I recently installed the Dec 2007 update to my Windows 2003 based LMS 3.0 system which upgrades it to LMS 3.0.1. Device Discovery was changed in this update and is now part of CS instead of CM. Since this upgrade my device discovery times have gone from about 15 minutes to 7 hours. I am using the discovery method created by the Dec 2007 update which just migrates the settings from CM to CS so the module being used is CDP. My existing seed devices and IP address range filter was migrated correctly. I performed a sniffer trace and found all the extra time is apparently due to discovery treating Cisco IP Phones as valid Cisco devices that should be discovered via SNMP. I see discovery try SNMP queries on each IP Phone and the phone responds with an ICMP port unreachable because IP phones don't run SNMP. Discovery ignores this and goes through the configured timeouts and retries that are configured before giving up and moving on to the next one only to suffer the same time wasting queries again. My SNMP timeout is 3 seconds with 2 retries. This adds up when you have 1500 IP phones. Is this a bug or is there some way to stop this? I never had this problem with LMS 3.0 or LMS 2.X.