def myNet():
"Create network from scratch using Open vSwitch."
info( "*** Creating nodes\n" )
switch0 = Node( 's0', inNamespace=False )
h0 = Node( 'h0' )
h1 = Node( 'h1' )
h2 = Node( 'h2' )
info( "*** Creating links\n" )
Link( h0, switch0)
Link( h1, switch0)
Link( h2, switch0)
info( "*** Configuring hosts\n" )
h0.setIP( '192.168.123.1/24' )
h1.setIP( '192.168.123.2/24' )
h2.setIP( '192.168.123.3/24' )
info( "*** Starting network using Open vSwitch\n" )
switch0.cmd( 'ovs-vsctl del-br dp0' )
switch0.cmd( 'ovs-vsctl add-br dp0' )
for intf in switch0.intfs.values():
print intf
print switch0.cmd( 'ovs-vsctl add-port dp0 %s' % intf )
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
#switch0.cmd( 'ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633' )
print switch0.cmd(r'ovs-vsctl show')
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=1,in_port=1,actions=flood' )
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=1,in_port=2,actions=flood' )
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=1,in_port=3,actions=flood' )
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.1,actions=output:1' )
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,actions=output:2' )
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.3,actions=output:3')
#switch0.cmd('tcpdump -i s0-eth0 -U -w aaa &')
#h0.cmd('tcpdump -i h0-eth0 -U -w aaa &')
info( "*** Running test\n" )
h0.cmdPrint( 'ping -c 3 ' + h1.IP() )
h0.cmdPrint( 'ping -c 3 ' + h2.IP() )
#print switch0.cmd( 'ovs-ofctl show dp0' )
#print switch0.cmd( 'ovs-ofctl dump-tables dp0' )
#print switch0.cmd( 'ovs-ofctl dump-ports dp0' )
#print switch0.cmd( 'ovs-ofctl dump-flows dp0' )
#print switch0.cmd( 'ovs-ofctl dump-aggregate dp0' )
#print switch0.cmd( 'ovs-ofctl queue-stats dp0' )
info( "*** Stopping network\n" )
switch0.cmd( 'ovs-vsctl del-br dp0' )
switch0.deleteIntfs()
info( '\n' )
def scratchNet(cname='controller', cargs='-v ptcp:'):
"Create network from scratch using Open vSwitch."
info("*** Creating nodes\n")
controller = Node('c0', inNamespace=False)
switch0 = Node('s0', inNamespace=False)
h0 = Node('h0')
h1 = Node('h1')
info("*** Creating links\n")
Link(h0, switch0)
Link(h1, switch0)
info("*** Configuring hosts\n")
h0.setIP('192.168.123.1/24')
h1.setIP('192.168.123.2/24')
info(str(h0) + '\n')
info(str(h1) + '\n')
info("*** Starting network using Open vSwitch\n")
controller.cmd(cname + ' ' + cargs + '&')
switch0.cmd('ovs-vsctl del-br dp0')
switch0.cmd('ovs-vsctl add-br dp0')
for intf in switch0.intfs.values():
print intf
print switch0.cmd('ovs-vsctl add-port dp0 %s' % intf)
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
switch0.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
switch0.cmd('ovs-ofctl add-flow dp0 \"in_port=1 actions=output:2\"')
switch0.cmd('ovs-ofctl add-flow dp0 \"in_port=2 actions=output:1\"')
info('*** Waiting for switch to connect to controller')
while 'is_connected' not in quietRun('ovs-vsctl show'):
sleep(1)
info('.')
info('\n')
info("*** Running test\n")
h0.cmdPrint('ping -c3 ' + h1.IP())
h1.cmdPrint('ping -c3 ' + h0.IP())
info("*** Stopping network\n")
controller.cmd('kill %' + cname)
switch0.cmd('ovs-vsctl del-br dp0')
switch0.deleteIntfs()
info('\n')
def myNet(cname='controller', cargs='-v ptcp:'):
"Create network from scratch using Open vSwitch."
info( "*** Creating nodes\n" )
controller = Node( 'c0', inNamespace=False )
switch = Node( 's0', inNamespace=False )
h0 = Node( 'h0' )
h1 = Node( 'h1' )
h2 = Node( 'h2' )
info( "*** Creating links\n" )
linkopts0=dict(bw=100, delay='1ms', loss=0)
TCLink( h0, switch, **linkopts0)
TCLink( h1, switch, **linkopts0)
TCLink( h2, switch, **linkopts0)
info( "*** Configuring hosts\n" )
h0.setIP( '192.168.123.1/24' )
h1.setIP( '192.168.123.2/24' )
h2.setIP( '192.168.123.3/24' )
info( "*** Starting network using Open vSwitch\n" )
switch.cmd( 'ovs-vsctl del-br dp0' )
switch.cmd( 'ovs-vsctl add-br dp0' )
controller.cmd( cname + ' ' + cargs + '&' )
for intf in switch.intfs.values():
print intf
print switch.cmd( 'ovs-vsctl add-port dp0 %s' % intf )
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
switch.cmd( 'ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633' )
info( '*** Waiting for switch to connect to controller' )
while 'is_connected' not in quietRun( 'ovs-vsctl show' ):
sleep( 1 )
info( '.' )
info( '\n' )
#info( "*** Running test\n" )
h0.cmdPrint( 'ping -c 3 ' + h1.IP() )
h0.cmdPrint( 'ping -c 3 ' + h2.IP() )
h2.cmdPrint( 'ping -c 3 ' + h1.IP() )
info( "*** Stopping network\n" )
controller.cmd( 'kill %' + cname )
switch.cmd( 'ovs-vsctl del-br dp0' )
switch.deleteIntfs()
info( '\n' )
def scratchNetUser(cname='controller', cargs='ptcp:'):
"Create network from scratch using user switch."
