How fast the Gigabit ethernet?

KHBAS00
pts.
Tags:
Ethernet
Our company has an iSeries model 870 and I have installed two 5700 Gigabit ethernet cards in two different LPARs. I connected them directly by a fiber cable. I set the max frame size to 8996. I have done some test (send large savf by ftp) and the maximum transmition rate was 17000 KB/sec. I think it is very weak, isn't it? Is it normal? We have on OS/400 V5R2M0, cum level C4244520. I have done performance collection and it shows the maximum usage is 7%!? I think I can load ethernet until 60%. What is the true? Thanks in advance for any answer or idea.
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If you are correctly using the syntax below, little b stands for bits and Big B stands for Bytes. 1KB/sec = 8Kbps.

The real question is if you are having performance problems, or is this a philisophical exercise? If you have performance issues, it’s possible that your AS/400 can’t compute as fast as your network is currently operating. Don’t focus too much on the utilization, unless you’re sure that you’re sending the traffic from the box. If you are, look at Duplex mismatching. Sometimes autonegotiation doesn’t work right and you could be configured at half duplex on one end, which will cause a number of errors.

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