Re: FTP 400 to 400 toooo slooow

[Larry Bolhuis <lbolhui@xxxxxxx>]

> What's the speed of your slowest communications card?

  Slowest card running TCP/IP is 2617 Ethernet.

> What else is on the FDDI besides your 400s?

  A Cisco Switch, a coupla Synoptics 5000 hub/switches and some Big NT Servers.
At the time we tested there was very little traffic on the FDDI, certainly not
enough to consume bettern 90% of the bandwidth!

> If your slowest card is a 10Mbit ethernet
> card, you are doing pretty good.  The max bytes you could put through that
> card is about 1250 Kbyte, which includes all of the tcp/ip overhead.

  How does the slowest card effect the speed of the FDDI.  In this case we
tested using addresses that are on the FDDI only so the Ethernet cards was not
in the TCP/IP route.

>         If you are using ethernet cards, you might want to tweak your line
> description(s) to use duplex and set your frame size to the maximum,
> depending on what your network supports.
> That might get you some improvement.  The max I've ever seen our 10Mbit card
> ever do was 1063 Kbytes at 4 in the morning with the wind at its back.

  ..down hill..

  - Larry

-- 
Larry Bolhuis         |
Arbor Solutions, Inc  | Two rules to success in life:
(616) 451-2500        | 1. Never tell people everything you know.
lbolhui@ibm.net       |
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