ProCurve 3500-24 Software-Rate Limit

[philipisaia]

Hi everyone,

I have a question about the software-rate limit of an openflow instance.  In the 

HP Switch Software OpenFlow Administrator's Guide K/KA/WB 15.14 

it says that the maximum software-rate limit is 10000pps which is true.  It also says that this is the maximum resource an openflow instance can use.

Well I have created 3 OpenFlow instances (Instances 1,2,3) and each one of them is at 10000pps software-rate limit. 

I connected the instances in series so Host1(Sender) <---> Instance 1 <---> Instance 2 <---> Instance 3 <---> Host2(Receiver)

The traffic is created by iperf at host 1 and reaches instance 1, then goes to 2,3 and eventually reaches host 2.

I am sending UDP traffic at 75Mbps which results at about 6700 packets per second.  So according to the rate limit, there should be no packet losses. Since I am below the 10000 limit.

But there is 84% loss. Around 5650-5700 packets get dropped. 

Is there any way I can lift that software-rate limit?  I do not really care if this is a precaution.  I use the switch for research, so there is no other traffic going into the switch.  

Has anybody faced such a problem? Is there any solution?

Can you suggest anything?

Thanks a lot