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WS-C4948E-S
Cisco WS-C4948E-S Catalyst 4948E 48-Port Gigabit Switch, 4x1...
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WS-C4948E-S is a managed Layer 3 data center switch with 48 Gigabit copper access ports, four fixed 10G SFP+ uplinks, and the IP Base software image. The non-PoE configuration connects separately powered servers rather than supplying endpoint power. Cisco Catalyst 4948E hardware uses front-to-back airflow and a 1U rack-mounted chassis for top-of-rack server access. The fixed uplink architecture requires no removable network card, while its optical interfaces accept compatible SFP or SFP+ transceivers. The discontinued WS-C4948E-E differs by including Enterprise Services software for enhanced routing. Within the Catalyst 4900 family, this configuration combines copper server connectivity with fiber uplinks rather than modular port expansion.
WS-C4948E-S price for new stock is $1,617.00, a 91.2% saving from the Cisco list price of $18,400.00. WS-C4948E-S refurb price is $393.75. WS-C4948E-S is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for WS-C4948E-S for additional pricing. Browse the full Cisco 4900 Catalyst Switches series or explore all Cisco products.
176 Gbps switching capacity carries traffic across the fixed port configuration, with 131 Mpps IPv4 forwarding and 110 Mpps IPv6 forwarding distinguishing the two traffic classes. A centralized 17.5 MB packet buffer accommodates burst traffic, and eight configurable queues per port provide traffic scheduling controls. WS-C4948E-S has 1 GB of DRAM, a 55000-entry MAC table, and a hardware route capacity of 57000 routes; software-tier limits remain separate from those hardware totals. Static routing, RIPv1, RIPv2, and EIGRP Stub are available under IP Base. OSPF Routed Access supports 1000 dynamically learned routes with Cisco IOS 15.2(1)E or later, rather than unrestricted OSPF. BGP, IS-IS, full EIGRP, and VRF-lite require Enterprise Services. 275W maximum power consumption provides the upper equipment-load figure for electrical planning; typical operation consumes 230W.
ORM Systems offers WS-C4948E-S new sealed or certified refurbished; new orders carry up to a 3-year extended warranty, certified refurbished orders up to 1 year, and both conditions have 30-day returns with terms applying. 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; firmware is verified and configurations are wiped to factory default. Specify the condition and required accessories on the PO; Cisco warranty and service ended October 31, 2022. Enterprise and volume orders support PO acceptance, Net-30 for government, RMA with advance replacement, and regional stock and RMA across the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS |
License Tier | IP Base |
Port Configuration | 48 x 1G copper / 4 x 10G SFP+ |
Max Power Draw | 275W |
Cooling | Redundant fans / front-to-back airflow |
Replaces | WS-C4948-S: August 1, 2013 / WS-C4948-10GE-S: February 28, 2013. |
In a global enterprise campus, the WS-C4948E-S Catalyst 4948E IP Base 48-port 10/100/1000 switch with four 10 Gb SFP+ uplinks serves as the aggregation layer at each wiring closet. It consolidates up to 48 edge devices and trunk links traffic over four 10 Gb uplinks into the core. Benefit: delivers 176 Gbps non-blocking throughput, reduces inter-switch latency by 15%, and scales seamlessly to support future 10 GbE expansion while ensuring consistent performance and simplified management.
In a VMware ESXi cluster, servers with multiple 1 GbE NICs connect to the WS-C4948E-S Catalyst 4948E IP Base switch’s 48 Gigabit ports. Four 10 Gb SFP+ ports aggregate uplinks to the distribution core using LACP. Benefit: achieves sub-1 ms latency and non-blocking performance for live migrations, optimizes vMotion traffic with hardware QoS, and supports high-density virtual workloads with 176 Gbps switching fabric and advanced Layer 3 routing.
In a 100-user branch office, the WS-C4948E-S Catalyst 4948E IP Base switch provides 48 Gigabit connections for desktops, IP phones, and wireless access points, plus four 10 Gb SFP+ uplinks to the WAN router. Utilizing built-in HSRP, EIGRP, and QoS features, it prioritizes voice and video conferencing traffic. Benefit: improves call quality by 30%, delivers 99.999% uptime through rapid failover, and simplifies deployment with centralized management and IP Base licensing.
When an existing installation uses the discontinued WS-C4948-S or WS-C4948-10GE-S, WS-C4948E-S provides a named replacement configuration for either older part. A replacement purchase still requires checking the existing uplink media and software requirements. Specify the exact installed predecessor and required connection media before issuing the PO.
When several data center locations need a common server-access configuration, the Catalyst 4948E supports 4094 active VLANs and 4094 switched virtual interfaces. These limits provide configuration boundaries, not a requirement to populate every interface. Include the required VLAN and interface plan in the purchase specification before standardizing the order.
When equipment must pass a staging review before release to an existing installation, the Catalyst 4948E has a recommended ROMMON release of 12.2(44r)SG10. The acceptance process should distinguish the boot firmware from the operating image. Record the required boot-firmware baseline and operating-image requirements before approving the PO.
Power delivery to connected endpoints
WS-C4948E-S has data-only Ethernet ports and supplies no inline endpoint power. Connected devices require separate power arrangements; increasing switch power-supply capacity does not add PoE.
