Odd network issue ... *very* slow scp between two servers

[Marc G. Fournier]

'k, I'm blind to start with ... I take it that this is the significant
part of the output:

Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
em0    1500 <Link#1>    00:07:e9:05:1b:2e 760865424 58003349 775965555     0     0

where the fxp devices don't show any Ierrs?  That works out to be ~7% ...

Dropping it to 10baseT/UTP appears to improve things by 10x:

1038785 bytes received in 6.86 seconds (147.89 KB/s)

And drop'ng it to 100baseTX, half-duplex makes an even larger difference:

1038785 bytes received in 0.49 seconds (2.01 MB/s)
1038785 bytes received in 0.14 seconds (6.89 MB/s)

The fxp devices are all running 100baseTX, full-duplex, and doing 10MB/s
between each other ...


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Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: scrappy at hub.org           Yahoo!: yscrappy              ICQ: 7615664