Howdy,
I'm trying to diagnose a network problem on a DEC 3000/700
running dUnix 3.2c. The symptom is that all network connections
hang for several seconds and then come back. This happens
dozens of times an hour. This has been the case since we received
this box a few weeks ago.
I've noticed an anomaly on my ethernet interface:
# uptime
10:57 up 33 days, 16:32, 20 users, load average: 0.30, 0.22, 0.20
# netstat -I ln0
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
ln0 1500 <Link> 08:00:2b:9b:8d:86 23313915 144668 9088627 305 1477846
The "Ierrs" value seems exceptionally high. I compared these
with 7 other dUnix boxes and the highest Ierrs listed among them
was 756. I also checked an Irix, Cray, Solaris, and Linux box.
None of them had Ierr counts above a thousand.
I'm not sure whether the Ierrs value indicates a cabling
problem, an interface card problem, or a software problem.
I ran an ethernet analyzer on my twisted pair and our
network admin ran a check on the hub interface that my box
is on - neither test revealed anything.
I'm thinking this is a hardware problem of some type because none
of the other comparable Alpha machines suffer from this problem.
This network freeze effects all types of connections, telnet,
ftp, http, rcp, etc. I've looked through both uerf and syslog
messages with no luck. I've searched through the 1995 list
archive to no avail. Any and all help is appreciated, including
more pointers to RTFM.
Thanks.
--
Carl Privitt / Texas A&M / cprivitt_at_tamu.edu / (409)862-4106 / CIS Unix Systems
Received on Wed Apr 10 1996 - 22:31:55 NZST