Hi all!
I'm trying to test 2 Ryu controllers to connect to a custom mininet topology
(h1, s3) (s3, s4) (s4, h2) using the command:
>> sudo mn --custom topo-2sw-2host.py --topo mytopo --controller
>> remote,port=6633 --switch ovsk,protocols=OpenFlow13
Using the command to start 2 Ryu controllers on two different instances:
>> PYTHONPATH=. ./bin/ryu-manager --verbose ryu/app/simple_switch_13.py
And connect the 2 Ryu controllers to the Mininet:
>> sudo ovs-vsctl set-controller s3 tcp:10.180.133.200:6633
>> sudo ovs-vsctl set-controller s4 tcp:10.235.19.235:6633
The result, Mininet hosts h1 and h2 were able to ping each other. However, when
one of the Ryu controller is stopped (using Ctrl+z or Ctrl+c) and stop the
listening port 6633 (sudo fuser -k 6633/tcp), the Mininet hosts still able to
ping each other. By right, the hosts are unable to ping each other since one of
the controller is stopped. Even so, I tried stop both the Ryu controllers and
the Mininet hosts were still able to ping each other.
Below are the netstat of the Mininet instance before and after stopping the Ryu
controllers:
a.) Before stopping Ryu
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 432 ip-10-235-51-206.ec:ssh 175.145.212.28:54163 ESTABLISHED
tcp 0 0 ip-10-235-51-206.ec:ssh 175.145.212.28:54137 ESTABLISHED
tcp 0 0 ip-10-235-51-206.:54492 ip-10-180-133-200.:6633 ESTABLISHED
tcp 0 0 ip-10-235-51-206.:40908 ip-10-235-19-235.e:6633 ESTABLISHED
b.) Stop 1 Ryu controller
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 496 ip-10-235-51-206.ec:ssh 175.145.212.28:54163 ESTABLISHED
tcp 0 0 ip-10-235-51-206.ec:ssh 175.145.212.28:54137 ESTABLISHED
tcp 0 0 ip-10-235-51-206.:40908 ip-10-235-19-235.e:6633 ESTABLISHED
c.) Stop all Ryu controllers
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 432 ip-10-235-51-206.ec:ssh 175.145.212.28:54163 ESTABLISHED
tcp 0 0 ip-10-235-51-206.ec:ssh 175.145.212.28:54137 ESTABLISHED
#The Mininet are still able to ping each other:
mininet> pingall
*** Ping: testing ping reachability
h1 -> h2
h2 -> h1
*** Results: 0% dropped (2/2 received)
mininet> h1 ping h2
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.053 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.091 ms
64 bytes from 10.0.0.2: icmp_seq=3 ttl=64 time=0.080 ms
64 bytes from 10.0.0.2: icmp_seq=4 ttl=64 time=0.074 ms
64 bytes from 10.0.0.2: icmp_seq=5 ttl=64 time=0.077 ms
64 bytes from 10.0.0.2: icmp_seq=6 ttl=64 time=0.079 ms
64 bytes from 10.0.0.2: icmp_seq=7 ttl=64 time=0.080 ms
64 bytes from 10.0.0.2: icmp_seq=8 ttl=64 time=0.079 ms
^C
--- 10.0.0.2 ping statistics ---
8 packets transmitted, 8 received, 0% packet loss, time 6998ms
rtt min/avg/max/mdev = 0.053/0.076/0.091/0.014 ms
I'm sorry but I'm new to Ryu controller, may I ask is there any way to really
shut Ryu controller completely?
Thanks,
Liew GH
------------------------------------------------------------------------------
One dashboard for servers and applications across Physical-Virtual-Cloud
Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
Deep dive visibility with transaction tracing using APM Insight.
http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
_______________________________________________
Ryu-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ryu-devel
