With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cSpLinkState
Cisco Sp Link State
1.3.6.1.4.1.9.10.73.1.3.1.1.2
The status of this link.
Back to CISCO-SP-MIB MIB page.
IPHost Network monitor allows you to monitor cSpLinkState on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.