Chapter 19: DOCSIS Set-top Gateway Configuration
STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved. 630
DS Cable Interface
The major components of the DS Cable Interface are:
DS Channel List
DSG Timers
Vendor-specific Parameters
DSG tunnel Group(s)
The first three components make up the DSG Configuration portion of the DCD. This portion of the DCD may be sent
without any DSG tunnels provisioned on the interface for the purpose of redirecting STBs to downstreams on which DSG
tunnels are provisioned.
If no DSG tunnels are provisioned on the DS cable interface, the following command must be entered to enable the
sending of DCDs with only DSG Configuration on that interface:
configure interface cable-downstream 5/0 cable dsg dcd-enable
The NO version of the command disables the sending of the DCDs as long as there are no DSG tunnels configured on the
downstream interface.
If there is at least one DSG tunnel on the specified interface, the behavior is as if the dcd-enable command was entered.
The NO version of the command has no affect on the sending of the DCD.
To determine if a DCD is being sent on an interface, use the command:
show interface cable-downstream [<slot>/<port>] cable dsg
The Enable DCD column displays a value of true when a DCD is being sent on the interface.
Downstream Channel List
The DSG channel list is not included in the DCD unless the DS cable interface contains a reference to a downstream channel
list that contains at least one entry. The command to associate the DS cable interface with a downstream channel list is:
configure interface cable-downstream <slot>/<port> cable dsg ds-frequency-list <dsListId>
Note that a DS channel list can be referenced by one or more DS cable interfaces.
The command to add entries in the DS channel list is:
configure cable dsg ds-frequency-list <dsListId> frequency <freq>
The command to view which list is associated with an interface is: