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cabling migration and line card swap-outs. If a cable operator wants to upgrade from a Cisco MC28C line card to a Cisco 5x20 Broadband
Processing Engine (BPE) in a Cisco uBR10012, the line card can be forced to fail over to "protect" mode. The Cisco MC28C line card can
be changed at an operator's individual pace with the Cisco 5x20 BPE, and wired up for future domains. The two domains that were in
protect mode will then be switched back to the corresponding interface/upconverters.
Table 1 outlines the hardware support matrix.
Table 1. Cisco RF Switch Hardware Support
Platform and Configuration Number of Cisco RF
Switches
7+1 Cisco uBR10012 and MC28C line card 2
7+1 Cisco uBR10012 and 5x20 BPE 2
4+1 Cisco uBR7246VXR and MC28C line card 2
8+1 Cisco uBR7246VXR and uBR7200 Series MC16X line card 2
8+1 Cisco uBR7246VXR and MC28C line card 4
HIGH AVAILABILITY THROUGH N+1 CONFIGURATION
The Cisco RF Switch can be installed in a system configuration that enables complete hardware and software redundancy. The advanced
high-availability capabilities of the CMTS hardware and software exceed PacketCable specifications for expected downtime and call
cutoff. The system hardware is designed to exceed "five nines" (99.999 percent) availability, including both unscheduled and scheduled
outages.
INCREASED OPERATIONAL FLEXIBILITY
Even when high availability is not initially needed to support a service deployment, full hardware redundancy provides the operator with
the option to defer a service call until the following business day. Similarly, hardware redundancy reduces ongoing operational costs by
eliminating the need for onsite spares. This is especially beneficial in remote areas or in situations where technicians support several
installations over a broad geographical area.
PRIMARY BENEFITS
• Creates revenue opportunities by enabling voice and commercial services with a fully redundant, highly available DOCSIS or Euro-
DOCSIS cable infrastructure
• Lowers operational costs by optimizing Cisco uBR system serviceability
• Protects investments with flexible configuration options when Cisco uBR systems are upgraded or the RF cable plant is reconfigured
• Maintains the efficiency of the RF plant or the DOCSIS or Euro-DOCSIS specification
• Provides maximum reliability by allowing completely passive implementation in the "working path," including latching relays to
maintain operation during power disruptions
• Allows complete testability to help ensure that redundant components are functional and that RF performance remains consistent
• Maximizes headend rack space with unmatched port density
Table 2 describes the primary features.
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