With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cflIfStatusTable
Cisco Flex Link If Status Table
1.3.6.1.4.1.9.9.471.1.2.1
A list of interfaces which are members of Flex Links.
Back to CISCO-FLEX-LINKS-MIB MIB page.
IPHost Network monitor allows you to monitor cflIfStatusTable 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.