Chapter 14: Cable-side Configuration
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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Specifications
The following MAC domain specifications apply to the C4/c CMTS:
MAC domains operate independently of one another. A direct result is that the scope of channel bonding is limited to
the MAC domain
Each CM will utilize channels from only one MAC domain at a time.
Each downstream or upstream channel of a C4/c CMTS can be associated with exactly one MAC Domain.
The DCAM can support up to 8 MAC domains.
The UCAM can support up to 24 MAC domains.
A MAC domain must reside on a single UCAM and a single DCAM.
MAC Domain Configuration
The C4/c CMTS allows the creation of a MAC domain with more flexibility in terms of the allowed upstream and
downstream channel mix.
Note: There are several new DOCSIS 3.0 configuration items for these MAC domains. Many of these will impact the way
that DOCSIS 3.0 CMs will initialize.
MAC domains require upstream channels from a UCAM and downstream channels from a DCAM. These MAC domains may
be created and removed by means of CLI commands. See the table below for a summary view of the applicable commands.
For more information and additional commands, see Command Line Descriptions.
Table 56.
MAC Domain Configuration Commands
Description
Command
This command configures a MAC domain
interface to be used with channels from a
UCAM or DCAM.
Use the [no] option to remove the cable-mac
interface for the specified MAC ID.
configure interface cable-mac <mac> cable description <text>
[no]
Example commands:
configure interface cable-mac 1 description "MAC-DOMAIN 1"
configure interface cable-mac 2 description "MAC-DOMAIN 2"
configure interface cable-mac 3 description "MAC-DOMAIN 3"
configure interface cable-mac 4 description "MAC-DOMAIN 4"