[ovs-discuss] Issues in "meter" action in OpenFlow

Ramzah Rehman ramzahrehman at gmail.com
Wed Dec 12 08:35:04 UTC 2018


Edit: I have 2 servers connected via 1Gbps Ethernet RJ45 cable.


On Wed, Dec 12, 2018 at 1:32 PM Ramzah Rehman <ramzahrehman at gmail.com>
wrote:

> I have tested meter action in OpenFLow. I have drawn following conclusions:
>
>
>    -
>
>    TCP
>    -
>
>       Conclusion: meter works fine for low rate-limiting values (till
>       ~100Mbps). However, for higher values, the expected bandwidth is relatively
>       very low.
>       -
>
>    *UDP:*
>    -
>
>       Conclusion: meter action not supported for UDP
>       -
>
>
>
> Please let me know Why I am seeing this behavior with TCP traffic? Is it
> expected? If so, How can I get expected bandwidth equal to the rate I
> specify in OpenFlow meter? Also, does meter action work for UDP traffic?
>
>
>    -
>
>    Testing metering feature
>    -
>
>       L:leaf
>       -
>
>       H:host
>       -
>
>       NA: not applicable
>
>
> Transport
>
> Protocol
>
> Server
>
> Client
>
> Avrg RTT ms
>
> TCPWin (KB)
>
> Actual Bandwidth
>
> (Mbps)
>
> Rate Limiting
>
> (Mbps)
>
> Time duration(s)
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 855
>
> None
>
> (1Gbps link)
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 3.25
>
> 3
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 29.7
>
> 30
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 57.5
>
> 60
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 92.2
>
> 100
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 131
>
> 150
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 164
>
> 200
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 230
>
> 300
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 282
>
> 400
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 331
>
> 500
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 361
>
> 600
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 398
>
> 700
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 436
>
> 800
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 489
>
> 1000 (1Gbps)
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 852
>
> 5000 (5Gbps)
>
> 10
>
> TCP
>
> H1
>
> L1
>
> 0.243
>
> 416
>
> 868
>
> 10000 (10 Gbps)
>
> 10
>
> UDP
>
> H1
>
> L1
>
> .243
>
> NA
>
> L1->H1: 815
>
> H1->L1 : 18.3
>
> 100
>
> 10
>
> Thank you.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openvswitch.org/pipermail/ovs-discuss/attachments/20181212/925c5f8e/attachment-0001.html>


More information about the discuss mailing list