[53520] in North American Network Operators' Group
Re: PM3's crashing
daemon@ATHENA.MIT.EDU (Robert Boyle)
Sat Nov 16 19:54:42 2002
Date: Sat, 16 Nov 2002 19:54:05 -0500
To: "Mark Radabaugh" <mark@amplex.net>, nanog@merit.edu
From: Robert Boyle <robert@tellurian.com>
In-Reply-To: <07a901c28d2b$aad5e590$9978a541@amplex.net>
Errors-To: owner-nanog-outgoing@merit.edu
At 11:50 PM 11/15/2002 -0500, you wrote:
>Anyone seeing odd crashes on Lucent PM3's tonight? We have boxes dying all
>over the network with hard lockups. The machines are in different physical
>locations with different telcos. It smells alot like a DOS of some sort.
For some odd reason, both of our NYC POPs with different CLECS in different
locations had the same problem periodically with different random PM3s. We
now block all SNMP from all addresses except our management networks toward
our PM3s and they have been fine ever since. You will need to create an
outbound Ethernet filter from your router or an inbound filter on the PM3
Ethernet or WAN for this. Just in case the bug would still show with an
inbound filter, I suggest you filter on a non-PM3 box if possible. We run
ComOS 3.9.1b1 if it is of any consequence.
gnapsny3> ver
Lucent PortMaster PM-3 ComOS 3.9.1b1
System uptime is 136 days 8 hours 50 minutes
-Robert
Tellurian Networks - The Ultimate Internet Connection
http://www.tellurian.com | 888-TELLURIAN | 973-300-9211
"Good will, like a good name, is got by many actions, and lost by one." -
Francis Jeffrey
