[ovs-discuss] OVS support for OpenFlow 1.3 or 1.2 - specifically per flow meters feature

Simhon Doctori simhond at orckit.com
Wed Dec 12 16:25:59 UTC 2012

Hi Christian

It sounds very interesting. I will take a look on the link you mentioned

You wrote down that "Soon we will be releasing a pre-configured VM that
..." When are you expecting this release to be available? Can we have
something to play with before the formal release is aired?

Thanks a lot,
Simhon Doctori

-----Original Message-----
From: chesteve at gmail.com [mailto:chesteve at gmail.com] On Behalf Of
Christian Esteve Rothenberg
Sent: Wednesday, December 12, 2012 6:12 PM
To: Ben Pfaff
Cc: Simhon Doctori; Ronen Solomon; discuss at openvswitch.org;
ederlf at cpqd.com.br
Subject: Re: [ovs-discuss] OVS support for OpenFlow 1.3 or 1.2 -
specifically per flow meters feature

Simhon, I know that you are asking about OVS, but in case you want to
experiment with the flow metering features introduced in OF1.3, here is
an implementation based on the reference switch design:

There is also a companion NOX v1.3 to implement the corresponing app, or
you can use the dpctl commands, e.g., to install a 10 Mbit metering
dpctl tcp:<switch-host>:<switch-port> meter-mod
cmd=add,flags=1,meter=1 drop:rate=10000

Soon we will be releasing a pre-configured VM that including Mininet
2.0, Wireshark, and oftest in addition to the 1.3 switch and NOX.

BTW, Mininet 2.0 works very nicely to play with QoS features since they
added neat BW and delay capabilities per link.

One caveat on the switch above is that the current implementation
forwards only around 200 Mbps, notably behind OVS performance. Work
towards better performance will be done in Q1 of 2013. The current
token-bucket implementation for rate limiting works but better accuracy
shall be pursued as well during the next months.


On Wed, Dec 12, 2012 at 1:48 PM, Ben Pfaff <blp at nicira.com> wrote:
> On Wed, Dec 12, 2012 at 02:44:00PM +0200, Simhon Doctori wrote:
>> One of the goals is to use per flow meters. Current OVS solution does

>> not have this support although OpenFlow 1.3 does implement these 
>> objects.
>> When are the plans to add this feature support and if possible to 
>> have a beta version for testing?
> No one has mentioned working on support for per-flow meters.  If you 
> would like to contribute this feature, we are open to it.
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