Терез 88pl99ace1Huawei S5735-L24P4S-A1, also known as Huawei CloudEngine S5735-L24P4S-A1, is a high-performance PoE+ gigabit access switch in the S5700 series. Designed for enterprise campus access, it provides reliable power and data delivery to devices such as IP phones, APs, and cameras.

Key Technical Specifications

▪ Ports: 24 x 10/100/1000Base-T gigabit Ethernet PoE+ downlink ports, 4 x GE SFP uplink ports
▪ PoE Power Budget: Built‑in AC power module delivering 380 W PoE power
▪ Power Supply: AC, input range 100–240 V AC (max 90–290 V AC, 45–65 Hz(1)
▪ Dimensions: 43.6 mm (H) × 442 mm (W) × 220 mm (D); max depth 227 mm
▪ Weight: Approx. 3.9 kg (chassis 1 U)
▪ RAM: 1 GB
▪ Flash: 512 MB total
▪ MTBF: 92.2 years; Availability > 0.99999
▪ Protection: Port surge ±7 kV common mode; Power surge ±6 kV differential/common
▪ Cooling: Two built‑in fans, left/front intake, right exhaust
▪ Operating Temp: –40°C to +70°C storage; 0–5000 m altitude
▪ Console Port: RJ45
▪ Indicators: Status LEDs (no USB indicators)

Hardware Design and Build

The Huawei S5735-L24P4S-A1 is a rugged, 1U rackmount switch built to enterprise standards. Its chassis measures 43.6×442×220 mm, optimized for rack deployment. Internally, two efficient fans manage airflow from the front and left to exhaust heat through the right, ensuring stable performance even under full load.A built-in AC power supply supports a broad voltage range (100–240 V AC), with surge protection for both ports and power input. Designed for access environments, the S5735-L24P4S-A1 omits USB and external RPS ports, focusing on essential enterprise connectivity.

PoE+ Capabilities

As part of Huawei’s PoE+ lineup, the S5735-L24P4S-A1 offers a 380 W power budget from its built‑in AC supply, adhering to IEEE 802.3af/at standards. This allows all 24 downlink ports to power devices at 15.4 W (802.3af) or 12 ports at 30 W (802.3at) simultaneously.Notably, it supports perpetual PoE and fast PoE features, which maintain power to connected devices during reboot and shorten power-up time respectively, improving network robustness.

Performance and Switching Capacity

The S5735-L24P4S-A1 delivers impressive switching performance, supporting up to 42 Mpps packet forwarding and 56 Gbps switching capacity in line with CloudEngine S5735-L‑series standards. Ideal for aggregating gigabit desktop users, it also includes advanced VRP capabilities such as Layer 3 routing and policy-based security.

Software Platform and VRP Features

Powered by Huawei’s Versatile Routing Platform (VRP), the S5735-L24P4S-A1 supports a rich set of networking features, including:

Layer 2 and Layer 3 Protocols

Support for STP, RSTP, MSTP, ERPS (ITU‑T G.8032), Smart Link, IPv4/IPv6 static routing, and dynamic routing protocols.

Security and QoS

802.1X, MAC authentication, ACLs, DoS defense (SYN flood, ICMP flood), DHCP snooping, ARP inspection, smart QoS for traffic prioritization.

Access and Management

SSH v2.0, RMON, SNMP v1/v2/v3, CLI, web UI—all supported. USB-free design; zero-touch provisioning via USB in other S5735-L variants.

Stacking & iStack

Supports intelligent stacking (iStack) over Ethernet ports for unified management. Note: Mixed stacking between models A1 and non-A1/A/D is not supported.

Traffic Analysis & Telemetry

sFlow for traffic sampling, telemetry for device data collection, and integration with Huawei CampusInsight and eMDI for media service monitoring.

Reliability and Protection

The S5735-L24P4S-A1 is designed with enterprise-grade resilience:▪ MTBF of 92.2 years with availability > 99.999%
▪ Surge protection: ±7 kV at ports, ±6 kV at power inputs
▪ Operating environment: –40°C to +70°C storage, 0–5000 m altitude

Use Cases and Deployment Scenarios

The Huawei S5735-L24P4S-A1 is ideal for:▪ Campus network access layer—powering VoIP phones, Wi‑Fi APs, IP cameras
▪ Small-to‑medium office gigabit access
▪ Industrial campuses with harsh environments (high altitude, extreme temps)
▪ Situations requiring stable PoE uptime during maintenance

Comparison with Other Models

Compared to the non-A1 s5735-l24p4s switch, the A1 version features updated internal hardware, firmware improvements, and stricter stacking compatibility. While similar to the 10G uplink s5735-l24p4x-a1, the ‘s’ model focuses on GE uplinks and PoE+ efficiency.

Summary

The Huawei S5735-L24P4S-A1 is a robust, PoE+-capable gigabit access switch with enterprise-class hardware and comprehensive VRP software features. Its strong power delivery, high capacity, PoE resilience, traffic analysis, and security protocols make it ideal for modern network edge deployments.

Why Choose Huawei S5735-L24P4S-A1?

▪ Reliable PoE+ up to 380 W with perpetual and fast PoE support
▪ High switching capacity (56 Gbps, 42 Mpps)
▪ Rich VRP protocols with security, QoS, and telemetry
▪ Rugged design: wide temp range, altitude, surge protection
▪ iStack composite management and easy deployment

Часто задаваемые вопросы

What is the total PoE budget of Huawei S5735-L24P4S-A1?

It provides 380 W via its built‑in AC module, enough to power 24 ports at 15.4 W or 12 ports at 30 W concurrently.

Can the S5735-L24P4S-A1 stack with other S5735-L models?

Yes, it supports iStack, but only with the A1 variant; mixed stacking with older versions (A/D) is not supported.

Does it support 10 GbE uplink ports?

No. This model offers 4 x GE SFP uplinks. For 10 GbE uplinks, consider the s5735-l24p4x-a1.

What hardware protection features are included?

It includes ±7 kV port surge protection and ±6 kV power-line surge protection, with broad operating conditions.

Is USB used for configuration?

No. The S5735-L24P4S-A1 does not include USB ports and relies on CLI, SSH, and web UI.

What is the switching performance?

It supports up to 56 Gbps switching capacity and 42 Mpps packet forwarding rate.

Iii. Выводы и рекомендации

For organizations looking to deploy high-density, reliable gigabit access with PoE support, the Huawei S5735-L24P4S-A1 delivers on all fronts. Its advanced hardware, VRP features, and enterprise reliability position it as a smart choice for campus and edge network deployments.

Huawei CloudEngine S5735-L24P4S-A1 (98011321, 98011321-001) Switches

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