With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcIfVendor
Cisco Fibre Element If Vendor
1.3.6.1.4.1.9.9.289.1.1.2.1.21
The connector unit ( e.g., for a GBIC ) vendor. If this is not applicable it returns a zero-length string. Since this is a characteristic of a physical port, this object is not applicable for Port Channel ports, i.e., the value is instantiated but its value is irrelevant.
Back to CISCO-FC-FE-MIB MIB page.
IPHost Network monitor allows you to monitor fcIfVendor on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.
