iperf crashing "sudo mn --topo single,3 --mac --controller remote --switch user" about openflow-tutorial HOT 8 CLOSED

Could you solve your problem? I facing the same problem!

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I also have the same problem. Please share if you find a solution!

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I've updated the page to note that you can't (currently) use --mac with --switch user because of mininet/mininet#156

Note that --controller remote implies that you're running the controller separately, as specified earlier on that page.

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I jsut got the same problem, how to solve it? help

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Hi, I also got a similar problem like this. My case is a loop is introduced in my topology. However, the default setting of Mininet open vswitch (ovs) disables Spanning Tree Protocol (STP). So the solution for my case is to enable the STP when setting ovs.
The error for the original issue is "no route to 10.0.0.3". Please check the connectivity first.
Just for reference :)

from openflow-tutorial.

Hi, I also got a similar problem like this. My case is a loop is introduced in my topology. However, the default setting of Mininet open vswitch (ovs) disables Spanning Tree Protocol (STP). So the solution for my case is to enable the STP when setting ovs.
The error for the original issue is "no route to 10.0.0.3". Please check the connectivity first.
Just for reference :)

Like this? It is still not working for me :(

self.net = Mininet(topo=None, listenPort=6634, ipBase='10.0.0.0/8', controller=self.controller)

self.h1 = self.net.addHost('host1', mac='00:00:00:00:00:01', ip='10.0.0.1')
self.h2 = self.net.addHost('host2', mac='00:00:00:00:00:02', ip='10.0.0.2')

self.s1 = self.net.addSwitch('s1', cls=OVSKernelSwitch, protocols='OpenFlow13', stp=True)
self.s2 = self.net.addSwitch('s2', cls=OVSKernelSwitch, protocols='OpenFlow13', stp=True)

self.net.addLink(self.h1, self.s1, cls=Link)
self.net.addLink(self.h2, self.s2, cls=Link)
self.net.addLink(self.s1, self.s2, cls=TCLink, bw=self.link_bw)

self.net.addController(name=self.controller)
self.net.start()

self.net.iperf([self.h1, self.h2])

from openflow-tutorial.

Hi, I also got a similar problem like this. My case is a loop is introduced in my topology. However, the default setting of Mininet open vswitch (ovs) disables Spanning Tree Protocol (STP). So the solution for my case is to enable the STP when setting ovs.
The error for the original issue is "no route to 10.0.0.3". Please check the connectivity first.
Just for reference :)

Like this? It is still not working for me :(

self.net = Mininet(topo=None, listenPort=6634, ipBase='10.0.0.0/8', controller=self.controller)

self.h1 = self.net.addHost('host1', mac='00:00:00:00:00:01', ip='10.0.0.1')
self.h2 = self.net.addHost('host2', mac='00:00:00:00:00:02', ip='10.0.0.2')

self.s1 = self.net.addSwitch('s1', cls=OVSKernelSwitch, protocols='OpenFlow13', stp=True)
self.s2 = self.net.addSwitch('s2', cls=OVSKernelSwitch, protocols='OpenFlow13', stp=True)

self.net.addLink(self.h1, self.s1, cls=Link)
self.net.addLink(self.h2, self.s2, cls=Link)
self.net.addLink(self.s1, self.s2, cls=TCLink, bw=self.link_bw)

self.net.addController(name=self.controller)
self.net.start()

self.net.iperf([self.h1, self.h2])

Hi, what is the exception thrown in your case? Is every node in the connection?
For the stp enabling, according to the reference(http://mininet.org/api/classmininet_1_1node_1_1OVSSwitch.html#ab5db2ef0d48302217833ce1538270310), it would be False until the failMode=standalone (the default is secure). So I run the following common in CLI:
sudo mn XXXX(your topo setting etc.) --switch=ovsk,failMode='standalone',stp=True

Probably you consider the failMode when do 'addSwitch' I guess...

Good luck~

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Hello, everyone

as a workaround to this issue, I started the controller as a background process before running the commands sudo mn --topo single,3 --mac --controller remote --switch ovsk followed by iperf

In order to start the controller in background, run

sudo controller ptcp:6633

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