----- Original Message -----

From: "Kristian Kielhofner" <kris at kriskinc.com>

I'm sure some of you have seen this elsewhere but it seems the more places I share it the more confirmations I receive:

http://blog.krisk.org/2013/02/packets-of-death.html

Long story short some oddly configured Yealink devices could cause our Intel gigabit controllers to lose link.

Over here on the voice side of things, this reminds me of a floor-killer bug I had to chase down, with some help from Mike Cargile, when I was at VICI Marketing. We'd upgraded our Asterisk installations from 1.2.24 or 6 to 1.2.30.2, and everything was fine. Then we upgraded to 30.4, and progressively, my entire floor would collapse, at least once a day. The problem, it turned out after 6 hours of groveling with wireshark, was that something in the IAX driver was supposed to be resetting a 16-bit counter, and wasn't (or the reverse; it's been 4 years), and the driver would get clogged up as old sessions weren't reaped, eventually causing the entire 255 seat fronter/closer call center to come to a halt. It took us over a week to finally nail it down; it was intermittent as well, based on I no longer remember what; some days, we'd be fine. Some days, we'd come down 2 or 3 times. The debugging sagas certainly make great reading, though; thanks again. Cheers, -- jra -- Jay R. Ashworth Baylink jra at baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274