With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
adslAturConfTargetSnrMgn
ADSL Atur Configuration Target Snr Margin
1.3.6.1.2.1.10.94.1.1.14.1.18
Configured Target Signal/Noise Margin. This is the Noise Margin the modem must achieve with a BER of 10-7 or better to successfully complete initialization.
Back to ADSL-LINE-MIB MIB page.
IPHost Network monitor allows you to monitor adslAturConfTargetSnrMgn 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.