Problem with dump over SSH: Operation timed out
bramschoenmakers at xs4all.nl
Fri Aug 10 10:49:49 PDT 2007
Op vrijdag 10 augustus 2007, schreef u:
> This really looks like a broken PMTU discovery.
> Is this still the case? After the firewall changes you did?
> Things may be different now. But, if a router in the path
> is filtering all ICMP traffic then the problem will remain.
> Try this on both hosts:
> sysctl net.inet.tcp.path_mtu_discovery=0
> sysctl net.inet.tcp.mssdflt=1000 (just to be safe,
> the default on 4.x is 1400, which can be big
> on 6.x is just 512)
> Please, just use scp to do your testing.
> When you rule out the possibility of a problematic
> network, you will add the (gzip|bzip2) & dump parts.
Thank you for those suggestions, it's appreciated. Although I get the same
results with setting those values both on the server and on the client. SCP
starts full speed, but at 20% of the 200 MB file it starts to stall. All ICMP
traffic was open on both firewalls at that time.
What is mind? No matter. What is matter? Never mind.
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