The Huawei CloudEngine S5735‑L24T4S‑A1 (part number 98011306 / 98011306‑001(1) is a high‑performance, cost‑effective enterprise access switch that offers 24 Gigabit Ethernet RJ45 downlink ports and 4 Gigabit SFP uplink ports, powered by a built‑in AC supply. Designed for campus network access and gigabit desktop scenarios, it delivers up to 42 Mpps forwarding performance and a switching capacity of 56 Gbps in a compact 1U form factor. Supporting mature Huawei networking technologies such as intelligent stacking (iStack), Ethernet ring protection, robust Layer 2/3 features, comprehensive security controls, and telemetry-based O&M, the S5735‑L24T4S‑A1 is an ideal choice for reliable, scalable gigabit edge deployments where PoE is not required.

Key Technical Specifications

▪ Ports: 24 x 10/100/1000Base‑T ports, 4 x GE SFP ports
▪ Forwarding performance: 42 Mpps
▪ Switching capacity: 56 Gbps (device) / 336 Gbps (system)
▪ Memory: 512 MB RAM, 512 MB flash
▪ Power supply mode: Built‑in AC only, no pluggable module
▪ Input voltage range: AC 90‑264 V AC (47‑63 Hz); high‑voltage DC 88‑300 V DC
▪ Maximum input current: 2 A
▪ Heat dissipation: Built‑in fan with intelligent speed, air intake from left/front and exhaust to right
▪ Dimensions (no packaging): 43.6 × 442.0 × 220.0 mm (max depth 227.0 mm)
▪ Weight (no packaging): ~2.45 kg; with packaging ~3.34 kg
▪ Operating temperature: 0 °C to +45 °C (–5 °C to +45 °C if using long‑reach optical modules ≥70 km)
▪ Storage temp: –40 °C to +70 °C
▪ Relative humidity: 5% to 95% non‑condensing
▪ Operating altitude: 0–5000 m (0–16 404 ft)
▪ Surge protection: Service port ±7 kV common‑mode; power ±6 kV diff/common‑mode
▪ Ingress protection: IP20
▪ Console port: RJ45; no USB, no ETH management port, no RTC or RPS input
▪ PoE support: Not supported
▪ Certifications: EMC, safety, manufacturing compliance

Highlighted Features & Benefits

Flexible Ethernet Networking

The switch supports traditional MSTP/RSTP/STP, Huawei‑developed Smart Ethernet Protection (SEP), and ITU‑T G.8032 ERPS for ring protection switching within 50 ms. It supports Smart Link uplink backup and Ethernet OAM (IEEE 802.3ah/802.1ag) for rapid link fault detection.

Diversified Security Control

It supports 802.1X, MAC‑based, and hybrid port authentication, plus VLANIF‑based Portal authentication. Dynamic policy distribution (VLAN/QoS/ACL) on user login is supported. DoS‑attack defenses cover SYN flood, Smurf, Land, bogus DHCP, IP/MAC spoofing, DHCP flood, and ARP spoofing with strict ARP learning and DHCP snooping.

Easy Operation and Maintenance

Huawei Easy Operation offers zero‑touch deployment, USB‑based config delivery, batch provisioning or upgrades, and device replacement without reconfiguration. Remote management via SNMP v1/2/3, CLI, web GUI, or SSH v2.0 is available. Support for RMON, log hosts, port traffic statistics, and CampusInsight telemetry simplify optimization.

Intelligent Stacking (iStack)

Multiple S5735‑L units can be combined into a logical stack with redundancy and inter‑device link aggregation. Stacking scales port count, bandwidth, and processing capacity while simplifying configuration management.

Network Traffic Analysis

Supports sFlow for traffic sampling and real‑time delivery to collectors, enabling network usage analysis and monitoring.

Telemetry & Intelligent O&M

Built‑in telemetry sends device data to Huawei’s CampusInsight system for intelligent fault recognition and user‑experience assurance.

Hardware Design & Thermal Characteristics

The S5735‑L24T4S‑A1 includes a built‑in fan-based cooling system with intelligent speed control. Air is drawn in from the left and front panels and exhausted to the right. At normal temperature, noise stays within desktop‑class level, but startup fan speed may cause higher noise.

Typical Use Cases

Ideal for enterprise campus edge and gigabit desktop access scenarios. It provides reliable Layer‑2 and Layer‑3 services, secure port‑based authentication, and stable QoS. Suitable where PoE is not required. Its compact 1 U form‑factor and stacking support make it appropriate for scalable small to mid‑size networks.

Comparison with Other S5735‑L Variants

Compared to PoE‑enabled or 10 GE uplink variants (like L24P4S‑A1, L24T4X‑A1), this model is non‑PoE and offers Gigabit uplinks only. It balances affordability with performance—a solid choice where uplink speed suffices and PoE is not needed.

Deployment Considerations

Ensure ambient temperature stays above 0 °C for startup. Use within specified humidity and altitude range. Since PoE is not supported, external midspan injectors are required for powered devices. Stacking requires compatible electrical ports and proper cabling. Ensure proper surge protection when deployed in industrial environments.

Frequently Asked Questions

What is the switching capacity of the S5735‑L24T4S‑A1?

It provides 56 Gbps device capacity and 336 Gbps system capacity.

Does this model support PoE?

No, the S5735‑L24T4S‑A1 does not support PoE. For PoE needs, consider the L24P4S‑A1 variant.

Can the unit operate in cold environments?

Startup requires ambient temperature ≥ 0 °C. For optical modules ≥ 70 km, operating range extends down to –5 °C.

How is thermal management implemented?

It utilizes forced‑air cooling via built‑in fan. Air intake is left/front and exhaust to right, with intelligent fan-speed control.

What stacking features does it support?

Supports Huawei iStack over electrical ports, allowing multiple units to act as a logical switch with redundancy and simplified management.

What security mechanisms does it provide?

Includes 802.1X/MAC/hybrid authentication, DHCP snooping, strict ARP learning, DoS attack protections, and dynamic VLAN/QoS/ACL policy delivery.

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