Fwd: RYU

[William Snow]

An interesting post on the sdn working group mailing list.

---------- Forwarded message ----------
From: Bill Chimiak <bchi...@ltsnet.net>
Date: Tue, Mar 22, 2016 at 10:29 AM
Subject: RYU
To: "wg-...@internet2.edu" <wg-...@internet2.edu>


Members of this Group:
I was a bit embarrassed that I liked RYU much better
that the other controllers (it was very easy to use
and even easier to explain to non-OpenFlow engineers).
I was told that RYU's difficulty with scaling
and multiprocessor functioning was a problem
and that it was not a production controller.

I spoke with members of NTT and RYU is the controller
used on the national network.  They are not having problems.

They just have controllers operating on a fixed
set of switches and do not overload the controllers.
That is to say the controllers are judiciously placed
and are operating on a national production network.
If a new segment is brought up, it has its controller.

So the "not ready for production" may not be a good
description for RYU.  For other RYU fans, this is
good news.

Cheers to everyone.

--
Bill Chimiak, Ph.D. ECE
Laboratory for Telecommunications Sciences
8080 Greenmead Drive
College Park, MD 20749
301-422-5217

--

Bill Snow
ON.Lab
VP of Engineering
+1.650.996.3164 (m)

[Guru Parulkar]

Interesting… But it suggests you need multiple RYU instances to do this and there is no mention of how they federate or collaborate to create a global network view. If apps don’t have a global network view, you cannot realize the full potential of SDN….

Am I missing something? 

-guru

Guru Parulkar
http://parulkar.com/

[Luca Prete]

It seems to me that most of the time people say "I run in production" things need further clarification.

Josh Bailey claims he runs in production with a single instance controller connecting two ports together without any security... which is something most of the people wouldn't ever consider in a testbed...

On the other side, I keep believing it's the right moment to start focusing on one little function and make it production ready, to have a real and bigger impact.

Luca