With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dot1agCfmLtrIngressPortId
dot1ag Cfm Ltr Ingress Port Id
Ingress Port ID. The format of this object is determined by the value of the dot1agCfmLtrIngressPortIdSubtype object. If the dot1agCfmLtrIngress object contains the value ingNoTlv(0), then the contents of this object are meaningless.
Back to IEEE8021-CFM-MIB MIB page.
IPHost Network monitor allows you to monitor dot1agCfmLtrIngressPortId on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.