Hello,My Beacon Controller Hub is unable to connect with the default IP address
as given in the tutorial:
Tutorial Scenario:Make sure the reference controller used before is not
running:$ sudo killall controller
You will need to tell the Mininet virtual switches to connect to your host
machine's IP address. To get that, from your Mininet ssh window run the command
sudo route:openflow@openflowtutorial:~$ sudo route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.206.0 * 255.255.255.0 U 0 0 0 eth0
default 192.168.206.2 0.0.0.0 UG 0 0 0 eth0
Look for the line that starts with default, and typically your host's IP
address will be the IP in the Gateway column. If that IP address ends with .1,
and later you are unable to connect Mininet to Beacon, try the same IP but
swapping the ending .1 with .2.You should also restart Mininet to make sure
that everything is "clean". From your Mininet console:mininet> exit
$ sudo mn --topo single,3 --mac --switch ovsk --controller remote --ip
<your_host_ip>
The --ip parameter defines in which IP your controller is located. Note that
this is the IP your host uses to communicate with the VM, as discussed above.
In my case, the VM's IP is 192.168.206.4 and the host's IP is 192.168.206.2 .
Thus, I started mininet using$ sudo mn --topo single,3 --mac --switch ovsk
--controller remote --ip 192.168.206.2
Now it's time to start Beacon.Wait until the application indicates that the
OpenFlow switch has connected. When the switch connects, your Eclipse console
should print something like this:01:07:31.095 [pool-2-thread-2] INFO
n.b.core.internal.Controller - Switch connected from
java.nio.channels.SocketChannel[connected local=/192.168.206.2:6633
remote=/192.168.206.4:54994]
Here in the above line the connected local is connected to the same IP address
that was mentioned in the command to create the topology.
Real Scenario:
When I run the Command "sudo route" i get the following
entries:openflow@openflowtutorial:~$ sudo routeKernel IP routing
tableDestination Gateway Genmask Flags Metric Ref Use
Iface10.0.2.0 * 255.255.255.0 U 0 0 0
eth7192.168.56.0 * 255.255.255.0 U 0 0 0
eth8default 10.0.2.2 0.0.0.0 UG 0 0 0 eth7
As per the tutorial my default destination has the IP Address " 10.0.2.2". And
after running the second command that is :
mininet> exit
$ sudo mn --topo single,3 --mac --switch ovsk --controller remote --ip
10.0.2.2A topology is created and in my case the Console output by eclipse is
given below:
osgi> 09:54:58.942 [pool-2-thread-1] INFO n.b.core.internal.Controller -
Started thread Thread[pool-2-thread-1,5,spring-osgi-extender[6789b939]-threads]
for IOLoop IOLoop [id=0 stream_count=0]09:54:58.942
[SpringOsgiExtenderThread-3] INFO n.b.core.internal.Controller - Beacon Core
Started09:54:59.740 [SpringOsgiExtenderThread-4] TRACE
n.b.tutorial.LearningSwitchTutorial - Starting09:54:59.814
[SpringOsgiExtenderThread-4] INFO n.b.core.internal.Controller - Controller
listening on *:663309:55:05.271 [pool-2-thread-2] INFO
n.b.core.internal.Controller - Switch connected from
java.nio.channels.SocketChannel[connected local=/127.0.0.1:6633
remote=/127.0.0.1:49289]09:55:05.372 [pool-2-thread-2] INFO
n.b.core.internal.Controller - Added switch OFSwitchImpl
[Socket[addr=/127.0.0.1,port=49289,localport=6633] DPID[?]] to IOLoop IOLoop
[id=0 stream_count=1]
So my question is ..why my switch didn't got connected to the default IP
address that is 10.0.2.2 instead of 127.0.0.1. As according to the tutorial
scenario the switch must connect to the default IP address( the same that was
mentioned while creating topology).
Thank you,
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