# It's not strictly necessary for the controller and switches
# to be in separate namespaces. For performance, they probably
# should be in the root namespace. However, it's interesting to
# see how they could work even if they are in separate namespaces.
info('*** Creating Network\n')
controller = Node('c0')
switch = Node('s0')
h0 = Node('h0')
h1 = Node('h1')
cintf, sintf = createLink(controller, switch)
h0intf, sintf1 = createLink(h0, switch)
h1intf, sintf2 = createLink(h1, switch)
info('*** Configuring control network\n')
controller.setIP(cintf, '10.0.123.1', 24)
switch.setIP(sintf, '10.0.123.2', 24)
info('*** Configuring hosts\n')
h0.setIP(h0intf, '192.168.123.1', 24)
h1.setIP(h1intf, '192.168.123.2', 24)
info('*** Network state:\n')
for node in controller, switch, h0, h1:
info(str(node) + '\n')
info('*** Starting controller and user datapath\n')
controller.cmd(cname + ' ' + cargs + '&')
switch.cmd('ifconfig lo 127.0.0.1')
intfs = [sintf1, sintf2]
switch.cmd('ofdatapath -i ' + ','.join(intfs) + ' ptcp: &')
switch.cmd('ofprotocol tcp:' + controller.IP() + ' tcp:localhost &')
info('*** Running test\n')
h0.cmdPrint('ping -c1 ' + h1.IP())
info('*** Stopping network\n')
controller.cmd('kill %' + cname)
switch.cmd('kill %ofdatapath')
switch.cmd('kill %ofprotocol')
switch.deleteIntfs()
info('\n')
def scratchNetUser( cname='controller', cargs='ptcp:' ):
"Create network from scratch using user switch."
# It's not strictly necessary for the controller and switches
# to be in separate namespaces. For performance, they probably
# should be in the root namespace. However, it's interesting to
# see how they could work even if they are in separate namespaces.
info( '*** Creating Network\n' )
controller = Node( 'c0' )
switch = Node( 's0')
h0 = Node( 'h0' )
h1 = Node( 'h1' )
cintf, sintf = createLink( controller, switch )
h0intf, sintf1 = createLink( h0, switch )
h1intf, sintf2 = createLink( h1, switch )
info( '*** Configuring control network\n' )
controller.setIP( cintf, '10.0.123.1', 24 )
switch.setIP( sintf, '10.0.123.2', 24 )
info( '*** Configuring hosts\n' )
h0.setIP( h0intf, '192.168.123.1', 24 )
h1.setIP( h1intf, '192.168.123.2', 24 )
info( '*** Network state:\n' )
for node in controller, switch, h0, h1:
info( str( node ) + '\n' )
info( '*** Starting controller and user datapath\n' )
controller.cmd( cname + ' ' + cargs + '&' )
switch.cmd( 'ifconfig lo 127.0.0.1' )
intfs = [ sintf1, sintf2 ]
switch.cmd( 'ofdatapath -i ' + ','.join( intfs ) + ' ptcp: &' )
switch.cmd( 'ofprotocol tcp:' + controller.IP() + ' tcp:localhost &' )
info( '*** Running test\n' )
h0.cmdPrint( 'ping -c1 ' + h1.IP() )
info( '*** Stopping network\n' )
controller.cmd( 'kill %' + cname )
switch.cmd( 'kill %ofdatapath' )
switch.cmd( 'kill %ofprotocol' )
switch.deleteIntfs()
info( '\n' )
def scratchNet( cname='controller', cargs='-v ptcp:' ):
"Create network from scratch using Open vSwitch."
info( "*** Creating nodes\n" )
controller = Node( 'c0', inNamespace=False )
switch = Node( 's0', inNamespace=False )
h0 = Node( 'h0' )
h1 = Node( 'h1' )
info( "*** Creating links\n" )
Link( h0, switch )
Link( h1, switch )
info( "*** Configuring hosts\n" )
h0.setIP( '192.168.123.1/24' )
h1.setIP( '192.168.123.2/24' )
info( str( h0 ) + '\n' )
info( str( h1 ) + '\n' )
info( "*** Starting network using Open vSwitch\n" )
controller.cmd( cname + ' ' + cargs + '&' )
switch.cmd( 'ovs-vsctl del-br dp0' )
switch.cmd( 'ovs-vsctl add-br dp0' )
for intf in switch.intfs.values():
print switch.cmd( 'ovs-vsctl add-port dp0 %s' % intf )
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
switch.cmd( 'ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633' )
info( '*** Waiting for switch to connect to controller' )
while 'is_connected' not in quietRun( 'ovs-vsctl show' ):
sleep( 1 )
info( '.' )
info( '\n' )
info( "*** Running test\n" )
h0.cmdPrint( 'ping -c1 ' + h1.IP() )
info( "*** Stopping network\n" )
controller.cmd( 'kill %' + cname )
switch.cmd( 'ovs-vsctl del-br dp0' )
switch.deleteIntfs()
info( '\n' )
def scratchNet(cname="controller", cargs="-v ptcp:"):
"Create network from scratch using Open vSwitch."
info("*** Creating nodes\n")
controller = Node("c0", inNamespace=False)
switch = Node("s0", inNamespace=False)
h0 = Node("h0")
h1 = Node("h1")
info("*** Creating links\n")
Link(h0, switch)
Link(h1, switch)
info("*** Configuring hosts\n")
h0.setIP("192.168.123.1/24")
h1.setIP("192.168.123.2/24")
info(str(h0) + "\n")
info(str(h1) + "\n")
info("*** Starting network using Open vSwitch\n")
controller.cmd(cname + " " + cargs + "&")
switch.cmd("ovs-vsctl del-br dp0")
switch.cmd("ovs-vsctl add-br dp0")
for intf in switch.intfs.values():
print(switch.cmd("ovs-vsctl add-port dp0 %s" % intf))
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
switch.cmd("ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633")
info("*** Waiting for switch to connect to controller")
while "is_connected" not in quietRun("ovs-vsctl show"):
sleep(1)
info(".")
info("\n")
info("*** Running test\n")
h0.cmdPrint("ping -c1 " + h1.IP())
info("*** Stopping network\n")
controller.cmd("kill %" + cname)
switch.cmd("ovs-vsctl del-br dp0")
switch.deleteIntfs()
info("\n")
def scratchNet( cname='controller', cargs='ptcp:' ):
"Create network from scratch using kernel switch."
info( "*** Creating nodes\n" )
controller = Node( 'c0', inNamespace=False )
switch = Node( 's0', inNamespace=False )
h0 = Node( 'h0' )
h1 = Node( 'h1' )
info( "*** Creating links\n" )
createLink( node1=h0, node2=switch, port1=0, port2=0 )
createLink( node1=h1, node2=switch, port1=0, port2=1 )
info( "*** Configuring hosts\n" )
h0.setIP( h0.intfs[ 0 ], '192.168.123.1', 24 )
h1.setIP( h1.intfs[ 0 ], '192.168.123.2', 24 )
info( str( h0 ) + '\n' )
info( str( h1 ) + '\n' )
info( "*** Starting network using Open vSwitch kernel datapath\n" )
controller.cmd( cname + ' ' + cargs + '&' )
switch.cmd( 'ovs-dpctl del-dp dp0' )
switch.cmd( 'ovs-dpctl add-dp dp0' )
for intf in switch.intfs.values():
print switch.cmd( 'ovs-dpctl add-if dp0 ' + intf )
print switch.cmd( 'ovs-openflowd dp0 tcp:127.0.0.1 &' )
info( "*** Running test\n" )
h0.cmdPrint( 'ping -c1 ' + h1.IP() )
info( "*** Stopping network\n" )
controller.cmd( 'kill %' + cname )
switch.cmd( 'ovs-dpctl del-dp dp0' )
switch.cmd( 'kill %ovs-openflowd' )
switch.deleteIntfs()
info( '\n' )
def scratchNet(cname='controller', cargs='ptcp:'):
"Create network from scratch using kernel switch."
