Cisco Systems 4948 Series User Manual
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Data Sheet

Cisco Catalyst 4948 Series Switch

High-Performance,Rack-OptimizedServer Switching

PRODUCT OVERVIEW

The Cisco® Catalyst® 4948 is awire-speed,low-latency,Layer2–4,1 ra ck unit (RU)fixed-configurationswitch forrack-optimizedserver switching. Based on the proven Cisco Catalyst 4500 Series hardware and software architecture, the Cisco Catalyst 4948 Series offers exceptional performance and reliability for low density, multilayer aggregation of high performance servers and workstations.

The Cisco Catalyst 4948 offers 48 ports of wire-speed10/100/1000BASE-Twith 4 alternative wired ports that can accommodate optional1000BASE-XSmallForm-FactorPluggable (SFP) optics*. Exceptional reliability and serviceability are delivered with optional internal AC or DC 1 + 1hot-swappablepower supplies and ahot-swappablefan tray with redundant fans (refer to Figures 1 and 2).

Figure 1. Cisco Catalyst 4948 Series Switch

Figure 2. Rear View of Cisco Catalyst 4948 with Dual Redundant Power Supplies and Removable Fan Tray

KEY FEATURES AND BENEFITS

Wire-SpeedPerformance for 10/1 00/1 000 Connectivity

The Cisco Catalyst 4948 delivers wire-speedthroughput with low latency fordata-intensiveapplications using a 96 Gbps switching fabric with a 72 Mpps forwarding rate in hardware for Layer2–4t raffic. Switching performance is guaranteed regardless of the number of route entries or Layer 3 and 4 services enabled.Hardware-basedCisco Express Forwarding routing architecture allows for increased scalability and performance.

*The Cisco Catalyst 4948 has 52 physical switching ports (48 10/100/1000 and 4 SFP) on the front panel. Up to 48 of these ports can be active at one time in any combination.

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