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WS-C3850-24XS-E
Cisco WS-C3850-24XS-E Catalyst 3850 24-Port 10 Gigabit Ether...
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WS-C3850-24XS-E is a stackable Layer 3 fiber access and aggregation switch with 24 fixed 1G/10G SFP+ ports and the IP Services feature set. The Cisco Catalyst 3850 Series uses a 1U rack chassis for enterprise access and aggregation, without native copper access ports or endpoint PoE. A separate uplink bay accepts C3850-NM-4-10G for four 10G ports, C3850-NM-8-10G for eight 10G ports, or C3850-NM-2-40G for two 40G ports; the base configuration includes no network module. Access switches and other fiber-connected equipment use the fixed interfaces, while module selection determines the additional uplink connections. The discontinued WS-C3850-24XS-S sibling carries IP Base instead, distinguishing the installed software tier between otherwise matching 24-port SFP+ switch configurations.
WS-C3850-24XS-E price for new stock is $3,909.15, a 92.1% saving from the Cisco list price of $49,661.00. WS-C3850-24XS-E refurb price is $989.60. WS-C3850-24XS-E is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-C3850-24XS-E for additional pricing. Browse the full Cisco 3850 Catalyst Switches series or explore all Cisco products.
640 Gbps switching capacity sets the maximum bandwidth reference for this fiber configuration. 454.55 Mpps forwarding provides the packet-processing figure for traffic sizing. OSPF, EIGRP, BGPv4 and IS-ISv4 support advanced unicast routing, while OSPFv3 and EIGRPv6 extend dynamic routing to IPv6. PIM-SM and PIM-DM handle multicast routing. WS-C3850-24XS-E carries 4 GB DRAM for working memory and 4 GB flash for software storage. The forwarding database holds 32000 MAC addresses, and IPv4 scale reaches 24000 combined ARP and learned-route entries, establishing limits for address and routing-table planning. StackWise-480 stacks nine members with 480 Gbps stack bandwidth and a single management address. A 205.5W consumption ceiling applies at full traffic with C3850-NM-8-10G installed, providing an AC-load reference for that configuration rather than a power-supply rating. Three fans provide active cooling; this configuration is not fanless.
WS-C3850-24XS-E is offered new sealed or certified refurbished, with up to 3-year extended ORM warranty on new orders, up to 1 year on certified refurbished orders, and 30-day returns on every condition; terms apply. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, clean boot and optics bay recognition; firmware is verified and configuration wiped to factory default. Specify condition, quantity and required accessories on the PO, and confirm Cisco's original-owner Enhanced Limited Lifetime Warranty eligibility and discontinuance limits; Cisco service ends April 30, 2027. POs are accepted, government buyers receive Net-30, and volume procurement has RMA with advance replacement through UK, EU, US and MEA regional stock and RMA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS XE |
License Tier | IP Services |
Port Configuration | 24 x 1G/10G SFP+ / modular uplink bay |
Stacking | StackWise-480 / nine members / 480 Gbps |
Lifecycle Status | End of sale April 30, 2022; support ends April 30, 2027 |
Replacement PID | C9300X-24Y |
In a multi‐rack virtualization environment, the WS-C3850-24XS-E delivers 24×10G SFP+ ports to aggregate top‐of‐rack switches into a high‐performance leaf/spine fabric. Its IP Services IOS enables advanced OSPF/EIGRP routing, VXLAN EVPN for seamless VM mobility, and under‐lay/overlay orchestration. Benefit: Consistent low-latency connectivity, non‐blocking throughput and simplified network operations at scale.
For large enterprise campuses requiring high‐bandwidth, resilient fiber links, the Catalyst 3850 24-port 10G fiber switch provides a secure core/distribution layer. Leveraging Cisco TrustSec, Flexible NetFlow and hierarchical QoS, it segments voice, video and data traffic over 10G trunks to edge switches. Benefit: Deterministic service delivery with end‐to‐end policy enforcement and up to 99.999% uptime.
In a regional ISP network, the WS-C3850-24XS-E aggregates multiple 10G subscriber rings and business circuits using MPLS L2VPN/L3VPN and advanced BGP features. Its IP Services suite supports fast convergence, IPv6 dual-stack, and traffic engineering. Benefit: Scalable multi-tenant service delivery with carrier-grade SLAs, dynamic bandwidth allocation and simplified provisioning.
When a branch is consolidating fiber links from smaller access switches, jumbo-frame compatibility can affect the replacement order. This configuration supports frames up to 9198 bytes. Confirm the required frame size on connected equipment, then specify compatible optics, fiber type and link distance before the PO.
When an enterprise rollout adds routed interfaces across separate departments or network segments, the configuration supports 1000 switched virtual interfaces. Count the interfaces required by the proposed design rather than treating physical port count as the routing limit, and specify the intended interface configuration before ordering.
When equipment is purchased for staging in an unheated room, cold-start temperature becomes an acceptance constraint. The switch requires at least 0°C ambient for a cold start. Specify a suitable startup environment and include that requirement in the commissioning checklist before releasing the hardware purchase order.
25G native fiber access connections
WS-C3850-24XS-E fixed SFP+ ports stop at 10G. C9300X-24Y provides 24 native 25G fiber ports and is the current replacement for purchases requiring faster fiber access connections.
PoE-powered copper endpoint connections
WS-C3850-24XS-E has fiber access ports and supplies no endpoint PoE. Phone, camera and access point powering requires a separate powered copper access switch.