Multigigabit copper server connections
WS-C4948E-S copper access ports stop at 1GbE. The 10G interfaces are SFP+ uplinks, so this configuration cannot provide native multigigabit copper server connections.
Active Cisco service coverage
WS-C4948E-S passed its last date of support on October 31, 2022. Cisco service has ended; the Catalyst 9300 is a current migration family.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| WS-C4948E-S |  WS-C4948-S |  WS-C4948-10GE-E |  WS-X4992 |  WS-C4948-E | |
|---|---|---|---|---|---|
| Depth | 493 mm | 409.956 mm | 409.956 mm | 12 inches | 409.956 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | 10/100/1000 | Gigabit Ethernet |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-mount | Rack-Mount 1U |
| Height | 44 mm | 44.45 mm | 44.45 mm | 3.5 inches | 44.45 mm |
| Manufacturer Part Number | WS-C4948E-S | WS-C4948-S | WS-C4948-10GE-E | WS-X4992 | WS-C4948-E |
| Memory | 1 GB | 256 MB | 256 MB | 512 MB | 256 MB |
| Switching Capacity | 176 Gbps | 96 Gbps | 136 Gbps | 320 Gbps | 96 Gbps |
| Weight | 8.62 kg. | 7.48 kg. | 7.48 kg. | 25 lbs | 7.48 kg |
| Width | 439 mm | 439.166 mm | 439.166 mm | 17.5 inches | 439.166 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 90 days, for dependable protection on every order. The exact term is confirmed on your quote, order confirmation and invoice.
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Reviewed on the 28 April 2024
IP Base sufficient for our network design.
Reviewed on the 16 October 2018
Stable switching.
Reviewed on the 23 November 2025
Satisfied.
Reviewed on the 27 March 2025
Predictable behavior.
Reviewed on the 10 April 2018
Good reliability.
WS-C4948E-S identifies Catalyst 4948E hardware with IP Base IOS and an AC power supply. WS-C4948E is the hardware identifier, while the -S configuration selects IP Base with AC power. The complete configuration includes 48 copper Gigabit access ports and four fixed 10G SFP+ uplinks.
WS-C4948E-S supports management through the serial console, CLI over Telnet or SSHv2, a web interface, and SNMP, including SNMPv3. SSH requires an appropriate cryptographic software image. A dedicated Ethernet management port provides a separate connection for administration, distinct from the server-access and uplink interfaces.
WS-C4948E-S is discontinued, with end of sale on October 31, 2017, and Cisco support ending October 31, 2022. Software maintenance ended October 31, 2018, and security support ended October 30, 2020. A reseller purchase does not restart Cisco maintenance or restore the expired support window.
ORM Systems offers WS-C4948E-S new sealed or certified refurbished, with new units carrying up to a 3-year extended warranty and refurbished units up to 1 year. Returns are available for 30 days in either condition; terms apply. Cisco's hardware warranty and service coverage ended October 31, 2022.
WS-C4948E-S includes IP Base, the middle Cisco IOS software tier for the Catalyst 4948E. LAN Base provides the basic switching tier, while Enterprise Services adds enhanced routing. IP Base supports limited routing rather than the unrestricted protocol capabilities of Enterprise Services, so software requirements must match the quoted configuration.
WS-C4948E-S is a named replacement for the discontinued WS-C4948-S and WS-C4948-10GE-S. Their end-of-sale dates were August 1, 2013, and February 28, 2013, respectively. Replacement purchasing should identify the installed predecessor explicitly rather than treating all switches carrying the 4948 name as interchangeable configurations.
The Catalyst 4948E provides four fixed uplink cages supporting compatible 1G SFP or 10G SFP+ connections. These interfaces are separate from the 48 copper access ports and do not require a removable uplink card. Specify compatible transceivers, connection speed, and fiber reach for the intended uplink connections.
WS-C4948E-S supports an optional second internal power supply rather than shipping with two supplies as standard. The AC configuration uses PWR-C49E-300AC-R, with PWR-C49E-300AC-R/2 available for the redundant position. Specify the second supply explicitly when the purchase requires internal power redundancy rather than assuming it accompanies the base order.
No, WS-C4948E-S does not provide PoE on its copper Ethernet ports. The internal power supply operates the switch itself rather than supplying power to attached endpoints. Servers or other connected devices require their own power arrangements, and adding a redundant switch power supply does not change this limitation.
WS-C4948E-S includes IP Base software, whereas WS-C4948E-E includes Enterprise Services for enhanced routing. Both configurations are discontinued. The former fits existing installations requiring the IP Base feature set; the latter addresses legacy requirements for protocols such as BGP or IS-IS that IP Base does not include.
WS-C4948E-S uses front-to-back airflow, whereas WS-C4948E-F-S uses back-to-front airflow. Both configurations include IP Base and are discontinued. The airflow difference determines which legacy configuration matches the cabinet's intake and exhaust arrangement; the choice should follow the existing hot-aisle and cold-aisle orientation rather than software requirements.
WS-C4948E-S has four fixed 10G SFP+ uplinks, while C9300-48T-A uses modular uplinks. The discontinued Catalyst 4948E configuration suits replacement orders that preserve its fixed interfaces. The current Catalyst 9300 configuration suits buyers selecting a modular uplink architecture, with the required uplink hardware specified separately on the order.
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