Chapter 2: C4/C4c CMTS Features
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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channels available on the fiber node if the modem first ranges on a channel in that static bonding group. It will add a
system operation mode to limit the size of the TCS based on the number of upstream channels the modem is using for its
service flows.
Voice Service Flow Load Balancing by CAC Capacity will give preference to channels that have the lightest overall
utilization.
Subscriber Management Filter Expansion will increase the filter entries per Subscriber Management Filter group from 31
to 63 filter entries.
Release 8.2.5 Features
The following is a list of the new features in Release 8.2.5:
Annex A Mixed Modulation (Q64 / Q256) per F-connector (blocks of 4 channels)
Intelligent RCS Assignment/Balancing Control
Differential Services Code Point (DSCP) Marking for DHCP Packets
PCMM IPv4/IPv6 Classifiers and gates ECN Support (MM-N-13.0697-1)
Differential Services Code Point (DSCP) Marking for Downstream Subscriber Traffic
RADIUS Password Challenge
Support for Multi-Tuner Cable Modems
Bonding of Eight Upstream Channels (24U CAM)
Improved Partial Service
IPv6 VoIP Support
Intelligent TCS Assignment
5-85 MHz Support
Multi-protocol BGP Support with IPv6 Address Family
TCS Reduction Enhancement
Ping Stats
Automatic Gain Control (AGC) Correction with Enable/Disable Control
BSoD L2 VPN Configuration via CLI
Configure cable global CLI Commands
Annex A Mixed Modulation (Q64 / Q256) per F-connector (blocks of 4 channels) will support simultaneous use of 256
QAM modulation and 64 QAM modulation on a single F-connector from the XD-CAM. This functionality is required for