info("*** Creating nodes\n")
controller = Node('c0', inNamespace=False)
switch = Node('s0', inNamespace=False)
h0 = Node('h0')
h1 = Node('h1')
info("*** Creating links\n")
createLink(node1=h0, node2=switch, port1=0, port2=0)
createLink(node1=h1, node2=switch, port1=0, port2=1)
info("*** Configuring hosts\n")
h0.setIP(h0.intfs[0], '192.168.123.1', 24)
h1.setIP(h1.intfs[0], '192.168.123.2', 24)
info(str(h0) + '\n')
info(str(h1) + '\n')
info("*** Starting network using Open vSwitch kernel datapath\n")
controller.cmd(cname + ' ' + cargs + '&')
switch.cmd('ovs-dpctl del-dp dp0')
switch.cmd('ovs-dpctl add-dp dp0')
for intf in switch.intfs.values():
print switch.cmd('ovs-dpctl add-if dp0 ' + intf)
print switch.cmd('ovs-openflowd dp0 tcp:127.0.0.1 &')
info("*** Running test\n")
h0.cmdPrint('ping -c1 ' + h1.IP())
info("*** Stopping network\n")
controller.cmd('kill %' + cname)
switch.cmd('ovs-dpctl del-dp dp0')
switch.cmd('kill %ovs-openflowd')
switch.deleteIntfs()
info('\n')
def myNet(cname='controller', cargs='-v ptcp:'):
"Create network from scratch using Open vSwitch."
info( "*** Creating nodes\n" )
controller = Node( 'c0', inNamespace=False )
s0 = Node( 's0', inNamespace=False )
s1 = Node( 's1', inNamespace=False )
h0 = Node( 'h0' )
h1 = Node( 'h1' )
h2 = Node( 'h2' )
info( "*** Creating links..." )
linkopts0=dict(bw=10, delay='1ms', loss=0)
info( '\nLink h0-s0 | ' )
TCLink( h0, s0, **linkopts0)
info( '\nLink h1-s0 | ' )
TCLink( h1, s0, **linkopts0)
info( '\nLink s0-s1 | ' )
TCLink( s0, s1, **linkopts0)
info( '\nLink s1-h2 | ' )
TCLink( s1, h2, **linkopts0)
info( '\n' )
info( "*** Configuring hosts...\n" )
h0.setIP( '192.168.1.1/24' )
h1.setIP( '192.168.1.2/24' )
h2.setIP( '192.168.1.3/24' )
info( "*** Starting network using Open vSwitch...\n" )
s0.cmd( 'ovs-vsctl del-br s0' )
s0.cmd( 'ovs-vsctl add-br s0' )
s1.cmd( 'ovs-vsctl del-br s1' )
s1.cmd( 'ovs-vsctl add-br s1' )
controller.cmd( cname + ' ' + cargs + '&' )
for intf in s0.intfs.values():
print intf
print s0.cmd( 'ovs-vsctl add-port s0 %s' % intf )
for intf in s1.intfs.values():
print intf
print s1.cmd( 'ovs-vsctl add-port s1 %s' % intf )
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
info( '*** Connect to controller with tcp port...' )
s0.cmd( 'ovs-vsctl set-controller s0 tcp:127.0.0.1:6633' )
s1.cmd( 'ovs-vsctl set-controller s0 tcp:127.0.0.1:6633' )
info( '\n' )
info( '*** Waiting for switch to connect to controller..' )
while 'is_connected' not in quietRun( 'ovs-vsctl show' ):
sleep( 1 )
info( '.' )
info( 'connected!\n' )
#print s0.cmd('ovs-ofctl show dp0')
info( "*** Running test...\n" )
info( '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n' )
h0.cmdPrint( 'ping -c 2 ' + h2.IP() )
info( '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n' )
h1.cmdPrint( 'ping -c 2 ' + h2.IP() )
info( '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n' )
info( '*** Starting iperf Server...\n' )
h2.cmdPrint('iperf -s -i 1 > bandwidth_result &')
info( '*** Original link bandwidth testing...\n' )
print "iperf: h0--s0--s1--h2"
h0.cmdPrint('iperf -c 192.168.1.3 -t 15')
info( '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n' )
print "iperf: h1--s0--s1--h2"
h1.cmdPrint('iperf -c 192.168.1.3 -t 15')
info( '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n' )
print "!!! Limiting the bandwidth for flow entry [h0] -> [h2]"
s0.cmdPrint('ethtool -K s0-eth2 gro off')
s0.cmdPrint('tc qdisc del dev s0-eth2 root')
s0.cmdPrint('tc qdisc add dev s0-eth2 root handle 1: cbq avpkt 1000 bandwidth 10Mbit')
s0.cmdPrint('tc class add dev s0-eth2 parent 1: classid 1:1 cbq rate 512kbit allot 1500 prio 5 bounded isolated')
s0.cmdPrint('tc filter add dev s0-eth2 parent 1: protocol ip prio 16 u32 match ip src 192.168.1.1 flowid 1:1')
s0.cmdPrint('tc qdisc add dev s0-eth2 parent 1:1 sfq perturb 10')
info( '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~' )
info( '\n*** Limited link bandwidth testing...\n' )
print "iperf: h0--s0--s1--h2"
h0.cmdPrint('iperf -c 192.168.1.3 -t 15')
info( '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n' )
print "iperf: h1--s0--s1--h2"
h1.cmdPrint('iperf -c 192.168.1.3 -t 15')
info( '*** Done...\n' )
info( "*** Stopping network...\n" )
controller.cmd( 'kill %' + cname )
s0.cmd( 'ovs-vsctl del-br s0' )
s0.deleteIntfs()
s1.cmd( 'ovs-vsctl del-br s1' )
s1.deleteIntfs()
info( '\n' )
def myNet():
"Create network from scratch using Open vSwitch."
