FreeBSD 10.1-REL - network unaccessible after high traffic
julian at freebsd.org
Mon May 25 02:31:14 UTC 2015
On 5/24/15 11:12 PM, Cs wrote:
> Hi all,
> I have two FreeBSd 10.1-RELEASE servers connected to each other.
> They were connected via cross link, but they are connected to a
> cisco switch now. When transferring huge files (50-500GB backup
> files) via Gigabit (it is important!) the network randomly dies. The
> backup runs every day/week and sometimes the connection is ok for
> months sometimes it happens twice a week. When the network dies I
> can log in to the server via IPMI and use the console everything is
> OK, but can't send anything out on the network. ifconfig em0 down/up
> doesn't help nor netif restart. The problem never occured when I
> used 100Mbit connection between them, but it was 3com NIC (xl),
> gigabit adapter is Intel (em0). When I limit the transfer rate
> (rsync bandwith limit or ipfw pipe) the problem is much more rare.
did you have the problem with no switch?
is he duplex setting correct?
> I tried to set these tuning parameters on both servers with
> different buffer size but nothing helped:
> # cat /etc/sysctl.conf
> # cat /boot/loader.conf
> geom_mirror_load="YES" # RAID1 disk driver (see gmirror(8))
> Any ideas? Thanks guys!
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