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

[Ramzah Rehman]

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.
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