WS-C4948E-F-S Cisco 48 Port Catalyst Switch
Cisco WS-C4948E-F-S Catalyst 4948E-F 48-Port Gigabit Ethernet Switch
Enterprise Cisco Catalyst 4948E-F 48-Port Gigabit Ethernet Switch with 10G Uplinks for High-Performance Data Center Networking
The Cisco WS-C4948E-F-S Catalyst 4948E Managed Ethernet Switch is a high-performance, low-latency networking solution designed for data centers, Top-of-Rack deployments, enterprise campus networks, and server aggregation environments. Featuring 48 x 10/100/1000 Gigabit Ethernet RJ-45 ports and 4 x 1G/10G SFP+ uplink ports, the switch provides high-density connectivity and flexible high-speed fiber uplinks for demanding network infrastructures.
Delivering up to 176 Gbps of switching capacity and approximately 131 Mpps of forwarding performance, the WS-C4948E-F-S supports wire-speed Layer 2 and Layer 3 switching for business-critical applications. Its low-latency architecture makes it well suited for server connectivity, network aggregation, and high-performance enterprise deployments.
The switch features four 1G/10G SFP+ uplink ports, providing scalable fiber connectivity to core, aggregation, and other high-speed network devices. This combination of 48 Gigabit Ethernet access ports and 10GbE uplinks enables organizations to efficiently expand network capacity while maintaining reliable performance.
Powered by Cisco IOS Software, the Cisco Catalyst 4948E supports advanced networking capabilities including IPv4, IPv6, VLANs, BGP, OSPF, EIGRP, multicast, EtherChannel, LACP, advanced QoS, access control lists, 802.1X authentication, and port security, depending on the installed software image and configuration.
The WS-C4948E-F-S features back-to-front airflow with port-side exhaust, making it suitable for compatible data center cooling designs and Top-of-Rack environments. Support for redundant hot-swappable power supplies and fan modules helps improve system availability and simplifies maintenance in mission-critical networks.
Housed in a compact 1U rack-mountable form factor, the Cisco WS-C4948E-F-S Catalyst 4948E 48-Port Gigabit Ethernet Switch delivers enterprise-class reliability, scalable connectivity, and low-latency performance while maximizing rack space efficiency.
Ideal for data center networking, Top-of-Rack deployments, enterprise campus networks, server aggregation, high-speed network expansion, and business-critical infrastructure, the Cisco WS-C4948E-F-S provides a reliable and scalable switching platform for demanding enterprise and data center environments.
Product Specifications – Cisco WS-C4948E-F-S Catalyst 4948E 48-Port Gigabit Ethernet Switch with 4 × 1G/10G SFP+ Uplinks
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| Specification | Details |
|---|---|
| Product Name | Cisco WS-C4948E-F-S Catalyst 4948E 48-Port Gigabit Ethernet Managed Switch |
| Manufacturer | Cisco Systems |
| Part Number | WS-C4948E-F-S |
| Product Series | Cisco Catalyst 4900 Series |
| Product Family | Cisco Catalyst 4948E |
| Product Type | Managed Ethernet Switch |
| Port Configuration | 48 × 10/100/1000 Gigabit Ethernet RJ-45 + 4 × 1G/10G SFP+ Uplinks |
| Downlink Ports | 48 × Gigabit Ethernet RJ-45 |
| Downlink Port Speeds | 10/100/1000 Mbps |
| Uplink Ports | 4 × 1/10 Gigabit Ethernet SFP+ |
| Uplink Interface Type | SFP / SFP+ |
| Switching Capacity | Up to 176 Gbps |
| Forwarding Rate | Up to 131 Mpps |
| Switching Performance | Wire-Speed Layer 2 and Layer 3 Forwarding |
| Latency | Low-Latency Architecture |
| Layer Support | Layer 2 and Layer 3 |
| Operating System | Cisco IOS Software |
| IPv4 Support | Yes |
| IPv6 Support | Yes |
| VLAN Support | Yes |
| Routing Support | Static and Dynamic Layer 3 Routing |
| Routing Protocols | BGP, OSPF, EIGRP and other supported Cisco IOS routing protocols |
| Multicast Support | Supported |
| Link Aggregation | EtherChannel / LACP Support |
| Quality of Service (QoS) | Advanced QoS and Traffic Prioritization |
| Security Features | ACLs, 802.1X, Port Security and Secure Management |
| Network Access Control | IEEE 802.1X Support |
| High Availability | Redundant Hot-Swappable Power Supply and Fan Options |
| Power Supply | Redundant AC Power Supply Support |
| Cooling | Redundant Hot-Swappable Fan Modules |
| Airflow | Back-to-Front |
| Airflow Direction | Port-Side Exhaust |
| Hot-Swappable Components | Power Supplies and Fan Modules |
| Management | CLI, SNMP and Cisco IOS Management Tools |
| Form Factor | 1U Rack-Mountable |
| Rack Space | 1 Rack Unit (1RU) |
| Deployment Type | Top-of-Rack, Server Aggregation and Enterprise Networking |
| Application | Data Centers, Enterprise Campus and High-Speed Network Infrastructure |
| Reliability | Enterprise and Data Center Grade |
| Condition | Refurbished |
| Use Cases | Data Center Networking, Top-of-Rack Deployments, Enterprise Campus Networks, Server Aggregation, Network Expansion, Business-Critical Infrastructure |
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FAQs
Q1. How many ports does the WS-C4948E-F-S provide?
It offers 48 Gigabit Ethernet RJ-45 ports and four 1G/10G SFP+ uplink ports for high-speed network connectivity.
Q2. What is the benefit of the back-to-front airflow design?
The back-to-front airflow improves cooling efficiency and is optimized for hot-aisle/cold-aisle data center deployments.
Q3. Does this switch support Layer 3 routing?
Yes. It supports advanced Layer 2 and Layer 3 switching and routing features through Cisco IOS Software.
Q4. Is the WS-C4948E-F-S suitable for data center environments?
Yes. It is specifically designed for enterprise data centers, offering wire-speed performance and low latency for demanding applications.
Q5. What type of uplinks does this switch support?
The switch includes four uplink ports that support both 1 Gigabit and 10 Gigabit Ethernet using SFP/SFP+ transceivers.
