Chapter 22: Channel Bonding
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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6.
Allow a modem within the MTCM-enabled mac domain to register.
Figure 90:
Snapshot from Config File with Attribute Mask Set for USCB
Non-Primary Channel Acquisition for Upstream Channel Bonding
The modem's primary upstream channel is the channel on which the modem performed initial ranging. It is this channel
that is displayed by the show cable modem command. All other upstream channels in the modem's Transmit Channel Set
(TCS) are considered non-primary upstream channels.
Under certain scaling conditions operators may see that an unacceptable number of upstream channel-bonded modems
register with upstream partial service. This feature can be used to assist modems to register with upstream full service by
forcing DOCSIS 3.0 modems with MTCM enabled to use only unicast ranging opportunities to acquire the non-primary
upstream channels specified in their TCC(s) during registration. This behavior is controlled by the TLV 46.7 sent in the REG-