Dear all,
I am trying for a while to configure properly a network created by Linksys
and TP-Link routers on which I have OpenWrt 0.8 (I believe) and OpenFlow
1.0. Can you please go throw my fairly long configuration steps and clarify
some issues?
My file /etc/config/openflow looks like this
config 'ofswitch'
option 'dp' 'dp0'
option 'ofports' 'eth0.0 eth0.1 eth0.2 eth0.3'
option 'ofctl' 'tcp:10.92.0.100:6633'
option 'mode' 'inband'
Now, can you explain fairly what is *inband* and *outofband* controll and
suggest which is better for NOX controller?
In order to start the openflow protocol I created a separtated script for
startup in /etc/init.d/ that is bellow
#!/bin/sh /etc/rc.common
START=90
STOP=90
boot() {
ofdatapath --detach punix:/var/run/dp0 -d 586D8762F8B1 -i br-lan
ofprotocol unix:/var/run/dp0 tcp:10.92.0.100:6633 --fail=closed
}
start() {
ofdatapath --detach punix:/var/run/dp0 -d 586D8762F8B1 -i br-lan
ofprotocol unix:/var/run/dp0 tcp:10.92.0.100:6633 --fail=closed
}
restart() {
stop
start
}
I mention that the fail=closed dosen't work, I can still ping my host even
if I don't start a controller.
I can verify flows installed using wireshark and filtering for FlowMod or I
use
dpctl dump-flows unix:/var/run/dp0
Next question that is very important for me is how do I see in whireshark
the traffic that is by *default* on the switches and the one that passes by
the flows I installed. Is there any way to actually see that things go as
expected?
Hope you will reply to me :) Also, maybe I missed some tutorials or someone
actually uses real devices and can give me more pointers on how this works.
Thanks a lot!!!
Best,
Diana
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