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The Cisco 4948 is a layer 3 switch that allows creating access lists to filter traffic. It does support NAT as well.
Most Cisco multilayer (also called layer 3) have these features.
| The Cisco Catalyst 4948-10GE Switch is a wire-speed, low-latency, Layer 2-4, 1-rack-unit (1-RU), fixed-configuration switch for rack-optimized server switching. Based on the proven Cisco Catalyst 4500 Series hardware and software architecture, the Cisco Catalyst 4948-10GE offers exceptional performance, bandwidth, and reliability for low-density, multilayer aggregation of high-performance servers and workstations. |
Cisco WS-C4948-10GE-S General Information |
| Manufacturer: Cisco Systems, Inc |
| Brand Name: Cisco |
| Product Line: Catalyst |
| Product Series: 4900 |
| Product Model: 4948-10GE-S |
| Product Name: Catalyst 4948-10GE-S Layer 3 Ethernet Switch |
| Product Type: Layer 3 Switch |
Cisco WS-C4948-10GE-S Interfaces/Ports |
| Number of Ports: 48 |
| Gigabit Ethernet Port: Yes |
| Interfaces/Ports: 1 x RJ-45 Console Management |
| Interfaces/Ports: 48 x RJ-45 10/100/1000Base-T LAN |
Cisco WS-C4948-10GE-S Media & Performance |
| Connectivity Media: Twisted Pair 10/100/1000Base-T |
| Performance: 136Gbps Switching Capacity |
| Performance: 102Mpps Throughput at Layer 2 and Layer 3 |
Cisco WS-C4948-10GE-S I/O Expansions |
| Number of Expansion Slots: 2 |
| Expansion Slots: (2 Total) X2 Uplink |
Cisco WS-C4948-10GE-S Network & Communication |
| Layer Support: 4 |
| Layer Support: 3 |
| Layer Support: 2 |
Cisco WS-C4948-10GE-S Management & Protocols |
| Manageable: Yes |
|
Management:
Management Protocol: |
Cisco WS-C4948-10GE-S Processor & Chipset |
| Processor: 666MHz |
Cisco WS-C4948-10GE-S Memory |
| Standard Memory: 256MB |
| Memory Technology: SDRAM |
Cisco WS-C4948-10GE-S Software |
|
Operating System:
Cisco IOS Software Release 12.2(25)EWA or later |
Cisco WS-C4948-10GE-S Power Description |
| Input Voltage: 110V AC |
| Input Voltage: 220V AC |
| Input Voltage Range: 100V AC to 240V AC |
| Power Source: Power Supply |
| Redundant Power Supply: Yes |
Cisco WS-C4948-10GE-S Physical Characteristics |
| Form Factor: Rack-mountable |
| Dimensions: 1.71 Height x 17.29 Width x 16.14 Depth |
| Weight: 16.5lb |
Cisco WS-C4948-10GE-S Miscellaneous |
|
Additional Information:
|
Cisco WS-C4948-10GE-S Original Manufacturer Warranty |
| Standard Warranty: Not Applicable |