Cisco 2921 Scheda tecnica - Pagina 7

Sfoglia online o scarica il pdf Scheda tecnica per Router di rete Cisco 2921. Cisco 2921 16. 2900 series integrated services routers

Wireless and Mobility Services

Wireless LAN/WAN

The Cisco Integrated Services Routers supporting the Cisco Unified Wireless Architecture enable deployment of

secure, manageable wireless LANs (WLANs) optimized for remote sites and branch offices, including fast secure

mobility, survivable authentication, and simplified management. The Cisco Wireless LAN Controller Module on the

Cisco 2900 Series allows small and medium-sized businesses (SMBs) and enterprise branch offices to cost-

effectively deploy and manage secure WLANs. Cisco Wireless LAN Controllers work in conjunction with Cisco

lightweight access points and the Cisco Wireless Control System (WCS) to provide system-wide WLAN functions,

managing up to 6, 12, and 25 access points.

Wireless WAN

Cisco third-generation (3G) wireless WAN (WWAN) modules combine traditional enterprise router functions, such

as remote management, advanced IP services such as voice over IP (VoIP), and security, with mobility capabilities

of 3G WAN access. Using high-speed 3G wireless networks, routers can replace or complement existing landline

infrastructure, such as dialup, Frame Relay, and ISDN. Cisco 3G solutions support 3G standards High-Speed

Packet Access (HSPA) and Evolution Data Only/Evolution Data Optimized (EVDO) providing you with a true

multipath WAN backup and the ability to rapidly deploy primary WAN connectivity. For more information about 3G

solutions on Cisco Integrated Services Routers, please visit http://www.cisco.com/go/3g.

Integrated LAN Switching

The Cisco 2900 Integrated Services Routers (Cisco 2911 through Cisco 2951) support the new Cisco Enhanced

EtherSwitch

Service Modules, which greatly expand router capabilities by integrating industry-leading Layer 2 or

Layer 3 switching with feature sets identical to those found in the Cisco Catalyst 2960 and Catalyst 3650-E Series

Switches performing local line-rate switching and routing.

The new Cisco Enhanced EtherSwitch Service Modules take advantage of the increased power capabilities on the

Cisco 2900 ISRs. Additionally, the Cisco Enhanced EtherSwitch modules enable the newest Cisco power

initiatives, Cisco EnergyWise, Cisco Enhanced Power over Ethernet (ePoE), per-port PoE power monitoring, and

RPS-enabled PoE boost. These technologies allow you to meet increased endpoint power requirements without

increasing the total power consumption of the branch.

Application Services

As organizations continue to centralize and consolidate their branch-office IT infrastructure in an effort to reduce

cost and complexity, they are challenged to provide an excellent user experience, ensure continuous service

availability, and deliver business-relevant applications when and where they are needed. To address these

challenges, the Cisco 2900 Series provides the capability to host Cisco, third-party, and custom applications on a

portfolio of high-performance Cisco Services Ready Engine (SRE) modules that transparently integrate into the

router. The modules have their own processors, storage, network interfaces, and memory that operate

independently of the host router resources, helping to ensure maximum concurrent routing and application

performance while reducing physical space requirements, lowering power consumption, and consolidating

management.

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