Hi Subha,

By default, Ryu will wait for the connection from switches on port 6653 and 
6633, So most of the
required configuration is on switch side, I guess.

If you are using Open vSwitch, please execute the following command on your 
switches.
  $ ovs-vsctl set-controller <switch_name> "tcp:<controller1_addr>:6653" 
"tcp:<controller2_addr>:6653"

Optionally, if you want to tell switches which controller is Master or Slave, 
send OFPRoleRequest
message from your Ryu application.

http://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ryu.ofproto.ofproto_v1_3_parser.OFPRoleRequest

Thanks,
Iwase


On 2017年10月06日 12:16, Subha wrote:
2nd try!!
Thanks,
subha.

---------- Forwarded message ----------
From: *Subha* <[email protected] <mailto:[email protected]>>
Date: Thu, Oct 5, 2017 at 2:00 PM
Subject: Re: Reg: Multiple controller support using RYU
To: [email protected] <mailto:[email protected]>


Making it a bit clearer. I want to have two controller running simultaneously with one as Master and one as Slave.

Any pointers on how to achieve this will be helpful.

Thanks,
subha.

On Thu, Oct 5, 2017 at 12:51 PM, Subha <[email protected] 
<mailto:[email protected]>> wrote:

    Hi ,


    Can someone share me some docs or steps to setup multiple controllers using 
ryu.


    Thanks,
    subha.





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