I tried again and I am seeing the same result.i.e port 6633 being opened by
the controller.
But once I connect the topology of switches(mininet) to ryu "OpenFlow
Controller" (ryu-manager ryu/app/simple_switch.py).
I see a lot of packet_in messages in the controller.what is the reason for
this?
I would not expect to recieve any packet-in messages till I somehow flood
some traffic through the topology.
Any thought or suggestions are highly appreciated.
Thanks & Regards,
Karthik.
On 14 April 2014 17:21, FUJITA Tomonori <[email protected]>wrote:
> On Sun, 13 Apr 2014 20:13:17 +1200
> Karthik Sharma <[email protected]> wrote:
>
> > I start the simple swith application using the following command.
> >
> > *$ ryu-manager ryu/app/simple_switch.py*
> >
> > If I try to run
> >
> > $ sudo netstat -nltp on the same machine from some other terminal.
> >
> > *$ sudo netstat -nltp *
> >
> > {noformat}
> > Active Internet connections (only servers)
> > Proto Recv-Q Send-Q Local Address Foreign Address State
> > PID/Program name
> > tcp 0 0 127.0.0.1:53 0.0.0.0:*
> > LISTEN 1892/dnsmasq
> > tcp 0 0 0.0.0.0:22 0.0.0.0:*
> > LISTEN 580/sshd
> > tcp 0 0 127.0.0.1:631 0.0.0.0:*
> > LISTEN 704/cupsd
> > tcp6 0 0 :::22 :::*
> > LISTEN 580/sshd
> > {noformat}
> >
> > I cannot find port 6633 in the list because of which my mininet topology
> is
> > not able to connect to the controller?
> >
> > Is there a reason for this?
>
> Strange, it works on my env:
>
> fujita@ubuntu:~$ sudo netstat -nltp
> Active Internet connections (only servers)
> Proto Recv-Q Send-Q Local Address Foreign Address
> State PID/Program name
> tcp 0 0 127.0.0.1:6010 0.0.0.0:*
> LISTEN 4212/0
> tcp 0 0 127.0.0.1:6011 0.0.0.0:*
> LISTEN 4413/2
> tcp 0 0 0.0.0.0:6633 0.0.0.0:*
> LISTEN 4394/python
>
> What messages are printed when you execute `ryu-manager
> ryu/app/simple_switch.py`?
>
>
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