With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csiNportState
csi Nport State
1.3.6.1.4.1.9.9.378.1.1.1.1.6
The operational state of the virtual N-port.
Back to CISCO-SVC-INTERFACE-MIB MIB page.
IPHost Network monitor allows you to monitor csiNportState 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.