Intermittent network issues with Freebsd 6.2
dparussalla at baysidegrp.com.au
Thu Feb 15 01:16:36 UTC 2007
I did that already and it works for few days and dropping out. now I have
change network cards to Intel (em). Hopefully this will solve the issue.
From: Glen Van Lehn [mailto:gvanlehn at ccsf.edu]
Sent: Thursday, 15 February 2007 9:01 AM
To: dparussalla at baysidegrp.com.au; freebsd-stable at freebsd.org
Subject: Re: Intermittent network issues with Freebsd 6.2
>>> "Dimuthu Parussalla" <dparussalla at baysidegrp.com.au> 02/11/07 3:54 PM
I am having intermittent network issues with our IBM X236 dual xeon server.
Server comes with two bge network cards. At random intervals internal lan
drops out. And then few minutes later it comes back online.
So far I can only find some interface errors on netstat -i. Can anyone help
me to resolve this issue.
Please refer to attached files and below outputs for more information.
interrupt total rate
irq52: ips0 75446 17
irq30: ahd0 81 0
irq31: ahd1 15 0
irq1: atkbd0 69 0
irq3: sio1 74 0
irq4: sio0 67 0
irq6: fdc0 90 0
irq14: ata0 47 0
irq16: bge0 bge1+ 1395326 315
irq19: uhci1 15 0
irq23: ehci0 1 0
cpu0: timer 8845847 1998
cpu3: timer 1 0
cpu1: timer 2 0
cpu2: timer 8830658 1995
Total 19147739 4326
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs
bge0 1500 <Link#1> 00:11:25:e9:7f:58 392325 880 449420 0
bge0 1500 192.168.1 lan 342652 -
4175 - -
bge1 1500 <Link#2> 00:11:25:e9:7f:59 369744 1648 363688 0
Do you have access to the network switch that your server connects to? The
stats on the port may show CRC errors or the log may show carrier off/on
transitions indicating that 'Auto-negotiation' isn't stable. I've seen this
a lot with 100FDx connections and a few times with GbE. Sometimes it helps
to change the port speed/duplex settings from 'Auto' to <fixed whatever> [or
vice versa ;]. My preference has been to use 'Auto' if it works, and, if
it doesn't, to nail down the server settings, then see whether nailing the
switch port setting or leaving the switch port in 'Auto' is best.
glen van lehn
city college san francisco
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