Hi,
I would like to deploy RYU in a scalable and fault tolerant architecture.
What I want to do is as follows.
1) There are two instances of RYU (RYU1 and RYU2) running on two separate
machines (SYS1 and SYS2 ) but are connected so as to form a logically
unified CONTROL plane.
2) The mininet and my topology runs on SYS1,but the switches in my topology
initiate connection to both RYU1 and RYU2.
3) I should be able to assign one of the controllers (RYU1 or RYU2) as the
master controller.(The master controller assignment will be on a per-switch
basis)
4) To demonstrate scalability I do the following.
- Assume there are 6
switches in the topology (s1 - s6)
- A rough sketch of the
topology is given below
h1 ---- s1 ----- s4
----- h4
h2 ---- s2 ----- s5
----- h5
h3 ---- s3 ----- s6
----- h6
- I let switches 1,2,3 be
controlled by RYU1
switches 4,5,6 be
controlled by RYU2
I should be able to communicate between the switches as expected.
i.e h1 should be
able to ping h4
h2 should be
able to ping h5
h3 should be
able to ping h6
5) To demonstrate fault tolerance with the above topology I start will all
the switches having RYU2 as the master.
Then I shut RYU2 down and I should be able to switch all the switches to
RYU1.
Something like below.(where the ip of the RYU1 is 192.168.241.129"
sudo ovs-vsctl set-controller s1 "tcp:192.168.241.129:6633"
sudo ovs-vsctl set-controller s2 "tcp:192.168.241.129:6633"
sudo ovs-vsctl set-controller s3 "tcp:192.168.241.129:6633"
sudo ovs-vsctl set-controller s4 "tcp:192.168.241.129:6633"
sudo ovs-vsctl set-controller s5 "tcp:192.168.241.129:6633"
sudo ovs-vsctl set-controller s6 "tcp:192.168.241.129:6633"
Have anyone thought of this or something similar.Do you have any comments
or suggestions regarding the same?
Thanks & Regards,
Karthik.
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