Cisco UBR-MC3GX60V-RPHY network interface processor

Line Card for Cisco uBR10012 Series Universal Broadband Routers supporting remote PHY, Base HW The migration to IP-based cable solutions just got a little easier with the Cisco® uBR‑MC3GX60V-RPHY Broadband Processing Engine (BPE). This high capacity, DOCSIS® 3.0-capable and C-DOCSIS/Remote-PHY-compliant line card for the Cisco uBR10012 Universal Broadband Router is shown in Figure 1. The new BPE has been streamlined, with upstream and downstream physical (PHY) layer functions relocated to the Cisco Coaxial Media Converter located at a remote site while MAC and DOCSIS software features are still retained in the center. With this new architecture and the introduction of a set of mature protocols, Cisco offers our cable customers with 1Gbps+ service and a smooth migration path towards an IP-based cable solution. With digital-optical and central control, the Cisco uBR-MC3GX60V-RPHY BPE is also easier to operate.

There are 72 DOCSIS downstream and 60 upstream channels per card, so the Cisco uBR-MC3GX60V-RPHY BPE supports the same benchmark for scalable, fast, and cost-effective DOCSIS 3.0 Cable Modem Termination System (CMTS) solutions maintained by the Cisco uBR-MC3GX60V Broadband Processing Engine (BPE). With the new Cisco uBR-MC3GX60V-RPHY BPE, the Cisco uBR10012 platform scales up to 576 modular DOCSIS downstream channels and 480 upstream channels, (approximately 24 Gbps of downstream throughput and 14.4 Gbps of upstream throughput) in a single, carrier-class chassis as part of our Remote-PHY solution. On top of this, with the introduction of virtual combining, the bandwidth can be further scaled in the Ethernet domain to support more CMC hosted upstream channels and as many CMC downstream channels as required. The limit for downstream channels is based on the available bandwidth to be delivered to and from each CMC. This evolution moves the traditional RF combining of multiple service areas into CMTS ports to the Ethernet domain, allowing virtual combining to greatly enhance network scalability.