With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
lldpRemChassisIdSubtype
lldp Remote Chassis Id Subtype
1.0.8802.1.1.2.1.4.1.1.4
The type of encoding used to identify the chassis associated with the remote system.
Back to LLDP-MIB MIB page.
IPHost Network monitor allows you to monitor lldpRemChassisIdSubtype 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.