With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
docsDevServerTftp
DOCSIS Device Server Tftp
1.3.6.1.2.1.69.1.4.4
The IP address of the TFTP server responsible for downloading provisioning and configuration parameters to this device. Returns 0.0.0.0 if the TFTP server address is unknown or is not an IPv4 address. This object is deprecated and is replaced by docsDevServerConfigTftpAddress.
Back to DOCS-CABLE-DEVICE-MIB MIB page.
IPHost Network monitor allows you to monitor docsDevServerTftp on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.