Cable modem and method thereof, computer readable medium and apparatus

A method for a cable modem in communication with a cable modem termination system, the method comprising:

• during an operation phase of the cable modem, acquiring and storing damaged channel information indicating a damaged channel among a plurality of channels between the cable modem and the cable modem termination system which is detected during the operation phase;
• during an initialization phase of the cable modem,
• adjusting a scanning sequence of the plurality of channels according to the stored damaged channel information so as to cause the damaged channel to have the latest scanning order;
• and
• scanning the plurality of channels according to the adjusted scanning sequence to determine, among the plurality of channels, a channel for performing communication between the cable modem and the cable modem termination system.

A non-transitory computer readable medium for use with a processor, the non-transitory computer readable medium having stored thereon instructions that, when executed by the processor, perform at least the following:

• during an operation phase of a cable modem, acquiring and storing damaged channel information indicating a damaged channel among a plurality of channels between the cable modem and the cable modem termination system which is detected during the operation phase;
• during an initialization phase of the cable modem,
• adjusting a scanning sequence of the plurality of channels according to the stored damaged channel information so as to cause the damaged channel to have the latest scanning order;
• and
• scanning the plurality of channels according to the adjusted scanning sequence to determine, among the plurality of channels, a channel for performing communication between the cable modem and a cable modem termination system.