() |
| json_topo_metrics_1 = json.loads(json_topo_metrics_1) |
| json_topo_metrics_2 = json.loads(json_topo_metrics_2) |
| json_topo_metrics_3 = json.loads(json_topo_metrics_3) |
| |
| main.log.info("Obtaining graph and device timestamp") |
| graph_timestamp_1 = \ |
| json_topo_metrics_1[graphTimestamp]['value'] |
| graph_timestamp_2 = \ |
| json_topo_metrics_2[graphTimestamp]['value'] |
| graph_timestamp_3 = \ |
| json_topo_metrics_3[graphTimestamp]['value'] |
| |
| link_timestamp_1 = \ |
| json_topo_metrics_1[linkTimestamp]['value'] |
| link_timestamp_2 = \ |
| json_topo_metrics_2[linkTimestamp]['value'] |
| link_timestamp_3 = \ |
| json_topo_metrics_3[linkTimestamp]['value'] |
| |
| if graph_timestamp_1 and graph_timestamp_2 and\ |
| graph_timestamp_3 and link_timestamp_1 and\ |
| link_timestamp_2 and link_timestamp_3: |
| link_up_lat_graph1 = int(graph_timestamp_1) -\ |
| timestamp_link_up_t0 |
| link_up_lat_graph2 = int(graph_timestamp_2) -\ |
| timestamp_link_up_t0 |
| link_up_lat_graph3 = int(graph_timestamp_3) -\ |
| timestamp_link_up_t0 |
| |
| link_up_lat_link1 = int(link_timestamp_1) -\ |
| timestamp_link_up_t0 |
| link_up_lat_link2 = int(link_timestamp_2) -\ |
| timestamp_link_up_t0 |
| link_up_lat_link3 = int(link_timestamp_3) -\ |
| timestamp_link_up_t0 |
| else: |
| main.log.error("There was an error calculating"+ |
| " the delta for link down event") |
| link_up_lat_graph1 = 0 |
| link_up_lat_graph2 = 0 |
| link_up_lat_graph3 = 0 |
| |
| link_up_lat_device1 = 0 |
| link_up_lat_device2 = 0 |
| link_up_lat_device3 = 0 |
| |
| if debug_mode == 'on': |
| main.log.info("Link up latency ONOS1 iteration "+ |
| str(i)+" (end-to-end): "+ |
| str(link_up_lat_graph1)+" ms") |
| main.log.info("Link up latency ONOS2 iteration "+ |
| str(i)+" (end-to-end): "+ |
| str(link_up_lat_graph2)+" ms") |
| main.log.info("Link up latency ONOS3 iteration "+ |
| str(i)+" (end-to-end): "+ |
| str(link_up_lat_graph3)+" ms") |
| |
| main.log.info("Link up latency ONOS1 iteration "+ |
| str(i)+" (link-event-to-system-timestamp): "+ |
| str(link_up_lat_link1)+" ms") |
| main.log.info("Link up latency ONOS2 iteration "+ |
| str(i)+" (link-event-to-system-timestamp): "+ |
| str(link_up_lat_link2)+" ms") |
| main.log.info("Link up latency ONOS3 iteration "+ |
| str(i)+" (link-event-to-system-timestamp): "+ |
| str(link_up_lat_link3)) |
| |
| #Calculate avg of node calculations |
| link_up_lat_graph_avg =\ |
| (link_up_lat_graph1 + |
| link_up_lat_graph2 + |
| link_up_lat_graph3) / 3 |
| link_up_lat_link_avg =\ |
| (link_up_lat_link1 + |
| link_up_lat_link2 + |
| link_up_lat_link3) / 3 |
| |
| #Set threshold and append latency to list |
| if link_up_lat_graph_avg > up_threshold_min and\ |
| link_up_lat_graph_avg < up_threshold_max: |
| link_up_graph_to_system_list.append( |
| link_up_lat_graph_avg) |
| else: |
| main.log.info("Link up latency exceeded threshold") |
| main.log.info("Results for iteration "+str(i)+ |
| "have been omitted") |
| if link_up_lat_link_avg > up_threshold_min and\ |
| link_up_lat_link_avg < up_threshold_max: |
