With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
hdsl2ShdslEndpointCurrSnrMgn
hdsl2 Shdsl Endpoint Curr Snr Mgn
1.3.6.1.2.1.10.48.1.5.1.2
The current SNR margin for this endpoint as reported in a Status Response/SNR message.
Back to HDSL2-SHDSL-LINE-MIB MIB page.
IPHost Network monitor allows you to monitor hdsl2ShdslEndpointCurrSnrMgn 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.