Cisco 1 Port for the CMTS Spare SPA-24XDS-SFP= Scheda Tecnica
Codici prodotto
SPA-24XDS-SFP=
Data Sheet
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Cisco 1-Gbps Wideband Shared Port Adapter for the Cisco
uBR10012 Universal Broadband Router
uBR10012 Universal Broadband Router
The Cisco
®
1-Gbps wideband shared port adapter (SPA) (Figure 1) for the Cisco
uBR10012 Universal Broadband Router enables cable operators to offer high-speed
broadband connectivity at scale and to enable new IP services. This product supports
both the traditional DOCSIS
®
1.x and 2.x cable modems and the emerging wideband
solutions. The new Cisco 1-Gbps wideband SPA works in conjunction with the Cisco
5x20U Broadband Processing Engine to meet the ever-increasing needs of cable
operators that are delivering IP-based data, voice, and video services to an ever-
increasing number of subscribers.
Figure 1. Cisco 1-Gbps Wideband SPA
Product Overview
The distributed and scalable architecture of the Cisco uBR10012 Universal Broadband Router can
be expanded using the Cisco 1-Gbps wideband SPA to meet the most challenging large-scale IP
service needs of cable operators. More specifically, the Cisco 1-Gbps wideband SPA delivers
critical cable modem termination system (CMTS) functions, such as:
●
Capacity for 24 DOCSIS Annex B and 18 Annex A downstream channels
●
Integrated DOCSIS Media Access Control (MAC) processing
●
Connectivity to third-party edge quadrature amplitude modulations (QAMs) using dedicated
dual Gigabit Ethernet interfaces
●
On-board packet-bonding engine that stripes IP packets across multiple DOCSIS
downstream channels
The Cisco 1-Gbps wideband SPA performs all traditional and wideband DOCSIS processing of
egress packets, including BPI+ encryption. The wideband MPEG packets are aggregated and
encapsulated using the DOCSIS 3.0 packet-bonding technique (that is, User Datagram Protocol
[UDP], IP, and Ethernet protocols [that is, packets are DOCSIS over wideband MPEG over UDP
over IP over Ethernet]).
Each Cisco uBR10012 chassis can support up to two Cisco 1-Gbps wideband SPAs by utilizing a
carrier card that occupies slots 1 and 2 in the I/O portion of the chassis. Equally important, these