A cable Modem is a tool that modulates and demodulates an Analog service Signal to Encode and deCode Digital statistics this is transmitted, offering bi-directional statistics verbal excHange through Radio Frequency channels the use of hybrid fibre-Coaxial Cable (HFC cable) and Radio Frequency Over Glass (RFoG) structure. This cable and structure provide the high Bandwidth required for Internet Access.
A cable Modem gives a Bridge between a customer’s LAN and the coaxial cable Network of the ISP. In other words, it features as a bridge in addition to a modem.
The cable modem is necessarily complex so that you can Characteristic in both those capacities. It operates each in the bodily Layer (1) and the facts link layer (2) with respect to the OSI version of network layout, further to having Functionalities at different layers. The cable modem has its own IP address as a network Node and consequently operates within the Network Layer (3), and it supports Protocols inside the Transport Layer (4) and the Software layer (7).
A cable modem may contain a Router, which is normally kept functionally separate, in the same housing. The router is on occasion referred to as a residential Gateway. Both the cable modem and the router have their very own IP cope with and MAC deal with to identify every Component thru their Interfaces on the LAN and the WAN.
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