| link_up_link_to_system_list.append( |
| link_up_lat_link_avg) |
| else: |
| main.log.info("Link up latency exceeded threshold") |
| main.log.info("Results for iteration "+str(i)+ |
| "have been omitted") |
| |
| #Calculate min, max, avg of list and report |
| link_down_min = min(link_down_graph_to_system_list) |
| link_down_max = max(link_down_graph_to_system_list) |
| link_down_avg = sum(link_down_graph_to_system_list) / \ |
| len(link_down_graph_to_system_list) |
| link_up_min = min(link_up_graph_to_system_list) |
| link_up_max = max(link_up_graph_to_system_list) |
| link_up_avg = sum(link_up_graph_to_system_list) / \ |
| len(link_up_graph_to_system_list) |
| |
| main.log.report("Link down latency - Min: "+ |
| str(link_down_min)+" ms Max: "+ |
| str(link_down_max)+" ms Avg: "+ |
| str(link_down_avg)+" ms") |
| main.log.report("Link up latency - Min: "+ |
| str(link_up_min)+" ms Max: "+ |
| str(link_up_max)+" ms Avg: "+ |
| str(link_up_avg)+" ms") |
| |
| utilities.assert_equals(expect=main.TRUE, actual=assertion, |
| onpass="Link discovery latency calculation successful", |
| onfail="Link discovery latency case failed") |
| |
| def CASE5(self, main): |
| ''' |
| 100 Switch discovery latency |
| |
| Important: |
| This test case can be potentially dangerous if |
| your machine has previously set iptables rules. |
| One of the steps of the test case will flush |
| all existing iptables rules. |
| Note: |
| You can specify the number of switches in the |
| params file to adjust the switch discovery size |
| (and specify the corresponding topology in Mininet1 |
| .topo file) |
| ''' |
| import time |
| import subprocess |
| import os |
| import requests |
| import json |
| |
| ONOS1_ip = main.params['CTRL']['ip1'] |
| ONOS2_ip = main.params['CTRL']['ip2'] |
| ONOS3_ip = main.params['CTRL']['ip3'] |
| MN1_ip = main.params['MN']['ip1'] |
| ONOS_user = main.params['CTRL']['user'] |
| |
| default_sw_port = main.params['CTRL']['port1'] |
| |
| #Number of iterations of case |
| num_iter = main.params['TEST']['numIter'] |
| num_sw = main.params['TEST']['numSwitch'] |
| |
| #Timestamp 'keys' for json metrics output. |
| #These are subject to change, hence moved into params |
| deviceTimestamp = main.params['JSON']['deviceTimestamp'] |
| graphTimestamp = main.params['JSON']['graphTimestamp'] |
| |
| debug_mode = main.params['TEST']['debugMode'] |
| |
| local_time = time.strftime('%X') |
| local_time = local_time.replace("/","") |
| local_time = local_time.replace(" ","_") |
| local_time = local_time.replace(":","") |
| if debug_mode == 'on': |
| main.ONOS1.tshark_pcap("eth0", |
| "/tmp/100_sw_lat_pcap_"+local_time) |
| |
| #Threshold for this test case |
| sw_disc_threshold_str = main.params['TEST']['swDisc100Threshold'] |
| sw_disc_threshold_obj = sw_disc_threshold_str.split(",") |
| sw_disc_threshold_min = int(sw_disc_threshold_obj[0]) |
| sw_disc_threshold_max = int(sw_disc_threshold_obj[1]) |
| |
| tshark_ofp_output = "/tmp/tshark_ofp_"+num_sw+"sw.txt" |
| tshark_tcp_output = "/tmp/tshark_tcp_"+num_sw+"sw.txt" |
| |
