S5850 Series L3 Fully Managed Plus Switches Overview

Updated on Dec 15, 2021 by

FS enterprise switches

During the digital transformation stage of your enterprise, you will find that the existing network infrastructure cannot adapt to the new business needs, and you must consider upgrading the network performance. For the construction requirements of the three-layer network, how to choose the appropriate enterprise switches and achieve optimal network performance or management? The FS S5850 series combines excellent features here.

Get Your Smart Lossless Network with S5850 Series Switches

Classified as FS Enterprise Switches, the FS S5850 Series features 24/32/48 port densities to select, as well as advanced switching/routing protocol capabilities, enhanced application hosting, and more configuration automation performance to provide a smarter campus or data center network.

  • Excellent data center performance. S5850 series supports advanced functions such as MLAG, VXLAN-BGP-EVPN, PFC, and ECN to realize low-latency and lossless networks.

  • High-security performance. S5850 series supports various security functions, and real-time network monitoring, and ensures network security.

  • Comprehensive management functions. Users can manage the switch through the Console port, in-band/out-band network port, and USB port.

  • Key high availability features. Hardware and software components are monitored system-wide.

enterprise switch

S5850 Series Switches Features and Highlights

Versatile Connectivity

  • 24-port models are optional in 1G Ethernet copper and 10G/25G SFP+ connectivity. These enterprise switches can be deployed either as 1G/10G high-speed edge or aggregation switches requiring 25G or 40G uplink speed.

  • 32- and 48-port 10G models are with a variety of 40/100G uplinks, including 10GBASE-T and 10G SFP+ variants to conserve valuable rack space and simplify the migration to 40/100Gbps in the network core.

  • Large 10 Gigabit choice with SFP+ ports for fiber or short, low-latency copper DAC cables. 10GBASE-T ports for legacy Cat6 RJ45 short connections (up to 55m) and Cat6a/Cat7 connections up to 100m.

Intelligent Ethernet OAM

Ethernet OAM (operation, administration, and maintenance) facilitates operators to monitor and troubleshoot a single Ethernet link. With the IEEE802.1ag and ITU-T Y.1731 end-to-end OAM, the S5850 series enables service providers to monitor the services, survey the end-to-end performance and ensure the service quality matches the agreement. Besides, fault management techniques like CCM, LTM, and LBM are performed to measure latency and jitter. The IEEE 802.3ah EFM (Ethernet in the First Mile), known as the technology that specifies the protocols and Ethernet interfaces for using Ethernet over access links further enables remote management, network monitoring, network fault indication, remote loopback, and MIB parameter retrieval.

Enhanced QoS Control

FS S5850 series enterprise switches offer intelligent traffic management to keep the network running smoothly, delivering superior performance for data, voice, and video traffic. The outstanding QoS features include:

  • Up to 13 hardware queues per-port: 8 unicast queues, 4 multicast queues and 1 monitor queue. Ingress and egress policing are supported for intelligent bandwidth monitoring.

  • Efficiently prevent network congestion with multi-stage scheduling technology such as WDRR (Weighted Deficit Round Robin), SP (Strict Priority), TD (Tail Drop) and WRED (Weighted Random Early Detection).

  • QoS through Differentiated Services Code Point (DSCP) mapping and filtering.

  • QoS through traffic classification.

  • Flexible queue scheduling mechanism to shape queue and port traffic.

  • Support srTCM (Single Rate Three Color Marker) and trTCM (Two Rate Three Color Marker).

MPLS for Advanced Broadband Management

The S5850 series enterprise switches allow the purchase of licenses to support MPLS advanced performance, enabling higher reliability and predictability of traffic in the network.

  • MPLS supports sharing network resources, which can achieve some scalability and cost advantages.

  • It can manage and control QoS, allocate traffic reasonably, and ensure network reliability.

  • Allows you to automatically configure your network and set up tunneling or label-switched paths to optimize your network.

  • MPLS can work by applying labels to packets as they leave the customer network and enter the MPLS network.

