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[Cisco FAQ] - What is a Wideband Downstream Channel?

explain its purpose.

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Cisco Employee

[Cisco FAQ] What is a Wideband Downstream Channel?

Consists of one or more [RF] QAM channels.

Uniquely identified by MPEG PID field (2-bytes)

Information is conveyed to WCM by WDCD (Wideband Downstream Channel Descriptor)

WDCD is transmitted every 2 seconds

WDCD is transmitted on all bundled NB channels associated (in the WB-NB association table) with the WB channel

WCM must re-register if 3consecutive WDCD are missed

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Cisco Employee

[Cisco FAQ] What is a Wideband Downstream Channel?

Consists of one or more [RF] QAM channels.

Uniquely identified by MPEG PID field (2-bytes)

Information is conveyed to WCM by WDCD (Wideband Downstream Channel Descriptor)

WDCD is transmitted every 2 seconds

WDCD is transmitted on all bundled NB channels associated (in the WB-NB association table) with the WB channel

WCM must re-register if 3consecutive WDCD are missed

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