40G/100G Data Center Cloud Core Series Switches

High-capacity switching platform designed for large cloud and modern data centre networks. Features CLOS+ multi-grade architecture, independent control/detection/maintenance engines, and support for high-density 40G/100G interfaces.

Switching Capacity
Up to 1032 Tbps
Forwarding Rate
Up to 115,200 Mpps
Redundancy
1+1 / N+1 / N+M

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WD25000 Data Center Cloud Core Series
Complete technical specifications for all WD25000 models
High-Density 40GE/100GE Data Center Switch Series
Technical specifications for WD-DC-9600 and WD-DC-32QF models
EVPN-VXLAN
Technology
RoCE
Technology
VSS/MDC
Technology
100G/40G
Technology
Data Center Core • Cloud-Optimized • High Availability • Scalable Fabric

WD25000 Data Center Cloud Core Series

A high-performance, scalable core switching platform built for next-generation data center architectures. Supports EVPN-VXLAN fabrics, lossless RoCE, advanced virtualization, and carrier-grade high availability.

CLOS+ multi-grade architecture with independent engines
VSS and MDC virtualization for multi-tenant isolation
Full EVPN-VXLAN fabric automation and scaling
RoCE with PFC/ECN/DCBX/ETS for lossless Ethernet
Distributed buffering and precision QoS
DC-class HA with <50ms failover and NSR/GR

Key Applications

Cloud Data CentresScalable EVPN-VXLAN fabric for secure, automated virtualized networks
AI/HPC & StorageLossless RoCE, deep buffers for compute-intensive workloads
Spine / Super-SpineHigh-capacity, non-blocking core for large leaf-spine architectures
Service Provider CoreCarrier-grade routing, redundancy, and virtualization
Enterprise CoreMission-critical backbone with advanced security and automation
Multi-Tenant Data CentresSecure isolation and optimized resource utilization

Software Specification

Network Virtualization

  • BGP-EVPN
  • EVPN VxLAN
  • Manual configured VxLAN
  • VSS (Virtual Switching System)
  • VxLAN centralized/distributed gateway
  • VxLAN IPv4 tunnel
  • VxLAN L2/L3 gateway
  • IPv4 VxLAN tunnel

IP Services

  • DHCP Relay/Server
  • DHCP Snooping
  • L2PT
  • MPLS OAM
  • P/PE function
  • L3 MPLS VPN
  • MCE (Multi-VRF CE)
  • VPLS
  • LDP protocol

Layer 2 Technologies

  • Dynamic/static/blackhole MAC entries
  • Port-based VLANs
  • PVST/PVST+/RPVST+
  • STP/RSTP/MSTP
  • VLAN mapping
  • MVRP (Multiple VLAN Registration Protocol)
  • L2PT

Reliability

  • BFD for BGP, IS-IS, OSPF, static routes
  • Clos+ midplane-free design
  • DLDP
  • RRPP and ERPS
  • Ethernet OAM
  • Hot swapping for all components
  • IP-FRR and TE-FRR (<50 ms)
  • LACP with stack split detection

High Availability

  • 1+1 redundancy for MPUs and power
  • BFD with failover <50ms
  • CLOS+ midplane-free architecture
  • Hot patching support
  • Hot-swappable components
  • Independent switching fabric modules
  • NSR/GR for OSPF, BGP, IS-IS, RSVP
  • Real-time data backup on active/standby MPUs

IPv4/IPv6 Routing

  • BGP (Border Gateway Protocol)
  • OSPF v1/v2/v3
  • RIP v1/v2, RIPng
  • IS-IS, IS-ISv6
  • Static routing
  • VRRP
  • PBR (Policy-Based Routing)
  • Routing policy

Quality of Service (QoS)

  • Accounting by packet and byte
  • CAR (Committed access rate)
  • COPP (Control Plane Policing)
  • Flexible queue scheduling (SP, WFQ, WDRR)
  • WRED and tail drop
  • Packet filtering L2-L4
  • Traffic shaping
  • Priority remarking
Technical Specifications

Hardware Specification

Comprehensive technical specifications for the 40G/100G Data Center Cloud Core Series

Product Models Reference

WD25004X4 slotsWD25008X8 slotsWD25016X16 slotsWD-DC-96004 slotsWD-DC-32QF0 slots

Chassis Models

WD25004X
6U chassis4 LPU slots57.6 Tbps28,800 Mpps≤100 kg
WD25008X
12U chassis8 LPU slots115.2 Tbps57,600 Mpps≤190 kg
WD25016X
21U chassis16 LPU slots230.4 Tbps115,200 Mpps≤350 kg

Supervisor Engine (MPU)

