Sunfire x4100 network interface drops for a few seconds !

From: Gary Brett (gary.brett@fidessa.com)
Date: Tue May 15 2007 - 12:36:34 EDT


Dear all

I have an x4100 that for some odd reason has lost its network link for a
matter of seconds but oddly doesn't report link-down in the messages
file ....only a link-up ??

Here is my output from /var/adm/messages (sandwiched between two
harmless login messages)

May 15 14:04:23 mybox root: [ID 702911 auth.notice] root SSH LOGIN FROM
x.x.x.x 63889 22 BY John Doe
May 15 15:52:16 mybox e1000g: [ID 801593 kern.notice] NOTICE:
pci8086,1011 - e1000g[0] : Adapter 1000Mbps full duplex copper link is
up.
May 15 15:52:53 mybox root: [ID 702911 auth.notice] root SSH LOGIN
/dev/pts/1 FROM x.x.x.x 65372 22 BY Oliver Twist

We have changed cables, even moved this box onto a new switch, and this
is the third time it has happened (in 2 weeks). It literally loses
connection for under 30 seconds, but that is a big problem especially
with this box

Just weird that there is a link-up message but no link-down or anything
else to diagnose the problem....fmdump, ipmitool etc report no issues
relating to the network card

If anybody could point me in the right direction with this, that would
be great

Cheers
Gary

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