Data Sheet
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Multicast enhancements DOCSIS 3.0 Multicast QoS addresses various limitations in the current Multicast QoS
implementation (for instance, QoS can now be applied to sub-interfaces and VPNs),
allowing a single QoS template to be applied to multiple multicast streams
Intelligent Multicast Admission Control (AC):
●
Integrates Multicast QoS with Unicast QoS under unified control model, simplifying
operation
●
Multicast service flows are deleted once all multicast streams stop and all members go
away, helping operators reclaim bandwidth
Option to disable IP Multicast echo per cable bundle allows operators to hide subscriber-
generated multicast traffic from other subscribers on the same cable subnet
Multicast in MPLS VPN / L3
VPN (mVPN) service (with
BPI+)
IP multicast support for MPLS/L3 VPN VRF
Ability to track and isolate streams and membership within a VPN by encrypting the
multicast stream with unique BPI SAIDs and keys across VPNs
CMTS Service Independent
Intercept (SII)
●
Transparency for data intercept (unlike cable-intercept)
●
Common architecture for voice and data
●
Controlled by Mediation Device, not call control equipment
●
Separates lawful intercept control from call control
●
Open interface for Mediation Device and Call Control partners
●
Documented in IETF Informational RFCs
Support for TAP2-MIB extensions requested by LEAs
●
Addresses PCMM scenarios for CPE behind CMs
●
Support for MPLS networks that segregate voice and data
Table 5 describes the maximum DOCSIS and Euro-DOCSIS 1.1 data rates supported on the Cisco
uBR7225VXR.
Table 5. Maximum DOCSIS and Euro-DOCSIS 1.1 Data Rates
Upstream Channel Width Modulation Scheme Baud Rate
Sym/sec
Maximum Raw Bit Rate
Mbit/sec
3.2 MHz 16-QAM
QPSK
2.56 M 10.24
5.12
1.6 MHz 16-QAM
QPSK
1.28 M 5.12
2.56
800 kHz 16-QAM
QPSK
640 K 2.56
1.28
400 kHz 16-QAM
QPSK
320 K 1.28
0.64
200 kHz 16-QAM
QPSK
160 K 0.64
0.32
Table 6 describes the maximum DOCSIS and Euro-DOCSIS 2.0 (A-TDMA mode) data rates
supported on the Cisco uBR7225VXR.
Table 6. Maximum DOCSIS and Euro-DOCSIS 2.0 (A-TDMA mode) Data Rates
Upstream Channel Width Modulation Scheme Baud Rate
Sym/sec
Maximum Raw Bit Rate
Mbit/sec
6.4 MHz 64-QAM
32-QAM
16-QAM
8-QAM
QPSK
5.12 M 30.72
25.60
20.48
15.36
10.24
3.2 MHz 64-QAM
32-QAM
16-QAM
8-QAM
QPSK
2.56 M 15.36
12.80
10.24
7.68
5.12
(54 pages)
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