Huawei CloudEngine S16700-4 – Product Documentation & Specifications

Name: Huawei CloudEngine S16700-4 - SunSpike
SKU: S16700-4

Product Overview

The Huawei CloudEngine S16700-4 is a next-generation flagship modular core switch designed for high-end campus networks in the fully-wireless era. As the 4-slot model in the CloudEngine S16700 series, it delivers ultra-high-density 10GE/40GE/100GE/200GE/400GE full-rate access ports, enabling customers to rapidly build campus networks with a simplified architecture.

Built on a backplane-free orthogonal Clos architecture, the S16700-4 features a per-slot bandwidth of 14.4 Tbit/s — four times the industry average — providing ultra-fast forwarding capability and massive terminal access. All key components — including Main Processing Units (MPUs), Switch Fabric Units (SFUs), power modules, and fan modules — adopt redundant designs for carrier-grade reliability.

The S16700-4 is the first campus switch to apply Multichassis Link Aggregation Group (M-LAG) technology, achieving 99.9999% high reliability with uninterrupted service upgrades and fault isolation. Additional features include VXLAN L2 and L3 gateways, centralized and distributed gateway deployment, BGP-EVPN, NETCONF-based configuration, and iPCA for real-time packet loss and latency statistics at both network and device levels.

With its high-density line cards, robust reliability, programmable switching chips, and comprehensive security capabilities, the CloudEngine S16700-4 is an ideal core/aggregation switch for global customers to usher in the 400 Gbps era of campus networks, helping organizations accelerate their digital transformation.

Documentation List

Document Type	Description
Product Datasheet	CloudEngine S16700 Series Flagship Core Switches — overview, key features, specifications, and ordering information
Hardware Description	S16700-4 chassis specifications, appearance, component structure, slot layout, MPU/SFU/interface card technical indicators, and hardware installation guidelines
Configuration Guide – System Management	System management configuration for CloudEngine S16700 series (V600R023C00 and later)
Configuration Guide – High Availability	High availability configuration including M-LAG, VRRP, BFD, and redundancy features
Configuration Guide – Security	Security configuration including NAC, MACsec, and attack defense
Configuration Guide – IP Multicast	IP multicast configuration including MLD Snooping
Product Portfolio Guide	CloudEngine S Series Switches Product Portfolio — S16700-4 positioning, port density, and key specifications

Specifications

Chassis & Physical Specifications

Parameter	Specification
Product Model	CloudEngine S16700-4
Chassis Height	438 mm (17.24 in)
Chassis Width (body)	442 mm (17.40 in)
Chassis Depth (body)	874 mm (34.41 in)
Dimensions (W x D x H, with mounting ears and cable management)	483 mm × 985 mm × 438 mm (19.02 in × 38.78 in × 17.24 in)
Chassis Door Dimensions (W x D x H)	482.6 mm × 135 mm × 437.5 mm (19.00 in × 5.31 in × 17.22 in)
Weight without packaging (DC input, full configuration)	98.1 kg (216.27 lb)
Weight without packaging (AC input, full configuration)	162 kg (357.15 lb)

Slot & Module Specifications

Parameter	Specification
MPU Slots	2
Service Card (LPU) Slots	4
SFU Slots	9 (maximum varies with SFU type)
Fan Slots	3
LPU Slot Orientation	Horizontal
SFU Mode	4-SFU mode supported

Switching Capacity & Performance

Parameter	Specification
Switching Capacity	1085 / 3494 Tbps
Packet Forwarding Rate	259200 Mpps
Forwarding Performance	14400 Mpps
Per-Slot Bandwidth	14.4 Tbit/s

Port Density (Maximum)

Port Type	Maximum Supported
GE Ports	Up to 192
10GE Ports	Up to 192
40GE Ports	Up to 144
100GE Ports	Up to 144
400GE Ports	Up to 72

Power Specifications

Parameter	Specification
Maximum Power Consumption	4664W
Input Voltage (AC)	220V
Power Module Redundancy	Supported (hot standby)

Environmental & Acoustic Specifications

Parameter	Specification
Acoustic Noise (Normal Temperature, Sound Power)	49.3 dB(A)
Acoustic Noise (High Temperature, Sound Power)	—

Reliability Features

Feature	Support
M-LAG (Multichassis Link Aggregation)	Yes — first campus switch to apply M-LAG, 99.9999% reliability
MPU Redundancy	1:1 hot standby
SFU Redundancy	Hot standby
Power Module Redundancy	Hot standby
Fan Module Redundancy	Hot standby
VRRP and BFD for VRRP	Yes
BFD for BGP/IS-IS/OSPF/static routes	Yes
Eth-OAM 802.3ah and 802.1ag	Yes
Smart Link	Yes
LACP (Link Aggregation Control Protocol)	Yes

iPCA (Packet Conservation Algorithm for Internet)

Feature	Support
Real-time packet loss statistics	Collection of real-time statistics on the number of lost packets and packet loss ratio at network and device levels
Two/three-layer network and device-level statistics	Yes

VXLAN Features

Feature	Support
VXLAN L2 Gateway	Yes
VXLAN L3 Gateway	Yes
Centralized Gateway	Yes
Distributed Gateway	Yes
BGP-EVPN	Yes
NETCONF-based configuration	Yes

Interoperability Features

Feature	Description
VBST	VLAN-based Spanning Tree Protocol (compatible with PVST, PVST+, and RPVST)
LNP	Link Type Negotiation Protocol (similar to DTP)
VCMP	VLAN Central Management Protocol (similar to VTP)

Management Features

Feature	Support
SVF (Super Virtual Fabric)	Manages the entire network as one device
VXLAN-based virtual network (VN) automatic deployment	Yes
Fully programmable switching chips	Yes — supports user-defined forwarding processes and protocol development via open interfaces