Cisco 2811 Router Guide - Page 49

Cisco 2900 Series Modularity Features and Benefits The Cisco 2900 Series provides significantly enhanced modular capabilities (refer to Table 3) offering investment protection for customers. Most of the modules available on previous generations of Cisco routers, such as the Cisco 2800 Series, are supported on the Cisco 2900 Series. Additionally, modules can be used on other supported Cisco platforms to provide maximum investment protection. Taking advantage of common interface cards across a network greatly reduces the complexity of managing inventory requirements, implementing large network rollouts, and maintaining configurations across a variety of branch-office sizes. A complete list of supported modules, including a list of supported SFPs for the Cisco 2900 Series, is available at: http://www.cisco.com/go/2900. ISR Modules Cisco Service Module Cisco Enhanced High-Speed WAN Interface Card (EHWIC) Description • Each service module slot offers high-data-throughput capability: - Up to 4 Gbps aggregate toward the route processor - Up to 2 Gbps aggregate to other module slots over MGF • Service module (SM) slots are highly flexible with support for doublewide service modules (SM-D's), which are Service Modules that require two SM slots. SM-Ds in the Cisco 2921 and 2951 provide flexibility for higher-density modules. • A service module slot replaces the network module and the extension module for voice/fax (EVM) slots and is offered on Cisco 2911, 2921, and 2951 ISRs. • An adapter module enables backward compatibility with existing network modules, enhanced network modules (NMEs), and EVMs. • Service module slots provide twice the power capabilities relative to the network-module slots, allowing for flexibility for higher-scale and better-performance modules. • Power to service module slots can be managed by extensions similar to the Cisco EnergyWise framework, so your organization can reduce energy consumption in your network infrastructure. Full EnergyWise support will be available in future software releases. • T he EHWIC slot provides enhancements to the prior generation's high-speed WAN interface card (HWIC) slots while provide maximum investment protection by natively supporting HWICs, WAN interface cards (WICs), voice interface cards (VICs), and voice/WAN interface cards (VWICs). • Four integrated EHWIC slots on the Cisco 2901, 2911, 2921, and 2951 allow for more flexible configurations. • Each HWIC slot offers high-data-throughput capability: - Up to 1.6 Gbps aggregate toward the route processor - Up to 2 Gbps aggregate to other module slots over the MGF • Flexibility to support double-wide modules is enabled by combining two EHWIC slots. Up to 2 double-wide HWIC (HWIC-D) modules are supported. 94 Modularity Features and Benefits Cisco 2900 Series ISR Modules Cisco Internal Services Module (ISM) Cisco High-Density Packet Voice Digital Signal Processor (DSP) Module (PVDM3) Slots on Motherboard Compact Flash Slots Description • A single ISM slot provides flexibility to integrate intelligent service modules on an internal slot within the chassis • Each ISM slot offers high-data-throughput capability: - Up to 4 Gbps aggregate toward the route processor - Up to 2 Gbps aggregate to other module slots over the MGF • The ISM replaces the AIM slot; existing AIM modules are not supported in the ISM slot. • Power to ISM slots can be managed by extensions similar to the Cisco EnergyWise framework, so your organization can reduce energy consumption in your network infrastructure. Full EnergyWise support will be available in future software releases. • P VDM3 slots natively support PVDM3 modules, providing support for richer density for rich-media voice and video. • Each PVDM3 slot connects back to the system architecture through a 2 Gbps aggregate link through the MGF. • Investment protection for PVDM2 modules is supported through an adapter module. • Power to the PVDM slots can be managed by extensions similar to the Cisco EnergyWise framework, so your organization can reduce energy consumption in your network infrastructure. Full EnergyWise support will be available in future software releases. • Two external Compact Flash slots are available on the Cisco 2900 Series Integrated Services Routers. Each slot can support high-speed storage densities upgradeable to 4 GB in density. USB 2.0 ports • Two high-speed USB 2.0 ports are supported. The USB ports enable secure token capabilities and storage. 95