Chapter 3: C4/C4c CMTS Specifications
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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The maximum number of modems/eMTAs is 30,000; the remaining devices must be STBs
51,000 downstream service flows
51,000 upstream service flows
51,000 downstreams classifiers
32,000 downstream service flows per 16D or XD CAM
13,200 upstream service flows per 24U CAM
9,000 upstream service flows per 12U CAM
4,500 subscribers per 12U CAM
6,600 subscribers per 24U CAM
16,000 subscribers per 16D and XD CAMs
320 simultaneous Service Independent Intercept (SII) taps
The number of IPv4 and IPv6 supported routes by the C4 and C4c CMTSs are:
Table 7.
IPv4 and IPv6 Supported Routes
Total
PDRI
Dynamic
Static
IPv4
32,000
IPV6
[1]
28,000
[2]
16,000
10,000
[3]
2,000
1. The IPv6 routes are in addition to the IPv4 total.
2. The total of IPv6 routes allowed is the sum total of the PDRI, Dynamic, and Static routes.
3. The total number of IPv6 dynamic routes is a combination of OSPFv5 and IS-IS IPv6 routes.
VoIP Call Capacities
The following Voice over Internet Protocol hardware and call limits apply to both the C4 and C4c CMTSs configured for
DSx/DQoS VoIP or PacketCable voice.
The Multimedia Terminal Adapter (MTA) is a telephony modem: