Cisco 4900 Switches, Main Features& Model Comparison Cisco Catalyst 4900 Series Switches deliver high-performance, low-latency wire-speed Layer 2 and 3 services in a small form factor (1 or 2 rack units).
The Catalyst 4900 Series is ideal for space-constrained deployments.
Data Center: Top-of-Rack Server Aggregation •
Architectural Flexibility : Increased link use without buffer overflow and Layer 2 and 3 support at the access layer as needed
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Investment Protection : Smooth transition from 10/100/1000 to 10 Gb Ethernet interfaces
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Simplified Management : Edge switch auto-provisioning