| tshark_ofp_result_list = [] |
| tshark_tcp_result_list = [] |
| |
| sw_discovery_lat_list = [] |
| |
| main.case(num_sw+" Switch discovery latency") |
| main.step("Assigning all switches to ONOS1") |
| for i in range(1, int(num_sw)+1): |
| main.Mininet1.assign_sw_controller( |
| sw=str(i), |
| ip1=ONOS1_ip, |
| port1=default_sw_port) |
| |
| #Ensure that nodes are configured with ptpd |
| #Just a warning message |
| main.log.info("Please check ptpd configuration to ensure"+\ |
| " All nodes' system times are in sync") |
| time.sleep(5) |
| |
| for i in range(0, int(num_iter)): |
| |
| main.step("Set iptables rule to block incoming sw connections") |
| #Set iptables rule to block incoming switch connections |
| #The rule description is as follows: |
| # Append to INPUT rule, |
| # behavior DROP that matches following: |
| # * packet type: tcp |
| # * source IP: MN1_ip |
| # * destination PORT: 6633 |
| main.ONOS1.handle.sendline( |
| "sudo iptables -A INPUT -p tcp -s "+MN1_ip+ |
| " --dport "+default_sw_port+" -j DROP") |
| main.ONOS1.handle.expect("\$") |
| # Append to OUTPUT rule, |
| # behavior DROP that matches following: |
| # * packet type: tcp |
| # * source IP: MN1_ip |
| # * destination PORT: 6633 |
| main.ONOS1.handle.sendline( |
| "sudo iptables -A OUTPUT -p tcp -s "+MN1_ip+ |
| " --dport "+default_sw_port+" -j DROP") |
| main.ONOS1.handle.expect("\$") |
| #Give time to allow rule to take effect |
| #NOTE: Sleep period may need to be configured |
| # based on the number of switches in the topology |
| main.log.info("Please wait for switch connection to "+ |
| "time out") |
| time.sleep(60) |
| |
| #Gather vendor OFP with tshark |
| main.ONOS1.tshark_grep("OFP 86 Vendor", |
| tshark_ofp_output) |
| main.ONOS1.tshark_grep("TCP 74 ", |
| tshark_tcp_output) |
| |
| #NOTE: Remove all iptables rule quickly (flush) |
| # Before removal, obtain TestON timestamp at which |
| # removal took place |
| # (ensuring nodes are configured via ptp) |
| # sudo iptables -F |
| |
| t0_system = time.time() * 1000 |
| main.ONOS1.handle.sendline( |
| "sudo iptables -F") |
| |
| #Counter to track loop count |
| counter_loop = 0 |
| counter_avail1 = 0 |
| counter_avail2 = 0 |
| counter_avail3 = 0 |
| onos1_dev = False |
| onos2_dev = False |
| onos3_dev = False |
| while counter_loop < 60: |
| #Continue to check devices for all device |
| #availability. When all devices in all 3 |
| #ONOS instances indicate that devices are available |
| #obtain graph event timestamp for t1. |
| device_str_obj1 = main.ONOS1cli.devices() |
| device_str_obj2 = main.ONOS2cli.devices() |
| device_str_obj3 = main.ONOS3cli.devices() |
| |
| device_json1 = json.loads(device_str_obj1) |
| device_json2 = json.loads(device_str_obj2) |
| device_json3 = json.loads(device_str_obj3) |
| |
| for device1 in device_json1: |
| if device1['available'] == True: |
| counter_avail1 += 1 |
| if counter_avail1 == int(num_sw): |
| onos1_dev = True |
| main.log.info("All devices have been "+ |
| "discovered on ONOS1") |
| else: |
| counter_avail1 = 0 |
| for device2 in device_json2: |
