technology, networking and IP telephony
Nortel IP Phones Broadcast Storm Advisory
You’re going to have to read this document for yourself. Somehow its possible for an i2002, i2004, i2007, 1120e, 1140e and 1150e to throw a loop into the network when the devices are powered by external power supplies as opposed to using a PoE (Power Over Ethernet) switch.
As a rule of thumb I enable Spanning Tree with Fast Learning on all our edge switches since the auto MDI-X feature makes it very easy for a user or inattentive network engineer to physically put a loop in the connect by connecting to edge ports with the same patch cable.
Cheers!
Update: Thursday December 18, 2008
I’ve fixed the broken link above… Thanks Bob!
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Great read, thanks for the advisory.
(Looks like a M3902 “digital set” in the picture however!)