With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cesEndLineNum
ces End Line Num
1.3.6.1.4.1.351.110.5.3.3.1.1.3
This object identifies the physical line on which connection is provisioned. The value in this object object must match with the value specified in 'cesPortLineNum' for a given logical port(cesEndPortNum).
Back to CISCO-WAN-CES-CONN-MIB MIB page.
IPHost Network monitor allows you to monitor cesEndLineNum 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.