With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
prtGeneralSerialNumber
prt General Serial Number
1.3.6.1.2.1.43.5.1.1.17
A recorded serial number for this device that indexes some type device catalog or inventory. This value is usually set by the device manufacturer but the MIB supports the option of writing for this object for site-specific administration of device inventory or tracking.
Back to Printer-MIB MIB page.
IPHost Network monitor allows you to monitor prtGeneralSerialNumber on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.