| if device2['available'] == True: |
| counter_avail2 += 1 |
| if counter_avail2 == int(num_sw): |
| onos2_dev = True |
| main.log.info("All devices have been "+ |
| "discovered on ONOS2") |
| else: |
| counter_avail2 = 0 |
| for device3 in device_json3: |
| if device3['available'] == True: |
| counter_avail3 += 1 |
| if counter_avail3 == int(num_sw): |
| onos3_dev = True |
| main.log.info("All devices have been "+ |
| "discovered on ONOS3") |
| else: |
| counter_avail3 = 0 |
| |
| if onos1_dev and onos2_dev and onos3_dev: |
| main.log.info("All devices have been discovered "+ |
| "on all ONOS instances") |
| json_str_topology_metrics_1 =\ |
| main.ONOS1cli.topology_events_metrics() |
| json_str_topology_metrics_2 =\ |
| main.ONOS2cli.topology_events_metrics() |
| json_str_topology_metrics_3 =\ |
| main.ONOS3cli.topology_events_metrics() |
| |
| #Exit while loop if all devices discovered |
| break |
| |
| counter_loop += 1 |
| #Give some time in between CLI calls |
| #(will not affect measurement) |
| time.sleep(3) |
| |
| main.ONOS1.tshark_stop() |
| |
| os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+ |
| tshark_ofp_output+" /tmp/") |
| os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+ |
| tshark_tcp_output+" /tmp/") |
| |
| #TODO: Automate OFP output analysis |
| #Debug mode - print out packets captured at runtime |
| if debug_mode == 'on': |
| ofp_file = open(tshark_ofp_output, 'r') |
| main.log.info("Tshark OFP Vendor output: ") |
| for line in ofp_file: |
| tshark_ofp_result_list.append(line) |
| main.log.info(line) |
| ofp_file.close() |
| |
| tcp_file = open(tshark_tcp_output, 'r') |
| main.log.info("Tshark TCP 74 output: ") |
| for line in tcp_file: |
| tshark_tcp_result_list.append(line) |
| main.log.info(line) |
| tcp_file.close() |
| |
| json_obj_1 = json.loads(json_str_topology_metrics_1) |
| json_obj_2 = json.loads(json_str_topology_metrics_2) |
| json_obj_3 = json.loads(json_str_topology_metrics_3) |
| |
| graph_timestamp_1 = \ |
| json_obj_1[graphTimestamp]['value'] |
| graph_timestamp_2 = \ |
| json_obj_2[graphTimestamp]['value'] |
| graph_timestamp_3 = \ |
| json_obj_3[graphTimestamp]['value'] |
| |
| graph_lat_1 = int(graph_timestamp_1) - int(t0_system) |
| graph_lat_2 = int(graph_timestamp_2) - int(t0_system) |
| graph_lat_3 = int(graph_timestamp_3) - int(t0_system) |
| |
| avg_graph_lat = \ |
| (int(graph_lat_1) +\ |
| int(graph_lat_2) +\ |
| int(graph_lat_3)) / 3 |
| |
| if avg_graph_lat > sw_disc_threshold_min \ |
| and avg_graph_lat < sw_disc_threshold_max: |
| sw_discovery_lat_list.append( |
| avg_graph_lat) |
| else: |
| main.log.info("100 Switch discovery latency "+ |
| "exceeded the threshold.") |
| |
| #END ITERATION FOR LOOP |
| |
| sw_lat_min = min(sw_discovery_lat_list) |
| sw_lat_max = max(sw_discovery_lat_list) |
| sw_lat_avg = sum(sw_discovery_lat_list) /\ |
| len(sw_discovery_lat_list) |
| |
| main.log.report("100 Switch discovery lat "+\ |
| "Min: "+str(sw_lat_min)+" ms"+\ |
| "Max: "+str(sw_lat_max)+" ms"+\ |
| "Avg: "+str(sw_lat_avg)+" ms") |
| |
| |