showdown transfering files with scp

mark.jacobs at mark.jacobs at
Wed Feb 8 11:44:30 PST 2006

I was using scp to copy several large (300-800mb) each files between two
Freebsd machines. Both are on the same hub, 100MB Ethernet connection.
The source box is FreeBSD 5.4 stable at a late October build date. The
target is running 6.0 stable at a current build date.


The first three files showed a transfer rate of about 3mb/sec and
transfer took about a 5-7 minutes for each file. After the third one
however the transfer rate dropped to 100-200 KB/sec. There was nothing
else going on in the internal network at the time.


Any ideas on what happened?


Mark Jacobs

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