A telecommunication network device for implementing the DOCSIS standard during a transition from a coaxial cable network to a fiber-optic network is described. The device includes a memory including installed firmware for implementing a telecommunication gateway function in accordance with the DOCSIS telecommunication standard and a processor configured to update the installed firmware by downloading the update from a first TFTP server over a coaxial cable network, wherein the processor is further configured to update the installed firmware by downloading the update from a second TFTP server over a fiber-optic network.