[netperf-talk] Generating network traffic on a dual port NIC with a single computer using netperf???

[Werner Hoehenrieder]

Netperf group,

I'll start to say I'm definitely a netperf novice - but I've exhausted all resources I can find so far.

I'm trying to use netperf to send out a traffic stream from one port of a NIC card (10Gb/sec NIC)  to the other port of the card (dual port 10Gb/sec NIC).

I want to do this on a single computer -  not separate netserver and netperf systems.

I thought I had it with the following:

#> netserver -L 192.168.0.11,4

#> netperf -H 192.168.0.11,4  -L 192.168.0.12

My dual port 10G NIC has address's 192.168.0.11 and 12 assigned to it.

These commands seemed to work - but when I disconnected the optical cable between the ports - it just kept running, so traffic wasn't going that way..

I'm guessing that the traffic might be going through some internal loopback setting? - but don't know how to turn this feature off.

Any thoughts greatly appreciated!!

NOTE:  The main requirements I have are to do this test with just the single dual port 10G nic card and using just 1 computer.

Background info:

System:  Dell server with PCIe interface slots
System running OpenSuse 11.3
Netperf2.4.5

NIC is a Brocade 1020 CNA card with static IP address's 192.168.0.11 and 192.168.0.12 assigned to the two ports.  There is an optical cable connecting the two ports (for test purposes).

Thanks in advance.
Werner
Werner Hoehenrieder
Staff HW Engineer, Platform Development
120 Holger Way
Brocade Building 2
San Jose, CA 95134
Phone: (408) 333-6477


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