With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcIfRNIDInfoSerialNumber
Cisco Fibre Element If RNID Info Serial Number
1.3.6.1.4.1.9.9.289.1.1.13.1.6
The sequence number assigned to the peer node during manufacturing. For example the serial number could be 000000023053.
Back to CISCO-FC-FE-MIB MIB page.
IPHost Network monitor allows you to monitor fcIfRNIDInfoSerialNumber on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.