Hello Ankur,
Buffer Size management is out of scope for Openvswitch and RYU SDN
Controller.
I have been investigating on several approaches to use queue based
solutions for one of the problem that I was looking to solve.
From my understanding,
1. You should be use *tc *linux utility to define queue size (or) buffer
size with limits such as no.of.packets it can buffer and associate it
with the port
2. Openvswitch do not have direct control over the property that you are
looking for (manipulating buffer properties which can be done using tc).
3. RYU SDN controller does not have API complex queue management
Also, you should be aware that OVS process packets in two modes fast
path and slow path. You may have to decide where to place the buffer and
depending on that you may have to either modify kernel or you can
completely achieve you goal with performance tradeoff.
NOTE: The above given description is based on my understanding, please
correct it in case of being wrong.
Thanks,
Prabhu
On 11/19/2017 01:38 AM, ANKUR SHETH wrote:
Hello all,
I actually intend to control the buffer size for the ingress as well
as egress traffic from the openvswitch.
I know that ovs internally uses linux tc utility to control the
traffic, but even after referring to tc command manual I am not able
to figure out how to manage the queue size of the buffers.
I am excited about working on queue management on ovs switches using
RYU SDN controller, but I am unable to find the correct direction even
after understanding linux tc.
Could you please suggest on how I can achieve it or guide me to some
documentation. Any help is appreciated.
Regards,
Ankur
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