Final answer:
A Cable Modem Termination System sends a RNG-RSP message to modify a cable modem's timing offset, power levels, and frequency to ensure proper synchronization and communication with the network.
Step-by-step explanation:
When a Cable Modem Termination System (CMTS) sends a Ranging Response (RNG-RSP) message, it is providing instructions to the modem to adjust its transmission parameters. These instructions may include modifications to the modem's timing offset, power levels, and frequency. The RNG-RSP is part of the initialization and registration process that ensures proper communication between the cable modem and the network's infrastructure.
The timing offset adjustment helps to synchronize the transmission timing between the cable modem and the CMTS to avoid data collision. Adjustments to the power level ensure that the signal strength is within the optimum range for communication. The frequency adjustments are made to select the appropriate channel for data transmission, which is key to maintaining a stable connection. These parameters help in maintaining network quality and efficiency.