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| WS-C3850-24XS-E |  WS-C3850-24S-S |  WS-C3850-48P-L |  WS-C3850-48U-S | |
|---|---|---|---|---|
| Depth | 450 mm | 450 mm | 450 mm | 488 mm |
| Ethernet Technology | 10 Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Flash Memory | 4 GB | 2 GB | 2 GB | 2 GB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44.5 mm | 44.5 mm | 44.5 mm | 44.5 mm |
| Manufacturer Part Number | WS-C3850-24XS-E | WS-C3850-24S-S | WS-C3850-48P-L | WS-C3850-48U-S |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB |
| Power Consumption | 205.5W at 100% traffic with C3850-NM-8-10G installed | 109.75W at full traffic with C3850-NM-2-10G | 135.96W (no PoE load; C3850-NM-4-10G installed) | 127.7W (excluding PoE load / tested with C3850-NM-4-10G) |
| Switching Capacity | 640 Gbps | 92 Gbps | 176 Gbps | 176 Gbps |
| Weight | 6.1 kg | 7.03 kg | 7.9 kg | 8 kg. |
| Width | 445 mm | 445 mm | 445 mm | 445 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
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dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviewed on the 10 June 2021
10G fiber switch with IP Services performed consistently.
Reviewed on the 23 July 2017
Electronic licensing simplified activation.
Reviewed on the 23 May 2021
Great fit for enterprise fiber access.
Reviewed on the 21 April 2023
Cisco stability with advanced features.
Reviewed on the 29 February 2024
Handled traffic loads without degradation.
WS-C3850-24XS-E identifies a Catalyst 3850 switch with 24 SFP+ Ethernet ports and IP Services. WS-C3850 identifies the family, 24 identifies the port count, XS identifies the SFP+ configuration and E identifies IP Services. The base configuration includes one PWR-C1-715WAC power supply and occupies 1U.
WS-C3850-24XS-E supports CLI management through the console, SSH or Telnet, SNMP monitoring, and centralized administration through Cisco Prime Infrastructure. Cisco DNA Center supports licensed automation and assurance functions. SSH and encrypted SNMPv3 require a cryptographic software image, so confirm the installed image and intended management access before commissioning.
Yes, WS-C3850-24XS-E is discontinued: end of sale was April 30, 2022, and Cisco support ends April 30, 2027. New service attachment ended April 30, 2023, and contract renewals ended July 29, 2026. C9300X-24Y is the current replacement; continued Cisco service requires an existing eligible entitlement.
ORM Systems offers WS-C3850-24XS-E new sealed or certified refurbished. New orders include up to 3-year extended ORM warranty; refurbished orders include up to 1 year. Returns are 30 days on every condition; terms apply. Cisco's original-owner Enhanced Limited Lifetime Warranty has eligibility and discontinuance limits; Cisco service ends April 30, 2027.
No, WS-C3850-24XS-E does not require a Cisco DNA subscription for base IP Services operation. Cisco DNA Essentials and Cisco DNA Advantage add-ons were offered from 3-year terms; SD-Access requires Advantage. Former Cisco DNA Premier bundles also started at 3 years and are discontinued. Expired add-ons can be deactivated before reloading into base operation.
WS-C3850-24XS-E accepts C3850-NM-4-10G for four 10G ports, C3850-NM-8-10G for eight 10G ports, or C3850-NM-2-40G for two 40G ports. The base order leaves the uplink bay empty. Include the selected module and compatible optics separately; adding uplinks does not change the number of fixed access ports.
WS-C3850-24XS-E supports nine-member StackWise-480 stacks with 480 Gbps stack bandwidth. Use STACK-T1-50CM=, STACK-T1-1M= or STACK-T1-3M= for interconnections. Members must use matching feature sets for IP Services stacking; verify software consistency and cable lengths when adding hardware to an existing stack rather than ordering by port count alone.
Yes, WS-C3850-24XS-E includes IP Services with full OSPF and BGPv4 support, alongside EIGRP and IS-ISv4. OSPFv3 and EIGRPv6 support IPv6 dynamic routing. The configuration also supports PIM multicast routing; its 24000-entry IPv4 scale includes ARP and learned routes rather than representing learned routes alone.
Yes, the Catalyst 3850 24-port SFP+ configuration supports optional redundant power supplies. PWR-C1-715WAC ships in the first bay; the second bay is empty unless another supply is ordered. The PWR-C1-715WAC capacity is not the chassis's electrical draw, so size input power for the switch and installed module configuration.
No, the Catalyst 3850 24-port SFP+ configuration does not supply endpoint PoE. Access connections use SFP+ cages rather than native powered RJ-45 ports, and an uplink module does not add endpoint powering. Cameras, phones and access points requiring power over copper need separate powered access switching.
WS-C3850-24XS-E includes IP Services, whereas WS-C3850-24XS-S includes IP Base; both models are discontinued. The distinction is the installed software feature set, not the fixed fiber port configuration. IP Services fits advanced-routing replacement requirements, while IP Base fits purchasers maintaining that lower feature tier in an existing installation.
WS-C3850-32XS-E includes C3850-NM-8-10G, adding eight 10G uplinks to the 24 fixed SFP+ ports, while WS-C3850-24XS-E leaves the module bay empty. Both are discontinued. The base configuration fits purchasers selecting uplinks separately; the 32-port bundle fits like-for-like replacement orders requiring that included network module configuration.
C9300X-24Y provides 24 native 25G fiber ports, while WS-C3850-24XS-E provides 24 fixed 1G/10G SFP+ ports. The older model is discontinued and C9300X-24Y is its current replacement. WS-C3850-24XS-E fits like-for-like replacement needs in installed 10G fiber networks; C9300X-24Y suits purchases moving to the current 25G generation.
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