[12208] in Hotline Meeting
e25-137 VS3100 Hippocrates
daemon@ATHENA.MIT.EDU (hoffmann@MIT.EDU)
Tue Dec 8 10:10:51 1992
From: hoffmann@MIT.EDU
Date: Tue, 8 Dec 92 10:10:37 -0500
To: salemme@Athena.MIT.EDU
Cc: service@Athena.MIT.EDU, hotline@Athena.MIT.EDU, op@Athena.MIT.EDU
In-Reply-To: salemme@Athena.MIT.EDU's message of Mon, 7 Dec 92 18:20:30 -0500 <9212072320.AA02645@asta.MIT.EDU>
From: salemme@Athena.MIT.EDU
Date: Mon, 7 Dec 92 18:20:30 -0500
> Ron Hoffmann informed us this WS was loosing packets per NOC
If a workstation is "loosing" packets, it can mean that
there's a prblem with its connection to the network. The
cable can be loose or broken, or something might be wrong
with the ethernet board inside the system.
e25-137 is setup for remote access, so I telnet'd in
and ping'd it from itself...it didn't seem to be dropping
any packets.
...
Pinging yourself doesn't necessarily prove anything about the
operational state of the network interface of a machine. Some
machines will internally loop back such packets, ie they never
go out on to the network.
The packet loss was noticed when pining the machine from E40
from two different subnets, at the same time that pings to
other machines in the same room resulted in no packet loss.
I'll grant that the condition appears to be intermittent since
there does not appear to be any problem at present. Frankly
I'm not even sure why we're monitoring that machine in the NOC
anyhow. Is it an OPS-managed server?
-Ron
