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Huawei’s CloudEngine S7700 Series offers modular, high-performance core switches tailored for campus and enterprise networks.
With chassis options like the S7703, S7706, and S7712, this series delivers flexible port expansion, PoE support, advanced virtualization, MACsec security, and intelligent operations — making it an ideal Modular Core Switch solution for modern infrastructures.
Model Specifications
| Model | MPU Slots | LPU Slots | Fan Slots | Power Slots (Sys/PoE) | Max Ports (10GE/40GE/100GE) | Capacity / Forwarding |
| S7703 / -PoE | 2 | 3 | 1 | 2 sys + 1 PoE (/PoE:3) | Up to 144×10GE, 36×40GE, 18×100GE | 1.92 Tbps / 1,440 Mpps |
| S7706 / -PoE | 2 | 6 | 2 | 4 sys + 4 PoE (/PoE:8) | Up to 288×10GE, 72×40GE, 36×100GE | 3.84 Tbps / 2,880 Mpps |
| S7712 / -PoE | 2 | 12 | 4 | 4 sys + 4 PoE | Up to 576×10GE, 144×40GE, 72×100GE | 4.64 Tbps / 3,480 Mpps |
- Power modules support both AC (800 W or 2200 W) and DC (1600 W or 2200 W) with redundancy options.
- Fan and power redundancy ensure high availability and efficient cooling.
Core Features & Differentiators
🛠 Modular Architecture & PoE Support
Hot-swappable MPUs, LPUs, and PoE modules enable chassis to be customized for enterprise or campus environments with flexible densities and power delivery.
🧠 Intelligent Switching with ENP Processing
S7700 supports MPLS VPN, HQoS, hardware-assisted traffic analysis, OAM (IEEE 802.1ag, Y.1731), and fast detection (BFD/HSR) — all driven by ENP subcards.
🔒 Security & MACsec Encryption
Hop-by-hop MACsec encryption, NGFW support, NAC (802.1x, Portal, MAC, DHCP), TPM-trusted boot, and DoS protections ensure enterprise-grade security.
🌐 VXLAN-Gateway & Virtual Fabrics
S7700 supports VXLAN with BGP-EVPN for Unified Virtual Fabrics and CSS/SVF for chassis clustering — allowing simplified network segmentation and scalable aggregation.
🎥 Multimedia Optimization
H-QoS, multicast priority queues, and advanced scheduling support high-performance voice, video conferencing, and surveillance applications.
❄️ Energy Efficiency & Airflow Control
Left-to-rear or bidirectional airflow, energy-efficient chips, PoE power optimization, and IEEE 802.3az guarantee sustainable operation.
Deployment Scenarios
A. Campus Core/Distribution
Use S7712 as the central campus core, aggregating multiple S7706 or S7703 devices. Provides high-density ports and PoE for wireless/VoIP, with VXLAN segmentation and MACsec security.
B. Machine Room Spine
Deploy S7706 as a spine switch with dense 10GE/40GE links, leveraging VXLAN, MACsec, and clustering for resilient spine architectures.
C. Branch Aggregation
Compact S7703 chassis serve smaller branch networks or edge data centers, providing flexible port modules and PoE options in limited rack spaces.
D. Wireless-Enabled Enterprise
S7700 acts as integrated AC controller managing thousands of APs directly, simplifying infrastructure deployment and centralizing WLAN management.
E. Secure Environments
Combined chassis with NGFW modules and MACsec suit finance and government sites that require deep packet inspection and trusted secure booting.
F. Media-Focused Deployments
With H-QoS and multicast capabilities, S7700 delivers exceptional performance for broadcasting, healthcare video systems, and real-time communications.
Deployment & Management Experience
- Zero-Touch Provisioning (ZTP) via USB or iMaster NCE speeds up rollout and ensures configuration consistency.
- Intelligent Analytics from ENP/NetStream/IFIT systems enable real-time operational insight and SLA tracking.
- Modular Resilience allows asset upgrades or repairs without service interruption—hot-swap capabilities reduce downtime.
- Unified Campus Infrastructure with integrated WLAN, VLAN, multicast, and virtualization simplifies management.
- Energy-Aware Deployment minimizes operational costs and supports green initiatives.
CLI Examples for S7700 Series
A. VLAN + OSPF Configuration (All S7700 Models)
[HUAWEI] system-view
[HUAWEI] vlan 100
[HUAWEI] interface Vlanif100
ip address 10.100.0.1 255.255.255.0
[HUAWEI] ospf 1
area 0.0.0.0
B. MACsec-Uplink (S7706/S7712)
[HUAWEI] interface FortyGigabitEthernet1/0/1
macsec enable
C. VXLAN Gateway (with ENP Cards)
[HUAWEI] system-view
[HUAWEI] vxlan enable
[HUAWEI] bgp 100
peer 10.10.10.2 as-number 100
ipv4-family evpn
D. CSS Cluster Setup
[HUAWEI] css enable
[HUAWEI] css cluster 1 peer 10.0.0.2
E. PoE Port Activation
[HUAWEI] interface GigabitEthernet1/0/1
poe enable
Conclusion
The Huawei CloudEngine S7700 Series is a top-tier Modular Core Switch platform—offering scalable throughput, PoE integration, secure VXLAN fabrics, MACsec, and wireless AC capabilities.
With intelligent chassis design, virtualization, and operational insight, it empowers modern enterprise and data center environments to scale securely and efficiently.
FAQs
-
Is S7700 modular and scalable?
Yes—supports slot-based MPUs, LPUs, PoE modules, and ENP cards. -
Does it support VXLAN-EVPN?
Yes, on models with ENP cards — enables virtual fabric gateways. -
Is MACsec available?
Yes—supported across PoE models with MACsec-capable PHY line cards. -
Can it act as wireless AC?
Yes—S7700 supports AP control for up to 4,000 APs and 32K users. -
Redundancy and fan support?
Dual MPUs, redundant power modules, PoE options, and smart airflow ensure reliability. -
Powerful enough for campus core?
Yes—up to 4.64 Tbps and 3,480 Mpps make it enterprise-grade. -
Does it support IPv6 and OAM?
Yes—IPv6 gold certified with IPv6 routing and hardware OAM (802.1ag, Y.1731). -
Is it energy-efficient?
Yes—energy-saving chips, PoE adjustment, and fan control reduce OPEX.
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