from emulation_lib.emulation import Emulation
from emulation_lib.network_blocks.network_block import NetworkBlock
from emulation_lib.apps.udperf_app import UdperfApp
from emulation_lib.linkcmd_backends.l_ import L_
emu = Emulation("../example.config.py", [0, 1])
emu.setLinkCmdBackend(L_())
n0 = emu.getNode(0)
n1 = emu.getNode(1)
# http://dashif.org/wp-content/uploads/2015/04/DASH-AVC-264-Test-Vectors-v09-CommunityReview.pdf
nb1 = NetworkBlock("./blocks/flicflac")
nb1.setNodes([n0, n1])
nb1.selectInterval(1000)
emu.addNetworkBlocks([nb1])
udperf_app = UdperfApp(n1, n0, 0.0, 12, 10000, 6000, 6001)
n1.addUserResult("/home/nfd/cmdScheduler.log",
"cmdSched" + str(n1.getId()) + ".log_%RUN%")
emu.setDuration(14)
emu.addApplications([udperf_app])
emu.setName('flicflac_loss')
emu.setOutputDirectory('./results/' + emu.getName())
emu.setNumberOfRuns(10)
emu.setSecondsBetweenRuns(5)
from emulation_lib.emulation import Emulation
from emulation_lib.network_blocks.network_block import NetworkBlock
from emulation_lib.apps.udperf_app import UdperfApp
from emulation_lib.linkcmd_backends.b_ import B_
# ==> n0
# |^|
# n1==> n2
# |v|
# ==> n3
emu = Emulation("../example.config.py", [0, 1, 2, 3])
emu.setLinkCmdBackend(B_())
n0 = emu.getNode(0)
n1 = emu.getNode(1)
n2 = emu.getNode(2)
n3 = emu.getNode(3)
nb1 = NetworkBlock("./blocks/symmetric")
nb1.setNodes([n0, n1])
nb1.selectInterval(1000)
nb2 = NetworkBlock("./blocks/symmetric")
nb2.setNodes([n2, n1])
nb2.selectInterval(1000)
nb3 = NetworkBlock("./blocks/symmetric")
nb3.setNodes([n3, n1])
nb3.selectInterval(1000)
emu.addNetworkBlocks([nb1, nb2, nb3])
node.scheduleUserCmd(constants.SETUP_TIME, "sudo killall wldrdaemon_udp")
node.scheduleUserCmd(constants.SETUP_TIME, "sudo killall tail")
# set up network-blocks
abileneNetwork = NetworkBlock("./blocks/abilene")
abileneNetwork.setNodes(emu.getNodes()[0:12])
abileneNetwork.selectInterval(1000) # without consequence as network-properties are static anyway (in this scenario)
abileneNetwork.addPreprocessingStep(RepeatIntermedFileUntil(EMULATION_DURATION, False))
network_blocks = []
# read topology from file
with open("./topologies/abilene.txt","r") as topologyFile:
topology = topologyFile.readlines()
groups = {emu.getNode(serverNode): []}
clientGatewayAssoc = {}
# add blocks for "last-miles"
for client_num in range(0, len(client_gateways)):
gateway_id = client_gateways[client_num]
client_id = 12 + client_num
groups[emu.getNode(serverNode)].append(emu.getNode(client_id))
print("server/client: " + str(serverNode) + "," + str(client_id))
clientGatewayAssoc[client_id] = emu.getNode(gateway_id)
wifiNetwork = NetworkBlock(wifi_block)
wifiNetwork.setNodes([emu.getNode(gateway_id), emu.getNode(client_id)]) # 2 nodes?
wifiNetwork.selectInterval(WIFI_EMU_CMD_INTERVAL)
# 10.000000 0 0 5522.400
# 11.000000 0 0 5632.848
# 12.000000 0 0 3522.064
# add the network block to the emulation
emu.addNetworkBlocks([wlan])
#
# configure the applications to be run
#
# Perform iperf bandwidth measurement (UDP) from client_node to server_node.
# Create a new application functional block, passing node references.
# This application block takes care of the application lifecycle (here starting/stopping an iperf UDP bandwidth test)
# as well as the collection of results.
# server, client, client_runtime[s], client_bandwidth[Mbps]
iperfApp = iperf_logapp.IperfLogApp(server=emu.getNode(0),
client=emu.getNode(1),
client_runtime=EMULATION_DURATION - 1,
client_bandwidth=100)
# add the application to the emulation object
emu.addApplications([iperfApp])
# schedule some arbitrary commands at three time points (second 0, 30 and 90 of the emulation)
for node in emu.getNodes():
node.scheduleUserCmd(0, "date > /home/nfd/cmdExample.txt")
node.scheduleUserCmd(30, "date >> /home/nfd/cmdExample.txt")
node.scheduleUserCmd(90, "date >> /home/nfd/cmdExample.txt")
# Fetch the files created by the previous commands, additionally fetch the logfiles of the command scheduler.
# addUserResult() adds a file to the emulation results that are to be fetched from the nodes.