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Date: Wed, 15 Oct 2014 00:05:25 -0700
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Subject: scp large file: broken pipe + Limiting closed port RST response
From: Chris Stankevitz <chrisstankevitz@gmail.com>
To: freebsd-questions <freebsd-questions@freebsd.org>
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Hello,

Regarding this setup:
- two identical computers with Intel I350 gigabit ethernet
- single ethernet cable connects both computers
- one computer using scp to copy a 500 GB file to the other (~100 MB/sec)
- 9.2-RELEASE-p10 (FreeNAS)
- scp -o NoneSwitch=yes -o NoneEnabled=yes /path/to/file
root@10.1.1.2:/path/to/file

1. Why does the scp connection fail ~10 minutes into the transfer with
"broken pipe"?

2. Why does this transfer generate log entries like the following:
Limiting closed port RST response from 1235 to 200 packets/sec
Limiting closed port RST response from 1288 to 200 packets/sec
Limiting closed port RST response from 1298 to 200 packets/sec
Limiting closed port RST response from 759 to 200 packets/sec
Limiting closed port RST response from 293 to 200 packets/sec

3. Could (1) and (2) be related?

Thank you,

Chris