def launch():
h1 = GetPacketHost.create("h1")
h2 = GetPacketHost.create("h2")
s1 = sim.config.default_switch_type.create("s1")
s2 = sim.config.default_switch_type.create("s2")
s3 = sim.config.default_switch_type.create("s3")
s4 = sim.config.default_switch_type.create("s4")
s5 = sim.config.default_switch_type.create("s5")
h1.linkTo(s1)
h2.linkTo(s2)
s1.linkTo(s2)
s1.linkTo(s3)
s3.linkTo(s4)
s4.linkTo(s5)
s5.linkTo(s2)
def test_tasklet():
yield 5 # Wait five seconds for routing to converge
api.userlog.debug("Sending test ping 1")
h1.ping(h2)
yield 5
api.userlog.debug("Failing and slowing s1-s2 link ")
# pdb.set_trace()
s1.unlinkTo(s2)
# s1.linkTo(s2 )
yield 10
api.userlog.debug("Sending test ping 2")
h1.ping(h2)
# pdb.set_trace()
yield 10
s1.linkTo(s2, latency=2)
if h2.pings != 2:
api.userlog.error("h2 got %s packets instead of 2", h2.pings)
else:
api.userlog.debug("Test passed successfully!")
# End the simulation and (if not running in interactive mode) exit.
import sys
sys.exit(0)
api.run_tasklet(test_tasklet)
def launch():
h1 = GetPacketHost.create("h1")
h2 = GetPacketHost.create("h2")
s1 = sim.config.default_switch_type.create('s1')
s2 = sim.config.default_switch_type.create('s2')
s3 = sim.config.default_switch_type.create('s3')
s4 = sim.config.default_switch_type.create('s4')
s5 = sim.config.default_switch_type.create('s5')
h1.linkTo(s1)
h2.linkTo(s2)
s1.linkTo(s2)
s1.linkTo(s3)
s3.linkTo(s4)
s4.linkTo(s5)
s5.linkTo(s2)
def test_tasklet():
yield 10 # Wait five seconds for routing to converge
api.userlog.debug("Sending test ping 1")
h1.ping(h2)
yield 10
api.userlog.debug("Failing s1-s2 link")
s1.unlinkTo(s2)
yield 10
api.userlog.debug("Sending test ping 2")
h1.ping(h2)
yield 10
if h2.pings != 2:
api.userlog.error("h2 got %s packets instead of 2", h2.pings)
else:
api.userlog.debug("Test passed successfully!")
# End the simulation and (if not running in interactive mode) exit.
import sys
sys.exit(0)
api.run_tasklet(test_tasklet)
def launch ():
h1 = GetPacketHost.create("h1")
h2 = GetPacketHost.create("h2")
h3 = GetPacketHost.create("h3")
h4 = GetPacketHost.create("h4")
s1 = sim.config.default_switch_type.create('s1')
s2 = sim.config.default_switch_type.create('s2')
s3 = sim.config.default_switch_type.create('s3')
s4 = sim.config.default_switch_type.create('s4')
s5 = sim.config.default_switch_type.create('s5')
h1.linkTo(s1)
h2.linkTo(s4)
h3.linkTo(s3)
h4.linkTo(s5)
s1.linkTo(s2, latency =4)
s1.linkTo(s3)
s1.linkTo(s5)
s4.linkTo(s3)
s4.linkTo(s2)
s4.linkTo(s5)
s5.linkTo(s2)
s3.linkTo(s2)
def test_tasklet ():
yield 5 # Wait five seconds for routing to converge
api.userlog.debug("Sending test ping 1")
h1.ping(h2)
yield 5
h3.ping(h4)
api.userlog.debug("Adding fast s1-s2 link ")
#pdb.set_trace()
#s1.unlinkTo(s2)
s1.linkTo(s2)
yield 10
h1.ping(h3)
api.userlog.debug("Sending test ping 2")
#t = TestPacket(dst=h2)
#h1.send(t, flood=True)
#pdb.set_trace()
h1.ping(h2)
yield 10
if h2.pings != 2:
api.userlog.error("h2 got " + str(h2.basic_pings) + " basic pings")
api.userlog.error("h2 got " + str(h2.test_packets) + " test packets")
api.userlog.error("h2 got %s packets instead of 2", h2.pings)
else:
api.userlog.debug("Test passed successfully!")
# End the simulation and (if not running in interactive mode) exit.
import sys
sys.exit(0)
api.run_tasklet(test_tasklet)