info( "*** Creating nodes\n" )
switch0 = Node( 's0', inNamespace=False )
switch1 = Node( 's1', inNamespace=False )
switch2 = Node( 's2', inNamespace=False )
switch3 = Node( 's3', inNamespace=False )
switch4 = Node( 's4', inNamespace=False )
h0 = Node( 'h0' )
h1 = Node( 'h1' )
info( "*** Creating links\n" )
linkopts0=dict(bw=100, delay='1ms', loss=0)
linkopts1=dict(bw=1, delay='100ms', loss=0)
linkopts2=dict(bw=10, delay='50ms', loss=0)
linkopts3=dict(bw=100, delay='1ms', loss=0)
link1=TCLink( h0, switch0, **linkopts0)
TCLink( switch0, switch1, **linkopts0)
TCLink( switch0, switch2, **linkopts0)
TCLink( switch0, switch3, **linkopts0)
TCLink( switch1, switch4,**linkopts1)
TCLink( switch2, switch4,**linkopts2)
TCLink( switch3, switch4,**linkopts3)
link2=TCLink( h1, switch4, **linkopts0)
info( "*** Configuring hosts\n" )
h0.setIP( '192.168.123.1/24' )
h1.setIP( '192.168.123.2/24' )
info( str( h0 ) + '\n' )
info( str( h1 ) + '\n' )
info( "*** Starting network using Open vSwitch\n" )
switch0.cmd( 'ovs-vsctl del-br dp0' )
switch0.cmd( 'ovs-vsctl add-br dp0' )
switch1.cmd( 'ovs-vsctl del-br dp1' )
switch1.cmd( 'ovs-vsctl add-br dp1' )
switch2.cmd( 'ovs-vsctl del-br dp2' )
switch2.cmd( 'ovs-vsctl add-br dp2' )
switch3.cmd( 'ovs-vsctl del-br dp3' )
switch3.cmd( 'ovs-vsctl add-br dp3' )
switch4.cmd( 'ovs-vsctl del-br dp4' )
switch4.cmd( 'ovs-vsctl add-br dp4' )
for intf in switch0.intfs.values():
print intf
print switch0.cmd( 'ovs-vsctl add-port dp0 %s' % intf )
for intf in switch1.intfs.values():
print intf
print switch1.cmd( 'ovs-vsctl add-port dp1 %s' % intf )
for intf in switch2.intfs.values():
print intf
print switch2.cmd( 'ovs-vsctl add-port dp2 %s' % intf )
for intf in switch3.intfs.values():
print intf
print switch3.cmd( 'ovs-vsctl add-port dp3 %s' % intf )
for intf in switch4.intfs.values():
print intf
print switch4.cmd( 'ovs-vsctl add-port dp4 %s' % intf )
print switch1.cmd(r'ovs-ofctl add-flow dp1 idle_timeout=0,priority=1,in_port=1,actions=flood' )
print switch1.cmd(r'ovs-ofctl add-flow dp1 idle_timeout=0,priority=1,in_port=1,actions=output:2' )
print switch1.cmd(r'ovs-ofctl add-flow dp1 idle_timeout=0,priority=1,in_port=2,actions=output:1' )
print switch2.cmd(r'ovs-ofctl add-flow dp2 idle_timeout=0,priority=1,in_port=1,actions=output:2' )
print switch2.cmd(r'ovs-ofctl add-flow dp2 idle_timeout=0,priority=1,in_port=2,actions=output:1' )
print switch3.cmd(r'ovs-ofctl add-flow dp3 idle_timeout=0,priority=1,in_port=1,actions=output:2' )
print switch3.cmd(r'ovs-ofctl add-flow dp3 idle_timeout=0,priority=1,in_port=2,actions=output:1' )
print switch4.cmd(r'ovs-ofctl add-flow dp4 idle_timeout=0,priority=1,in_port=1,actions=output:4' )
print switch4.cmd(r'ovs-ofctl add-flow dp4 idle_timeout=0,priority=1,in_port=2,actions=output:4' )
print switch4.cmd(r'ovs-ofctl add-flow dp4 idle_timeout=0,priority=1,in_port=3,actions=output:4' )
print switch4.cmd(r'ovs-ofctl add-flow dp4 idle_timeout=0,priority=1,in_port=4,actions=output:3' )
#print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,actions=output:4')
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,nw_tos=0x10,actions=output:2')
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,nw_tos=0x20,actions=output:3')
print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,nw_tos=0x30,actions=output:4')
#print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.1,actions=output:1')
#switch0.cmd('tcpdump -i s0-eth0 -U -w aaa &')
#h0.cmd('tcpdump -i h0-eth0 -U -w aaa &')
def cDelay1():
h1.cmdPrint('ethtool -K h1-eth0 gro off')
h1.cmdPrint('tc qdisc del dev h1-eth0 root')
h1.cmdPrint('tc qdisc add dev h1-eth0 root handle 10: netem delay 100ms')
def hello(a, b='4'):
print a
print b
#t=Timer(3.0, hello, args=('aaaa',),kwargs={'b':'7'})
t=Timer(5.0, cDelay1)
t.start()
info( "*** Running test\n" )
#h0.cmdPrint( 'ping -Q 0x10 -c 3 ' + h1.IP() )
#h0.cmdPrint( 'ping -Q 0x20 -c 3 ' + h1.IP() )
h0.cmdPrint( 'ping -Q 0x30 -c 10 ' + h1.IP() )
#link2.intf1.config(delay='100ms')
#h1.cmdPrint('ifconfig -a')
#h1.cmdPrint('tc qdisc show dev h1-eth0')
#h1.cmdPrint('ethtook -K h1-eth0 gro off')
#h1.cmdPrint('tc qdisc del dev h1-eth0 root')
#h1.cmdPrint('tc qdisc add dev h1-eth0 root handle 10: netem delay 100ms')
#h1.cmdPrint('ifconfig -a')
#h1.cmdPrint('tc qdisc show dev h1-eth0')
#h1.cmdPrint('tc -s qdisc ls dev h1-eth0')
#h0.cmdPrint( 'ping -Q 0x30 -c 5 ' + h1.IP() )
#print switch0.cmd( 'ovs-ofctl show dp0' )
#print switch1.cmd( 'ovs-ofctl show dp1' )
#print switch2.cmd( 'ovs-ofctl show dp2' )
#print switch3.cmd( 'ovs-ofctl show dp3' )
#print switch4.cmd( 'ovs-ofctl show dp4' )
#print switch0.cmd( 'ovs-ofctl dump-tables dp0' )
#print switch0.cmd( 'ovs-ofctl dump-ports dp0' )
#print switch0.cmd( 'ovs-ofctl dump-flows dp0' )
#print switch0.cmd( 'ovs-ofctl dump-aggregate dp0' )
#print switch0.cmd( 'ovs-ofctl queue-stats dp0' )
#print "Testing video transmission between h1 and h2"
#h1.cmd('./myrtg_svc -u > myrd &')
#h0.cmd('./mystg_svc -trace st 192.168.123.2')
info( "*** Stopping network\n" )
switch0.cmd( 'ovs-vsctl del-br dp0' )
switch0.deleteIntfs()
switch1.cmd( 'ovs-vsctl del-br dp1' )
switch1.deleteIntfs()
switch2.cmd( 'ovs-vsctl del-br dp2' )
switch2.deleteIntfs()
switch3.cmd( 'ovs-vsctl del-br dp3' )
switch3.deleteIntfs()
switch4.cmd( 'ovs-vsctl del-br dp4' )
switch4.deleteIntfs()
info( '\n' )
def myNet(cname='controller', cargs='-v ptcp:'):
"Create network from scratch using Open vSwitch."
