I've recently purchased an ASA 5550 and checked the boot process to make sure it starts up ok. The follwing message then appears: Total SSMs found: 1SSM-4GE, SN JAF1221AMQE, HW ver 1.0, FW ver 1.0(0)8WARNING: Incompatible SSM-4GE module (Cisco 4-Po...

Through the Cisco courses it always asks you to switch STP on, and why wouldn't it. But recently somebody suggested to disable it for the voice vlan. This explaination I got was due to UDP sending packets regardless and therefore it would still cause...