With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csConfigTable
cs Config Table
1.3.6.1.4.1.9.9.126.1.1.1
The SONET/SDH configuration table. This table has objects for configuring sonet lines.
Back to CISCO-SONET-MIB MIB page.
IPHost Network monitor allows you to monitor csConfigTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.