info("*** Creating nodes\n")
controller = Node('c0', inNamespace=False)
switch = Node('s0', inNamespace=False)
switch1 = Node('s1', inNamespace=False)
h0 = Node('h0')
h1 = Node('h1')
info("*** Creating links\n")
linkopts0 = dict(bw=100, delay='1ms', loss=0)
linkopts1 = dict(bw=100, delay='10ms', loss=0)
link0 = TCLink(h0, switch, **linkopts0)
#initially, the delay from switch to switch1 is 10ms
link1 = TCLink(switch, switch1, **linkopts1)
link2 = TCLink(h1, switch1, **linkopts0)
#print link0.intf1, link0.intf2
link0.intf2.setMAC("0:0:0:0:0:1")
link1.intf1.setMAC("0:0:0:0:0:2")
link1.intf2.setMAC("0:1:0:0:0:1")
link2.intf2.setMAC("0:1:0:0:0:2")
info("*** Configuring hosts\n")
h0.setIP('192.168.123.1/24')
h1.setIP('192.168.123.2/24')
h0.setMAC("a:a:a:a:a:a")
h1.setMAC("8:8:8:8:8:8")
info("*** Starting network using Open vSwitch\n")
switch.cmd('ovs-vsctl del-br dp0')
switch.cmd('ovs-vsctl add-br dp0')
switch1.cmd('ovs-vsctl del-br dp1')
switch1.cmd('ovs-vsctl add-br dp1')
controller.cmd(cname + ' ' + cargs + '&')
for intf in switch.intfs.values():
print intf
print switch.cmd('ovs-vsctl add-port dp0 %s' % intf)
for intf in switch1.intfs.values():
print intf
print switch1.cmd('ovs-vsctl add-port dp1 %s' % intf)
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
switch.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
switch1.cmd('ovs-vsctl set-controller dp1 tcp:127.0.0.1:6633')
info('*** Waiting for switch to connect to controller')
while 'is_connected' not in quietRun('ovs-vsctl show'):
sleep(1)
info('.')
info('\n')
def cDelay1():
switch.cmdPrint('ethtool -K s0-eth1 gro off')
switch.cmdPrint('tc qdisc del dev s0-eth1 root')
switch.cmdPrint(
'tc qdisc add dev s0-eth1 root handle 10: netem delay 50ms')
switch1.cmdPrint('ethtool -K s1-eth0 gro off')
switch1.cmdPrint('tc qdisc del dev s1-eth0 root')
switch1.cmdPrint(
'tc qdisc add dev s1-eth0 root handle 10: netem delay 50ms')
def cDelay2():
switch.cmdPrint('ethtool -K s0-eth1 gro off')
switch.cmdPrint('tc qdisc del dev s0-eth1 root')
switch.cmdPrint(
'tc qdisc add dev s0-eth1 root handle 10: netem delay 200ms')
switch1.cmdPrint('ethtool -K s1-eth0 gro off')
switch1.cmdPrint('tc qdisc del dev s1-eth0 root')
switch1.cmdPrint(
'tc qdisc add dev s1-eth0 root handle 10: netem delay 200ms')
# 15 seconds later, the delay from switch to switch 1 will change to 50ms
t1 = Timer(15, cDelay1)
t1.start()
# 30 seconds later, the delay from switch to switch 1 will change to 200ms
t2 = Timer(30, cDelay2)
t2.start()
#info( "*** Running test\n" )
h0.cmdPrint('ping -i 1 -c 45 ' + h1.IP())
sleep(1)
info("*** Stopping network\n")
controller.cmd('kill %' + cname)
switch.cmd('ovs-vsctl del-br dp0')
switch.deleteIntfs()
switch1.cmd('ovs-vsctl del-br dp1')
switch1.deleteIntfs()
info('\n')
def myNet():
"Create network from scratch using Open vSwitch."
