[ovs-dev] meters support in datapath

[Jarno Rajahalme]

You may want to have a look on meter patches I sent out earlier to ovs dev list:

http://openvswitch.org/pipermail/dev/2015-November/062428.html

The patches are to be applied to ovs master branch at the time of when the email was sent.

The meters in the patch series should work fine, but they have a flaw that a DROP meter drop drops the whole rest of the pipeline, which is bad if the meter is part of a resubmit that results to an output, and there are multiple of such resubmits. In this case only the output of the resubmit with the meter action should be dropped, not all of them.

 Jarno

> On Apr 1, 2016, at 12:02 AM, Deepanshu Saxena1/CHN/TCS <deepanshu.saxena1 at tcs.com> wrote:
> 
> 
> 
> Hi all, 
> 
> 
> 
> I want to implement and contribute B.19.13-Meter action (EXT-379) of OF 1.5.1 to openvswitch 
> 
> 
> According to FAQ: 
> "Q: Does Open vSwitch support OpenFlow meters? 
> 
> 
> A: Since version 2.0, Open vSwitch has OpenFlow protocol support for OpenFlow meters. There is no implementation of meters in the Open vSwitch software switch (neither the kernel-based nor userspace switches)." 
> 
> 
> As per my understanding, meter support in openvswitch datapath is not present. Could you please specify the reason for the same, as I could see the support of meter in datapath of other software switches such as CPqD Softswitch and ofsoftswitch. 
> 
> 
> Also since no datapath support is present, so is there any other way to test meters in openvswitch without using hardware switches, as I would be requiring this for development and testing of "(EXT-379) - meter Action" 
> Thanks & Regards 
> -- 
> Deepanshu Saxena 
> Assistant System Engineer, 
> Tata Consultancy Services 
> Mailto: deepanshu.saxena1 at tcs.com 
> Website: http://www.tcs.com 
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