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WS-C4948E-F-E
Cisco WS-C4948E-F-E Catalyst 4948E-F 48-Port Gigabit Switch,...
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WS-C4948E-F-E provides front-exhaust Layer 3 server-access switching through 48 Gigabit RJ-45 ports and four fixed 10G SFP+ uplinks. Back-to-front airflow distinguishes this managed data center switch from rear-exhaust configurations and determines its orientation within a server rack. The Catalyst 4948E-F combines a 1U chassis with the Enterprise Services software image and an included AC power supply. Its copper connections carry server traffic rather than supplying endpoint power, while its uplink cages support fiber connections toward aggregation. Within the Catalyst 4900 family, the discontinued WS-C4948E-F-S carries IP Base instead of Enterprise Services; that distinction matters when matching replacement inventory to an existing routing configuration.
WS-C4948E-F-E price for new stock is $26,565.00. WS-C4948E-F-E refurb price is $1,156.56. WS-C4948E-F-E is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for WS-C4948E-F-E for additional pricing. Browse the full Cisco 4900 Catalyst Switches series or explore all Cisco products.
176 Gbps switching capacity accommodates traffic across the fixed access and uplink interfaces without adding a network module. 131 Mpps IPv4 forwarding and 110 Mpps IPv6 forwarding provide separate throughput figures for dual-stack sizing. OSPF, EIGRP, IS-IS and BGP support dynamic routing under Enterprise Services, alongside static routing and RIPv1/RIPv2. WS-C4948E-F-E has 1 GB of DRAM for system operation, while a 17.5 MB shared packet buffer handles queued traffic during bursts. The forwarding resources accommodate 55000 MAC entries and 57000 routes, so address and routing requirements should be checked independently of interface density. 275W maximum power consumption establishes the electrical allocation; the 230W typical figure is not the maximum reservation. Operation within 0°C to 40°C also requires the rack layout to preserve the specified airflow direction.
WS-C4948E-F-E is offered new sealed or certified refurbished, with ORM warranties of up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units; Cisco warranty coverage ended October 31, 2022. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, clean boot, optics bay recognition, PSU status and fan status, with firmware verified and configuration wiped to factory default. Specify condition and required accessories before ordering; returns cover 30 days on every condition, with terms applying. For enterprise and volume orders, PO is accepted, government Net-30 is available, and RMA includes advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS |
License Tier | Enterprise Services |
Port Configuration | 48 x 1G RJ-45 / 4 x 10G SFP+ |
Max Power Draw | 275W |
Replaces | WS-C4948-E: August 1, 2013 / WS-C4948-10GE-E: February 28, 2013 |
Lifecycle Status | Cisco support ended October 31, 2022 |
In a high-density data center rack, IT teams deploy the WS-C4948E-F-E ES (48×1G + 4×10G SFP+ AC PS FR EXT) as a Top-of-Rack aggregation switch. By linking 48 server NICs at 10/100/1000 Mbps with four 10 Gbps fiber uplinks to the core, this setup delivers sub-millisecond latency, non-blocking throughput, and hitless failover. Outcome: maximized east-west traffic performance, seamless VM migration, and improved SLA compliance for cloud workloads.
A multinational enterprise configures the WS-C4948E-F-E ES in the campus core to interconnect floor-level distribution switches via its 4 SFP+ 10 Gbps ports and serve 48 Gigabit desktop and IP-phone endpoints. Leveraging advanced QoS, VLAN segmentation, and FR-EXT redundancy, the switch ensures predictable voice/video performance and rapid convergence under Spanning Tree or FabricPath. Outcome: scalable 1/10G uplink architecture, consistent user experience, and simplified network operations.
A manufacturing plant deploys the FR-EXT-rated WS-C4948E-F-E ES on the factory floor to aggregate sensor networks, PLCs, and video surveillance cameras. Its wide-temperature range, redundant AC power supplies, and SFP+ uplinks to the control center maintain continuous 1 Gbps connectivity under extreme heat, vibration, and EMI. Outcome: zero unscheduled downtime, deterministic data collection, and compliance with industrial uptime requirements.
When consolidating an existing server-access estate, VLAN inventory can determine whether a replacement switch fits the configuration already in service. The family supports 4094 active VLANs, providing a specific ceiling for that review. Map the required VLANs and their interface assignments before specifying the replacement quantity on the purchase order.
When purchasing hardware for a monitoring lab, simultaneous traffic captures can make analyzer-session requirements more important than additional access connections. The family supports eight bidirectional SPAN sessions. Identify the required source interfaces and capture destinations, then verify the intended session configuration during staging before releasing the purchase order.
Native 10G copper server connections
The RJ-45 access interfaces stop at Gigabit Ethernet. The four 10G SFP+ interfaces do not provide native 10GBASE-T connections for copper server access.
