With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvdslLineConfTxSpeed
cvdsl Line Conf Tx Speed
1.3.6.1.4.1.9.10.87.1.1.8.1.4
Transmit speed for this modem. The corresponding modem on the other end of the VDSL line will have an equal cvdslLineConfRxSpeed value.
Back to CISCO-IETF-VDSL-LINE-MIB MIB page.
IPHost Network monitor allows you to monitor cvdslLineConfTxSpeed 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.