Comprehensive Network Security

Multiple security features are also supported by the FS S5850 series enterprise switches to limit access to the network and decrease outside threats, including:

  • Centralized 802.1x authentication feature to the network access, including flexible authentication, 802.1X monitor mode, and RADIUS change of authorization.

  • Support subscriber-class/switch-class/network-class security control.

  • TACACS+ and RADIUS authentication to facilitate centralized control of the switch and restrict unauthorized users from altering the configuration.

  • Access Control Lists (ACLs) for IPv6 and IPv4 security can filter IPv4/IPv6/Non-IP packet respectively. The ACLs can apply to physical ports/VLAN/port group/VLAN group.

  • The members of port group or VLAN group share a set of ACLs and save TCAM resources.

  • ARP inspection and IP source guard features prevent network from malicious ARP attack.

S5850 Series Switches Overview

The FS S5850 series edge and aggregation models are a range of compact 1RU 1/10G wire speed, low latency and scalable switches. They also further support 25G/40G/100G uplinks for flexible linkage to other switches or devices over different media. The details of the S5850 enterprise switches are listed as following:

Model S5850-24T16B S5850-24S2Q S5850-32S2Q S5850-48S6Q S5850-48T4Q S5850-48S2Q4C
RJ45 Ports 24x 10/100/1000BASE-T RJ45 / / / 48x 10GBASE-T /
SFP+ Ports / 24x 10G SFP+ 32x 10G SFP+ 48x 10G SFP+ / 48x 10G SFP+
25G/40G/100G Ports 16x 25G SFP28 2x 40G QSFP+ 2x 40G QSFP+ 6x 40G QSFP+ 4x 40G QSFP+ 2x 40G QSFP+, 4x 100G QSFP28
Switching Capacity 848 Gbps 640 Gbps 800 Gbps 1.44 Tbps 1.28 Tbps 1.92 Tbps
Forwarding Rate 630.9 Mpps 480 Mpps 595.2 Mpps 1071.4 Mpps 952.3 Mpps 1071.4 Mpps
Max./Min. Latency 645ns/570ns 660ns 635ns/600ns 635ns/600ns 3.69us/2.60us 635ns/600ns
Typical/Max. Power Consumption 55W/70W 53W/59W 120W/150W 150W/190W 170W/210W 160W/200W
Fans Number 4 (3+1 Redundancy) 3 (2+1 Redundancy) 2 (1+1 Redundancy)
Hot-swappable Power Supplier 2 (1+1 Redundancy) 4 (3 +1 Redundancy)
Airflow Front-to-Back
Stacking or MLAG MLAG
VLAN, QoS, IGMP Snooping, Link Aggregation Support
Static Routing, RIP, OSPF, IPv6 support Support
Warranty 5 Years



Check out the reviews shared by our customers of FS S5850 series enterprise switches:


"FS Switches are better that even cisco,....we have supplied them somewhere they even use it in core productions network and its almost 3 years without any problem, with bought Datacenter switch 3 years ago and until today there is no complaint or requirement for support. For me, I am very very confident with FS Products, especially for those Datacenter switches. I can recommend 1000% to you."

— From Kenya


"The switch is also very power efficient and reasonably quiet compared with other switches I’ve used. So far I am impressed and think the switch offers much better value than the Cisco equivalents. I look forward to working more with it and getting the project to the end-user testing stage."

— From New Zealand

You might be interested in

See profile for Sheldon.
Decoding OLT, ONU, ONT, and ODN in PON Network
Mar 14, 2023
See profile for Irving.
What's the Difference? Hub vs Switch vs Router
Dec 17, 2021
See profile for Sheldon.
What Is SFP Port of Gigabit Switch?
Jan 6, 2023
See profile for Migelle.
PoE vs PoE+ vs PoE++ Switch: How to Choose?
May 30, 2024
See profile for Moris.
How Much Do You Know About Power Cord Types?
Sep 29, 2021