Active Cisco hardware service coverage
Cisco hardware support ended October 31, 2022. WS-C4948E-F-E cannot satisfy a purchasing requirement for an actively supported Cisco hardware lifecycle.
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| WS-C4948E-F-E |  WS-C4948E-S |  WS-X4993 |  WS-X4920-GB-RJ45 |  WS-C4948E-F | |
|---|---|---|---|---|---|
| Depth | 493 mm | 493 mm | 18 inches | 12 inches | 493 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | 10/100/1000 | 10/100/1000 | Gigabit Ethernet |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-mount | Rack-mount | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 1 inches | 1 inches | 44 mm |
| Manufacturer Part Number | WS-C4948E-F-E | WS-C4948E-S | WS-X4993 | WS-X4920-GB-RJ45 | WS-C4948E-F |
| Memory | 1 GB | 1 GB | 512 MB | 256 MB | 1 GB |
| Power Consumption | 275W | 275W | 350 W | 75 W | 275W |
| Switching Capacity | 176 Gbps | 176 Gbps | 640 Gbps | 52 Gbps | 176 Gbps |
| Weight | 8.62 kg | 8.62 kg. | 20 lbs | 15 lbs | 8.62 kg. |
| Width | 439 mm | 439 mm | 17 inches | 17 inches | 439 mm |
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Reviewed on the 19 March 2018
Front to back airflow suited our data center.
Reviewed on the 22 September 2026
Consistent performance.
Reviewed on the 6 April 2022
Reliable switch.
Reviewed on the 2 April 2026
Good cooling design.
Reviewed on the 29 May 2023
Works well.
WS-C4948E-F-E identifies a Catalyst 4948E-F switch with Enterprise Services software and an AC power supply. WS-C4948E identifies the hardware model with 48 copper access ports and four SFP+ uplinks; F identifies front exhaust, and the final E identifies the Enterprise Services configuration.
Catalyst 4948E-F supports web access, a serial-console CLI, Telnet, SSH with a cryptographic Cisco IOS image, SNMP, Cisco Network Assistant and an XML programmatic interface. Specify the intended management image and access configuration before staging, particularly when remote administration depends on encrypted CLI access.
No, WS-C4948E-F-E reached its last date of Cisco hardware support on October 31, 2022, after end of sale on October 31, 2017. Cisco hardware service is unavailable beyond that support milestone. Purchasing remaining inventory does not restart the Cisco support lifecycle or extend those dates.
ORM offers WS-C4948E-F-E new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units. Returns are available for 30 days on every condition; terms apply. Cisco warranty coverage ended October 31, 2022.
Catalyst 4948E-F software configurations are LAN Base, IP Base and Enterprise Services, with WS-C4948E-F-E supplied as Enterprise Services. LAN Base provides Layer 2 switching, IP Base adds limited routing, and Enterprise Services adds advanced routing. Identify the required software entitlement explicitly when matching hardware to an existing configuration.
WS-C4948E-F-E replaces the discontinued WS-C4948-E and WS-C4948-10GE-E configurations. Their end-of-sale dates were August 1, 2013, and February 28, 2013, respectively. Match the replacement against the original software configuration and uplink connections rather than assuming an older switch's attached media transfers unchanged.
Yes, WS-C4948E-F-E supports an optional second internal AC power supply, ordered as PWR-C49E-300AC-F/2. The standard configuration includes an AC supply rather than a populated redundant pair. Specify the second supply on the purchase order when the equipment configuration must provide internal power redundancy.
Catalyst 4948E-F supports 1G and 10G operation across its four fixed SFP+ uplink cages using compatible media. These interfaces are built into the chassis rather than added through an uplink card. Match the selected media speed and fiber connection to the aggregation equipment before ordering the complete configuration.
WS-C4948E-F-E supports OSPF, EIGRP, IS-IS and BGP through its Enterprise Services software, together with static routing and RIPv1/RIPv2. These capabilities distinguish the supplied software configuration from the limited routing offered by IP Base. Confirm the software entitlement when replacing a switch already participating in dynamic routing.
WS-C4948E-F-E includes Enterprise Services, whereas WS-C4948E-F-S includes IP Base with static routing, RIPv1/RIPv2 and EIGRP Stub. Both configurations are discontinued. The Enterprise Services model suits legacy replacements requiring advanced dynamic routing; the IP Base model suits matching inventory whose routing requirements remain within its limited feature set.
WS-C4948E-F-E uses back-to-front airflow with front exhaust, whereas WS-C4948E-E uses front-to-back airflow with rear exhaust. Both configurations are discontinued and carry Enterprise Services. The F model suits legacy racks arranged for front exhaust; the other configuration suits replacement requirements that depend on rear exhaust.
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