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Merge pull request #388 from cdburkard/patches/intfOptions

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measure loss with udp iperf
This commit is contained in:
lantz
2014-09-25 14:16:26 -07:00
parent 61760eabc5 f0ce6f501d
commit 0efde9c4ed
2 changed files with 11 additions and 15 deletions
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examples/intfOptions.py
+4 -5
View File
@@ -13,7 +13,7 @@ from mininet.link import TCLink
def intfOptions(): def intfOptions():
"run various traffic control commands on a single interface" "run various traffic control commands on a single interface"
net = Mininet() net = Mininet( autoStaticArp=True )
net.addController( 'c0' ) net.addController( 'c0' )
h1 = net.addHost( 'h1' ) h1 = net.addHost( 'h1' )
h2 = net.addHost( 'h2' ) h2 = net.addHost( 'h2' )
@@ -32,13 +32,12 @@ def intfOptions():
info( '\n*** Configuring one intf with loss of 50%\n' ) info( '\n*** Configuring one intf with loss of 50%\n' )
link1.intf1.config( loss=50 ) link1.intf1.config( loss=50 )
info( '\n*** Running 20 pings to test\n' ) info( '\n' )
info( net.hosts[ 0 ].cmd( 'ping -c 20 -i .2 10.0.0.2' ) ) net.iperf( ( h1, h2 ), l4Type='UDP' )
info( '\n*** Configuring one intf with delay of 15ms\n' ) info( '\n*** Configuring one intf with delay of 15ms\n' )
link1.intf1.config( delay='15ms' ) link1.intf1.config( delay='15ms' )
info( '\n*** Run a ping to confirm delay' ) info( '\n*** Run a ping to confirm delay\n' )
net.pingPairFull() net.pingPairFull()
info( '\n*** Done testing\n' ) info( '\n*** Done testing\n' )
examples/test/test_intfOptions.py
+7 -10
View File
@@ -15,7 +15,7 @@ class testIntfOptions( unittest.TestCase ):
p = pexpect.spawn( 'python -m mininet.examples.intfOptions ' ) p = pexpect.spawn( 'python -m mininet.examples.intfOptions ' )
tolerance = .8 tolerance = .8
opts = [ "Results: \['([\d\.]+) .bits/sec", opts = [ "Results: \['([\d\.]+) .bits/sec",
"(\d+) packets transmitted, (\d+) received, (\d+)% packet loss, time (\d+)ms", "Results: \['10M', '([\d\.]+) .bits/sec",
"h(\d+)->h(\d+): (\d)/(\d), rtt min/avg/max/mdev ([\d\.]+)/([\d\.]+)/([\d\.]+)/([\d\.]+) ms", "h(\d+)->h(\d+): (\d)/(\d), rtt min/avg/max/mdev ([\d\.]+)/([\d\.]+)/([\d\.]+)/([\d\.]+) ms",
pexpect.EOF ] pexpect.EOF ]
while True: while True:
@@ -25,17 +25,14 @@ class testIntfOptions( unittest.TestCase ):
self.assertGreaterEqual( bw, float( 5 * tolerance ) ) self.assertGreaterEqual( bw, float( 5 * tolerance ) )
self.assertLessEqual( bw, float( 5 + 5 * ( 1 - tolerance ) ) ) self.assertLessEqual( bw, float( 5 + 5 * ( 1 - tolerance ) ) )
elif index == 1: elif index == 1:
loss = int( p.match.group( 3 ) ) BW = 10
msg = ( "testing packet loss at 50%\n", measuredBw = float( p.match.group( 1 ) )
"this test will sometimes fail\n", loss = ( measuredBw / BW ) * 100
"ran 20 pings accross network\n", self.assertGreaterEqual( loss, 50 * tolerance )
"packet loss is %d%%\n\n" self.assertLessEqual( loss, 50 + 50 * ( 1 - tolerance ) )
% loss )
self.assertGreaterEqual( loss, 50 * .8, msg )
self.assertLessEqual( loss, 50 + 50 * ( 1 - tolerance ), msg )
elif index == 2: elif index == 2:
delay = float( p.match.group( 6 ) ) delay = float( p.match.group( 6 ) )
self.assertGreaterEqual( delay, 15 * .8 ) self.assertGreaterEqual( delay, 15 * tolerance )
self.assertLessEqual( delay, 15 + 15 * ( 1 - tolerance ) ) self.assertLessEqual( delay, 15 + 15 * ( 1 - tolerance ) )
else: else:
break break