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.
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DSG 3.0
DSG 3.0 Operational Considerations
MSOs using DSG 3.0 should be aware of the following:
There is no change to the configuration of DSG tunnels, classifiers, and tunnel groups
There is no change to the configuration of DSG forwarding
DSG 3.0 is enabled by enabling MDF on each desired cable-mac
DSG 3.0 is disabled by disabling MDF on the cable-macs
DSG 2.0 STBs on a given cable-mac continue to operate in 2.0 mode even when DSG 3.0 is enabled on the cable-mac.
Note: The use of DSG classifiers configured for unicast Destination IPs is not supported.
1.
Procedure 15-1: Enabling Multicast DSID-based Forwarding (MDF) and DSG Support for DOCSIS 3.0
DSG 3.0 requires MDF to be enabled. MDF should be enabled for each MAC domain (cable-mac) that will use DSG 3.0.
MDF is disabled by default.
2.
Shut down the desired cable-mac:
configure interface cable-mac <mac> shutdown
Enable MDF:
configure interface cable-mac <mac> cable mcast-fwd-by-dsid
Enable support on the desired cable-mac for DOCSIS 3.0:
configure interface cable-mac <mac> cable dsg mode 30DOCSIS_SUPPORT
Repeat the command above as needed for other cable-macs that should support DOCSIS 3.0.
Note: To disable DSG support for DOCSIS 3.0 (return to DOCSIS 2.0) enter the following command:
configure interface cable-mac <mac> cable dsg mode 20DOCSIS_SUPPORT
Restore the cable-mac to service:
configure interface cable-mac <mac> shutdown no