info("*** Creating nodes\n")
switch0 = Node('s0', inNamespace=False)
switch1 = Node('s1', inNamespace=False)
switch2 = Node('s2', inNamespace=False)
switch3 = Node('s3', inNamespace=False)
switch4 = Node('s4', inNamespace=False)
h0 = Node('h0')
h1 = Node('h1')
info("*** Creating links\n")
linkopts0 = dict(bw=100, delay='1ms', loss=0)
linkopts1 = dict(bw=1, delay='100ms', loss=0)
linkopts2 = dict(bw=10, delay='50ms', loss=0)
linkopts3 = dict(bw=100, delay='1ms', loss=0)
TCLink(h0, switch0, **linkopts0)
TCLink(switch0, switch1, **linkopts0)
TCLink(switch0, switch2, **linkopts0)
TCLink(switch0, switch3, **linkopts0)
TCLink(switch1, switch4, **linkopts1)
TCLink(switch2, switch4, **linkopts2)
TCLink(switch3, switch4, **linkopts3)
TCLink(h1, switch4, **linkopts0)
info("*** Configuring hosts\n")
h0.setIP('192.168.123.1/24')
h1.setIP('192.168.123.2/24')
info(str(h0) + '\n')
info(str(h1) + '\n')
info("*** Starting network using Open vSwitch\n")
switch0.cmd('ovs-vsctl del-br dp0')
switch0.cmd('ovs-vsctl add-br dp0')
switch1.cmd('ovs-vsctl del-br dp1')
switch1.cmd('ovs-vsctl add-br dp1')
switch2.cmd('ovs-vsctl del-br dp2')
switch2.cmd('ovs-vsctl add-br dp2')
switch3.cmd('ovs-vsctl del-br dp3')
switch3.cmd('ovs-vsctl add-br dp3')
switch4.cmd('ovs-vsctl del-br dp4')
switch4.cmd('ovs-vsctl add-br dp4')
for intf in switch0.intfs.values():
print intf
print switch0.cmd('ovs-vsctl add-port dp0 %s' % intf)
for intf in switch1.intfs.values():
print intf
print switch1.cmd('ovs-vsctl add-port dp1 %s' % intf)
for intf in switch2.intfs.values():
print intf
print switch2.cmd('ovs-vsctl add-port dp2 %s' % intf)
for intf in switch3.intfs.values():
print intf
print switch3.cmd('ovs-vsctl add-port dp3 %s' % intf)
for intf in switch4.intfs.values():
print intf
print switch4.cmd('ovs-vsctl add-port dp4 %s' % intf)
print switch1.cmd(
r'ovs-ofctl add-flow dp1 idle_timeout=0,priority=1,in_port=1,actions=flood'
)
print switch1.cmd(
r'ovs-ofctl add-flow dp1 idle_timeout=0,priority=1,in_port=1,actions=output:2'
)
print switch1.cmd(
r'ovs-ofctl add-flow dp1 idle_timeout=0,priority=1,in_port=2,actions=output:1'
)
print switch2.cmd(
r'ovs-ofctl add-flow dp2 idle_timeout=0,priority=1,in_port=1,actions=output:2'
)
print switch2.cmd(
r'ovs-ofctl add-flow dp2 idle_timeout=0,priority=1,in_port=2,actions=output:1'
)
print switch3.cmd(
r'ovs-ofctl add-flow dp3 idle_timeout=0,priority=1,in_port=1,actions=output:2'
)
print switch3.cmd(
r'ovs-ofctl add-flow dp3 idle_timeout=0,priority=1,in_port=2,actions=output:1'
)
print switch4.cmd(
r'ovs-ofctl add-flow dp4 idle_timeout=0,priority=1,in_port=1,actions=output:4'
)
print switch4.cmd(
r'ovs-ofctl add-flow dp4 idle_timeout=0,priority=1,in_port=2,actions=output:4'
)
print switch4.cmd(
r'ovs-ofctl add-flow dp4 idle_timeout=0,priority=1,in_port=3,actions=output:4'
)
print switch4.cmd(
r'ovs-ofctl add-flow dp4 idle_timeout=0,priority=1,in_port=4,actions=output:3'
)
#print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,actions=output:4')
print switch0.cmd(
r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,nw_tos=0x10,actions=output:2'
)
print switch0.cmd(
r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,nw_tos=0x20,actions=output:3'
)
print switch0.cmd(
r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.2,nw_tos=0x30,actions=output:4'
)
#print switch0.cmd(r'ovs-ofctl add-flow dp0 idle_timeout=0,priority=10,ip,nw_dst=192.168.123.1,actions=output:1')
#switch0.cmd('tcpdump -i s0-eth0 -U -w aaa &')
#h0.cmd('tcpdump -i h0-eth0 -U -w aaa &')
info("*** Running test\n")
h0.cmdPrint('ping -Q 0x10 -c 3 ' + h1.IP())
h0.cmdPrint('ping -Q 0x20 -c 3 ' + h1.IP())
h0.cmdPrint('ping -Q 0x30 -c 3 ' + h1.IP())
#h1.cmdPrint('iperf -s -p 12345 -u &')
#h0.cmdPrint('iperf -c ' + h1.IP() +' -u -b 10m -p 12345 -t 10 -i 1')
#print switch0.cmd( 'ovs-ofctl show dp0' )
#print switch1.cmd( 'ovs-ofctl show dp1' )
#print switch2.cmd( 'ovs-ofctl show dp2' )
#print switch3.cmd( 'ovs-ofctl show dp3' )
#print switch4.cmd( 'ovs-ofctl show dp4' )
#print switch0.cmd( 'ovs-ofctl dump-tables dp0' )
#print switch0.cmd( 'ovs-ofctl dump-ports dp0' )
#print switch0.cmd( 'ovs-ofctl dump-flows dp0' )
#print switch0.cmd( 'ovs-ofctl dump-aggregate dp0' )
#print switch0.cmd( 'ovs-ofctl queue-stats dp0' )
#print "Testing video transmission between h1 and h2"
#h1.cmd('./myrtg_svc -u > myrd &')
#h0.cmd('./mystg_svc -trace st 192.168.123.2')
info("*** Stopping network\n")
switch0.cmd('ovs-vsctl del-br dp0')
switch0.deleteIntfs()
switch1.cmd('ovs-vsctl del-br dp1')
switch1.deleteIntfs()
switch2.cmd('ovs-vsctl del-br dp2')
switch2.deleteIntfs()
switch3.cmd('ovs-vsctl del-br dp3')
switch3.deleteIntfs()
switch4.cmd('ovs-vsctl del-br dp4')
switch4.deleteIntfs()
info('\n')
def myNet(cname='controller', cargs='-v ptcp:'):
"Create network from scratch using Open vSwitch."
info("*** Creating nodes\n")
controller = Node('c0', inNamespace=False)
s1 = Node('s1', inNamespace=False)
s2 = Node('s2', inNamespace=False)
s3 = Node('s3', inNamespace=False)
s4 = Node('s4', inNamespace=False)
s6 = Node('s6', inNamespace=False)
s7 = Node('s7', inNamespace=False)
h1 = Node('h1')
h2 = Node('h2')
h3 = Node('h3')
h4 = Node('h4')
h5 = Node('h5')
h6 = Node('h6')
h7 = Node('h7')
h8 = Node('h8')
server = Node('server')
info("*** Creating links\n")
linkopts0 = dict(bw=10, delay='1ms', loss=0)
TCLink(s1, s2, **linkopts0)
TCLink(s2, s3, **linkopts0)
TCLink(s2, s4, **linkopts0)
TCLink(s2, s6, **linkopts0)
TCLink(s2, s7, **linkopts0)
TCLink(s1, h3, **linkopts0)
TCLink(s1, h4, **linkopts0)
TCLink(s3, h1, **linkopts0)
TCLink(s4, h7, **linkopts0)
TCLink(s4, h8, **linkopts0)
TCLink(s6, h5, **linkopts0)
TCLink(s6, h6, **linkopts0)
TCLink(s7, server, **linkopts0)
info("*** Configuring hosts\n")
h1.setIP('30.30.1.20/22')
h2.setIP('30.30.1.21/22')
h3.setIP('30.30.1.22/22')
h4.setIP('30.30.1.23/22')
h5.setIP('30.30.1.24/22')
h6.setIP('30.30.1.25/22')
h7.setIP('30.30.1.26/22')
h8.setIP('30.30.1.27/22')
server.setIP('30.30.1.28/22')
h1.setMAC('00:00:00:43:92:01')
h2.setMAC('00:00:00:43:92:02')
h3.setMAC('00:00:00:43:92:03')
h4.setMAC('00:00:00:43:92:04')
h5.setMAC('00:00:00:43:92:05')
h6.setMAC('00:00:00:43:92:06')
h7.setMAC('00:00:00:43:92:07')
h8.setMAC('00:00:00:43:92:08')
server.setMAC('00:00:00:43:92:09')
s1.setMAC('00:00:02:43:92:01')
s2.setMAC('00:00:02:43:92:02')
s3.setMAC('00:00:02:43:92:03')
s4.setMAC('00:00:02:43:92:04')
s6.setMAC('00:00:02:43:92:05')
s7.setMAC('00:00:02:43:92:06')
info("*** Starting network using Open vSwitch\n")
s1.cmd('ovs-vsctl del-br dp1')
s1.cmd('ovs-vsctl add-br dp1')
s2.cmd('ovs-vsctl del-br dp2')
s2.cmd('ovs-vsctl add-br dp2')
s3.cmd('ovs-vsctl del-br dp3')
s3.cmd('ovs-vsctl add-br dp3')
s4.cmd('ovs-vsctl del-br dp4')
s4.cmd('ovs-vsctl add-br dp4')
s6.cmd('ovs-vsctl del-br dp6')
s6.cmd('ovs-vsctl add-br dp6')
s7.cmd('ovs-vsctl del-br dp7')
s7.cmd('ovs-vsctl add-br dp7')
controller.cmd(cname + ' ' + cargs + '&')
for intf in s1.intfs.values():
print intf
print s1.cmd('ovs-vsctl add-port dp1 %s' % intf)
for intf in s2.intfs.values():
print intf
print s2.cmd('ovs-vsctl add-port dp2 %s' % intf)
for intf in s3.intfs.values():
print intf
print s3.cmd('ovs-vsctl add-port dp3 %s' % intf)
for intf in s4.intfs.values():
print intf
print s4.cmd('ovs-vsctl add-port dp4 %s' % intf)
for intf in s6.intfs.values():
print intf
print s6.cmd('ovs-vsctl add-port dp6 %s' % intf)
for intf in s7.intfs.values():
print intf
print s7.cmd('ovs-vsctl add-port dp7 %s' % intf)
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
s1.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
s2.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
s3.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
s4.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
s6.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
s7.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
info('*** Waiting for switch to connect to controller')
while 'is_connected' not in quietRun('ovs-vsctl show'):
sleep(1)
info('.')
info('\n')
#print s0.cmd('ovs-ofctl show dp0')
#info( "*** Running test\n" )
h3.cmdPrint('ping -c 3 ' + h2.IP())
h4.cmdPrint('ping -c 3 ' + h2.IP())
h2.cmd('iperf -s &')
h3.cmdPrint('iperf -c 30.30.1.23 -t 10')
h4.cmdPrint('iperf -c 30.30.1.23 -t 10')
s1.cmdPrint('ethtool -K s0-eth2 gro off')
s1.cmdPrint('tc qdisc del dev s0-eth2 root')
s1.cmdPrint(
'tc qdisc add dev s0-eth2 root handle 1: cbq avpkt 1000 bandwidth 10Mbit rate 512kbit bounded isolated'
)
h3.cmdPrint('iperf -c 30.30.1.23 -t 10')
h4.cmdPrint('iperf -c 30.30.1.23 -t 10')
info("*** Stopping network\n")
controller.cmd('kill %' + cname)
s1.cmd('ovs-vsctl del-br dp1')
s1.deleteIntfs()
s2.cmd('ovs-vsctl del-br dp2')
s2.deleteIntfs()
info('\n')
def netconfNet():
"Create network from scratch using netconfd instance on each node."
info("*** Creating nodes\n")
h0 = Node('h0', inNamespace=True)
h1 = Node('h1', inNamespace=True)
b0 = Node('b0', inNamespace=False)
b1 = Node('b1', inNamespace=False)
ncproxy = Node('ncproxy', inNamespace=False)
info("*** Creating links\n")
b0.cmd("ip link del b0-eth0")
b0.cmd("ip link del b0-eth1")
b1.cmd("ip link del b1-eth0")
b1.cmd("ip link del b1-eth1")
Link(h0, b0, intfName2="b0-eth0")
Link(b0, b1, intfName1="b0-eth1", intfName2="b1-eth0")
Link(h1, b1, intfName2="b1-eth1")
info("*** Configuring hosts\n")
h0.setIP('192.168.123.1/24')
h1.setIP('192.168.123.2/24')
info(str(h0) + '\n')
info(str(h1) + '\n')
info(str(b0) + '\n')
info(str(b1) + '\n')
info("*** Starting network\n")
h0.cmd(
'''INTERFACE_NAME_PREFIX=h0- ./run-netconfd --module=ietf-interfaces --no-startup --port=8832 --ncxserver-sockname=/tmp/ncxserver.8832.sock --superuser=${USER} &'''
)
ncproxy.cmd(
'''./run-sshd-for-netconfd --port=8832 --ncxserver-sockname=/tmp/ncxserver.8832.sock &'''
)
h1.cmd(
'''INTERFACE_NAME_PREFIX=h1- ./run-netconfd --module=ietf-interfaces --no-startup --port=8833 --ncxserver-sockname=/tmp/ncxserver.8833.sock --superuser=${USER} &'''
)
ncproxy.cmd(
'''./run-sshd-for-netconfd --port=8833 --ncxserver-sockname=/tmp/ncxserver.8833.sock &'''
)
#bridge b0
b0.cmd(
'''VCONN_ARG=ptcp:16636 ./run-netconfd --module=ietf-network-bridge-openflow --no-startup --superuser=${USER} --port=8830 --ncxserver-sockname=/tmp/ncxserver.8830.sock &'''
)
b0.cmd('ovs-vsctl del-br dp0')
b0.cmd('ovs-vsctl add-br dp0')
for intf in b0.intfs.values():
print "Setting: " + str(intf)
print b0.cmd('ovs-vsctl add-port dp0 %s' % intf)
print b0.cmd('ifconfig -a')
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
b0.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:16636')
info('*** Waiting for switch to connect to controller')
while 'is_connected' not in quietRun('ovs-vsctl show'):
sleep(1)
info('.')
