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  3. May 2007

Re: FTP speed

Check the TCP/IP Attributes (CFGTCP Option 3) especially SEND BUFFER SIZE on the server side and RECIEVE BUFFER SIZE on the CLient side. IBM Defaults will slow you significantly on long latency links, notsomuch on local links.

- Larry

Dave Snyder wrote:
I am FTP'ing some large files from one AS400 to another. I am looking at iSeries Navigator's graph history to ensure the Ethernet card is not getting maxed out. I am checking the LAN utilization and communication IOP utilization, as well as all of the other values, on both sides, and none are coming close to maxing out. Our network folks indicate the line between the two is not maxed either. What else can I check to see where the bottleneck is? The FTP takes 2 ½ hours.

Dave


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