Using the built in 10mbs Ethernet on my PM 7500 I have been transferring file between it and my PC through a local FTP site set up on my PC. The upload and downloading is extremely slow. Under 100kbs always. Is there any way to improve this. The PC has a 10/100 and my router + switch is also 10/100. Plus it is a "switch" not a hub or high speed hub. Aside from trying a PCI card what can I do to get 10mbs performance. I know it won't be that fast, but at least the 1mbs or close I would expect. I am using transmit as my client on the Mac.
Are you saying 100 kilobits per second (Kbps) or 100 kilobytes per second (KB/sec)? Big diff.
And how are you measuring that? Is that the instantaneous file transfer speed reported by your ftp client? Or is it an average? Or is it via a tool like IPNetMonitor - which shows you the actual traffic thru the NIC, as an accurate running average, not just file data movement?
WRT ethernet speed...
10base-T is 10 Mbps *raw*. Minus overhead for ethernet itself, IP, and TCP,... figure 8.5 Mbps max (if you have only two nodes running flat out with large MTU's).
You're converting 10base to 100base in that switch. That's fine, assumin it's not a LinkSys router (they have ultra slow switches).
Then there's the PC... MS' IP stack basically sucks, even after its manually tuned. It's designed for a low interrupt environment and depends on having a VERY fast CPU to get anything done. Plus or minus MTU size, duplex issues, and the quality of the FTP server sofware you're using, I've found that even a PowerMac 7100/66 can swamp out and crash a 2+ GHz WinXP box.
FWIW, - Dan.
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