info('\n')
#bridge b1
b1.cmd(
'''VCONN_ARG=ptcp:16635 ./run-netconfd --module=ietf-network-bridge-openflow --no-startup --superuser=${USER} --port=8831 --ncxserver-sockname=/tmp/ncxserver.8831.sock &'''
)
b1.cmd('ovs-vsctl del-br dp1')
b1.cmd('ovs-vsctl add-br dp1')
for intf in b1.intfs.values():
print "Setting: " + str(intf)
print b1.cmd('ovs-vsctl add-port dp1 %s' % intf)
print b1.cmd('ifconfig -a')
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
b1.cmd('ovs-vsctl set-controller dp1 tcp:127.0.0.1:16635')
sleep(10)
raw_input("Press Enter to continue...")
tree = etree.parse("topology.xml")
network = tree.xpath('/nc:config/nd:networks/nd:network',
namespaces=namespaces)[0]
conns = tntapi.network_connect(network)
yconns = tntapi.network_connect_yangrpc(network)
mylinks = tntapi.parse_network_links(network)
print("Done")
state_before = tntapi.network_get_state(network, conns)
info("*** Running test\n")
#create flows configuration
yangcli_script = """
merge /bridge/ports/port -- name=b0-eth0
merge /interfaces/interface -- name=b0-eth0 type=ethernetCsmacd port-name=b0-eth0
merge /bridge/ports/port -- name=b0-eth1
merge /interfaces/interface -- name=b0-eth1 type=ethernetCsmacd port-name=b0-eth1
create /flows/flow[id='h0-to-h1'] -- match/in-port=b0-eth0 actions/action[order='0']/output-action/out-port=b0-eth1
create /flows/flow[id='h1-to-h0'] -- match/in-port=b0-eth1 actions/action[order='0']/output-action/out-port=b0-eth0
"""
result = tntapi.yangcli_ok_script(yconns["b0"], yangcli_script)
yangcli_script = """
merge /bridge/ports/port -- name=b1-eth0
merge /interfaces/interface -- name=b1-eth0 type=ethernetCsmacd port-name=b1-eth0
merge /bridge/ports/port -- name=b1-eth1
merge /interfaces/interface -- name=b1-eth1 type=ethernetCsmacd port-name=b1-eth1
create /flows/flow[id='h0-to-h1'] -- match/in-port=b1-eth0 actions/action[order='0']/output-action/out-port=b1-eth1
create /flows/flow[id='h1-to-h0'] -- match/in-port=b1-eth1 actions/action[order='0']/output-action/out-port=b1-eth0
"""
result = tntapi.yangcli_ok_script(yconns["b1"], yangcli_script)
tntapi.network_commit(conns)
# The commit should cause the netconfd server to execute the OpenFlow equivalent of:
#switch.cmd( 'ovs-ofctl add-flow dp0 in_port=2,actions=output:1' )
#switch.cmd( 'ovs-ofctl add-flow dp0 in_port=1,actions=output:2' )
b0.cmdPrint('ovs-ofctl dump-flows dp0')
info("*** Running test\n")
h0.cmdPrint('ping -I h0-eth0 -c10 ' + h1.IP())
b0.cmdPrint('ovs-ofctl dump-flows dp0')
state_after = tntapi.network_get_state(network, conns)
#delta = tntapi.get_network_counters_delta(state_before,state_after)
tntapi.print_state_ietf_interfaces_statistics_delta(
network, state_before, state_after)
raw_input("Press Enter to continue...")
info("*** Stopping network\n")
b0.cmd('killall -KILL netconfd')
b0.cmd('ovs-vsctl del-br dp0')
b0.deleteIntfs()
b1.cmd('killall -KILL netconfd')
b1.cmd('ovs-vsctl del-br dp1')
b1.deleteIntfs()
info('\n')
def scratchNet(cname='controller', cargs='-v ptcp:'):
"Create network from scratch using Open vSwitch."
info("*** Creating nodes\n")
controller = Node('c0', inNamespace=False)
switch0 = Node('s0', inNamespace=False)
switch1 = Node('s1', inNamespace=False)
h0 = Node('h0')
h1 = Node('h1')
info("*** Creating links\n")
linkopts0 = dict(bw=10)
linkopts1 = dict(bw=10, delay='5ms', loss=10)
TCLink(h0, switch0, **linkopts0)
TCLink(h1, switch1, **linkopts0)
TCLink(switch0, switch1, **linkopts1)
info("*** Configuring hosts\n")
h0.setIP('192.168.123.1/24')
h1.setIP('192.168.123.2/24')
info(str(h0) + '\n')
info(str(h1) + '\n')
info("*** Starting network using Open vSwitch\n")
controller.cmd(cname + ' ' + cargs + '&')
switch0.cmd('ovs-vsctl del-br dp0')
switch0.cmd('ovs-vsctl add-br dp0')
switch1.cmd('ovs-vsctl del-br dp1')
switch1.cmd('ovs-vsctl add-br dp1')
for intf in switch0.intfs.values():
print intf
print switch0.cmd('ovs-vsctl add-port dp0 %s' % intf)
for intf in switch1.intfs.values():
print intf
print switch1.cmd('ovs-vsctl add-port dp1 %s' % intf)
switch0.cmd('ovs-vsctl set-controller dp0 tcp:10.1.50.175:6633')
switch1.cmd('ovs-vsctl set-controller dp1 tcp:10.1.50.175:6633')
switch0.cmd('ovs-ofctl add-flow dp0 \"in_port=1 actions=output:2\"')
switch0.cmd('ovs-ofctl add-flow dp0 \"in_port=2 actions=output:1\"')
switch1.cmd('ovs-ofctl add-flow dp1 \"in_port=1 actions=output:2\"')
switch1.cmd('ovs-ofctl add-flow dp1 \"in_port=2 actions=output:1\"')
info('*** Waiting for switch to connect to controller')
while 'is_connected' not in quietRun('ovs-vsctl show'):
sleep(1)
info('.')
info('\n')
print switch0.cmd('ovs-ofctl show dp0')
print switch1.cmd('ovs-ofctl show dp1')
info("*** Running test\n")
h0.cmdPrint('ping -c3 ' + h1.IP())
h1.cmdPrint('ping -c3 ' + h0.IP())
info("*** Stopping network\n")
controller.cmd('kill %' + cname)
switch0.cmd('ovs-vsctl del-br dp0')
switch0.deleteIntfs()
switch1.cmd('ovs-vsctl del-br dp1')
switch1.deleteIntfs()
info('\n')