Models
WDXM1SUP04B1/H1WDXM1SUP08B1/H1WDXM1SUP16B1/H1
SDRAM
16 GB or 32 GB
Flash
64 GB
Management Ports
2*10/100/1000 Base-T2*1G SFP
Console Port
1*RJ45
USB Port
1*USB

Switching Fabric

Slots
6 fabric module slots
Redundancy
N+1 redundancy
Classes
Class C, D, EC+: Enhanced throughputE: Highest performance
Capacity
Up to 9.6 Tbps per slotScalable bandwidth expansion

Line Cards (LPU)

Port Types
10G SFP+40G QSFP+100G QSFP28
High-Density Cards
48*10G48*40G48*100G
Mixed Cards
24*10G + 4*40G6*100G + 12*40G48*10G + 2*100G
Buffer per Card
Up to 24 GB4 GB per forwarding chip
Hardware Queues
Up to 96K queues per line card

Power & Cooling

Power Modules
2400W AC/DC3000W AC3000W AC+HVDC
Redundancy
N+M redundancy
Fan Modules
Standard coolingHigh-speed fan options
Airflow
Front-to-back design
Efficiency
Smart power managementSequential power on/off

Physical & Environmental

Dimensions (WxDxH)
264-931*440*857 mm6U-21U
Operating Temp
-5°C to 55°C
Storage Temp
-40°C to 85°C
Humidity
5% to 95% non-condensing
MTBF
High reliability design
EMC/Safety
FCC, CE, RoHSCISPR 22/24/32

Data Center Advantages

CLOS+ Architecture

Midplane-free design

EVPN-VXLAN

Cloud-scale fabric

RoCE Lossless

AI/HPC optimized

DC-Class HA

50ms failover

Ordering Information

ModelDescriptionUse CaseSwitching Capacity
WD25004XCompact 6U modular switch with 4 LPU slots, ideal for leaf, aggregation, and secure edge spineLeaf, RR, Aggregation, Secure Edge Spine, Border Leaf, PE Router57.6 Tbps
WD25008XMid-size 12U modular chassis with 8 LPU slots, designed for spine/super-spine deploymentsSpine/Super-Spine, AI/HPC, Storage Core, ISP Core115.2 Tbps
WD25016XHigh-capacity 21U data center core chassis with 16 LPU slots for maximum scalabilityLarge-scale core, high-density deployments, mega data centers230.4 Tbps

Industry Standards Compliance

IEEE Standards

  • IEEE 802.1s: MSTP
  • IEEE 802.1qaz: Data Center Bridging (DCB)
  • IEEE 802.1d: Spanning Tree Protocol
  • IEEE 802.1p: Traffic Class & QoS
  • IEEE 802.1q: VLAN Tagging
  • IEEE 802.1QBB: Priority Flow Control (PFC)
  • IEEE 802.1w: RSTP
  • IEEE 802.1ag: Connectivity Fault Management

IETF RFCs

  • RFC 1771: BGP-4
  • RFC 2328: OSPFv2
  • RFC 793: TCP Standard
  • RFC 1191: Path MTU Discovery
  • RFC 1305: NTPv3
  • RFC 1321: MD5 Message Digest
  • RFC 2328: OSPFv2
  • RFC 4271: BGP-4

EMC & Safety Standards

  • CISPR 22 Class A - EMC Emissions
  • CISPR 24 - EMC Immunity
  • CISPR 32 Class A - EMC Emission
  • EN 55022 Class A - IT Equipment Emission
  • EN 55032 Class A - Multimedia Emissions
  • FCC Part 15 Class A - Electromagnetic Emissions
  • ICES-003 Class A - Canada EMC
  • ROHS Compliance

Data Center Features

  • EVPN-VXLAN (RFC 8365, RFC 7348)
  • MP-BGP (RFC 4760, RFC 7432)
  • RDMA over Converged Ethernet (RoCE)
  • Priority-based Flow Control (PFC)
  • Enhanced Transmission Selection (ETS)
  • Data Center Bridging Capability Exchange (DCBX)
  • Explicit Congestion Notification (ECN)

Ideal for Modern Cloud Data Center Architectures

Designed for next-generation data centers, cloud infrastructures, AI/HPC workloads, and scalable spine/leaf deployments.

Cloud & Multi-Tenant DCs

Scalable EVPN-VXLAN fabric for secure, automated virtualized networks.

AI/HPC & Storage Clusters

Lossless RoCE, deep buffers, and low latency for compute-intensive workloads.

Spine / Super-Spine

High-capacity, non-blocking core for large leaf-spine architectures.

Service Provider Core

Carrier-grade routing, redundancy, and virtualization for mission-critical backbones.

Enterprise Core

Advanced security, automation, and high availability for enterprise data centers.

Data Center Interconnect

Multi-pod, multi-site, and multi-cloud extension with consistent policies.