Huawei CloudEngine CE9855M‑32DQ Full English Product Description
Variants:‑B (port‑side intake airflow),‑F (port‑side exhaust airflow);‑M indicates enhanced large‑buffer model
Product Overview
Huawei CloudEngine CE9855M‑32DQ is a 1U high‑performance large‑buffer fixed‑port spine/aggregation switch of CloudEngine 9800 series, built for hyperscale AI data‑center fabrics, high‑performance computing and NVMe‑oF distributed storage environments. It delivers32×400GE QSFP‑DD high‑speed service ports plus 2×10GE SFP+ extension ports, supporting multi‑rate auto‑negotiation and flexible port breakout. Equipped with enhanced huge packet‑buffer hardware architecture, it provides 25.6 Tbps non‑blocking switching capacity and 8000 Mpps line‑rate L2/L3 forwarding performance. It supports iStack stacking, M‑LAG multi‑chassis link‑aggregation, hardware‑accelerated BGP‑EVPN VXLAN, RoCE‑v2 lossless Ethernet, AI‑ECN intelligent congestion tuning, MACsec encryption and comprehensive intelligent telemetry O&M capabilities. It is mainly deployed as high‑speed spine node in spine‑leaf architecture or high‑end aggregation switch for large‑scale DC networks.
Key Features
1. Hardware & Port Configuration
1U 19‑inch rack‑mount fixed chassis.
‑ 32 × 400GE QSFP‑DD service ports; auto‑adapt to 200GE/100GE; supports breakout to 2×200GE / 4×100GE / 8×50GE per port.
‑ 2 × 10GE SFP+ extension ports for out‑of‑band or low‑rate interconnection.
‑ Enhanced large shared packet buffer for absorbing bursty RDMA and AI compute traffic.
‑ 2 hot‑swappable power slots with 1+1 redundancy (AC /‑48V DC /240V HVDC /380V HVDC).
‑ 6 hot‑swap fan trays supporting N+1 redundancy; two airflow options:‑B for port‑side‑intake;‑F for port‑side‑exhaust.
‑ Maintenance interfaces: RJ45 Console, Mini‑USB Console, 1×GE out‑of‑band management port, USB storage port.
‑ Supports IEEE 1588v2 PTP high‑precision time synchronization for storage and AI clusters.
2. Layer‑2 Capabilities
Supports up to 4K IEEE 802.1Q VLANs, MUX VLAN, basic & flexible QinQ, VLAN mapping, GVRP.
Implements STP/RSTP/MSTP, Smart‑Link, ERPS for millisecond‑level link protection.
Supports static & dynamic LACP link aggregation, E‑Trunk, M‑LAG multi‑chassis link‑aggregation with hitless independent device upgrade, iStack stacking (max 16 units virtualized as one logical switch), SVF2.0 Super Virtual Fabric.
Supports IGMP Snooping, MLD Snooping, broadcast‑multicast‑unicast storm suppression, port isolation, LLDP,MACsec link‑level encryption.
Maximum MAC address table capacity: 264K entries.
3. Layer‑3, IPv6 & Data‑Center Functions
Full IPv4 / IPv6 dual‑stack support.
Supports static routing, RIP, OSPF, IS‑IS, BGP, OSPFv3, BGP4+, VRRP, ECMP (max 128‑way), hardware‑accelerated BFD, DPFR, MoFRR fast reroute.
Multicast suite: PIM‑DM, PIM‑SM, PIM‑SSM, MSDP.
Supports VXLAN bridging & VXLAN routing with BGP‑EVPN control plane, VXLAN OAM, policy‑based routing, URPF, ECN‑Overlay.
Lossless‑Ethernet enhancements: RoCE‑v2, PFC deadlock prevention, AI‑ECN intelligent congestion tuning.
Built‑in OPS open‑programmable system based on Python for custom automation scripts.
Supports ZTP zero‑touch provisioning for fast batch deployment.
4. Security Mechanisms
Supports 802.1X, MAC‑based authentication, Portal authentication, AAA / RADIUS / HWTACACS access control.
Provides DHCP Snooping, ARP anti‑spoofing, multi‑dimensional DoS attack defense, BPDU protection, root‑protection, MAC‑address‑learning‑limit.
L2‑L4 ACL implements fine‑grained traffic filtering based on MAC, IP, port and protocol fields, supports IPv4/IPv6 micro‑segmentation.
Supports SSHv2, HTTPS for encrypted management access; supports secure‑boot to prevent system‑image tampering.
5. QoS & Intelligent O&M
Multi‑queue QoS scheduling: SP, WRR, DRR.
Supports port‑based rate‑limiting, two‑rate three‑color CAR, 802.1p / DSCP marking & remarking, traffic shaping, WRED congestion‑avoidance.
Supports high‑precision real‑time Telemetry, NetStream, sFlow, IFIT, ERSPAN+, packet‑event loss/latency visibility, Ethernet OAM, SPAN/RSPAN/ERSPAN.
Compatible with eSight and iMaster NCE‑Fabric management platforms; supports NETCONF/YANG for SDN‑oriented automated deployment.
Technical Specifications
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Part Number: CE9855M‑32DQ (‑B /‑F airflow option)
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Form Factor: 1U, 19‑inch rack‑mount
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Service Ports: 32 × 400GE QSFP‑DD (breakout‑capable) + 2 ×10GE SFP+
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Management Ports: GE out‑of‑band‑management, RJ45 Console, Mini‑USB Console, USB
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Dimension (H×W×D): 43.6 mm ×442 mm ×600 mm
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Switching Capacity: 25.6 Tbps
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Forwarding Performance: 8000 Mpps line‑rate L2/L3 forwarding
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Packet Buffer: Enhanced large‑buffer architecture
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Power: Hot‑swappable AC /‑48V DC /240V HVDC /380V HVDC modules, supports 1+1 redundancy
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Fans: 6 hot‑swap fan trays with N+1 redundancy
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Operating environment:0 °C ~ +40 °C (0‑1800 m altitude); temperature derate 1°C per 220 m above 1800 m; 5%‑95% RH non‑condensing
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Note: Power and fan modules are sold separately. Actual port breakout and feature set depend on installed optical transceivers and software version.
Compatible Hardware
QSFP‑DD / QSFP56 / QSFP28 / SFP+ optical transceivers, high‑speed DAC/AOC cables; hot‑swap AC / DC / HVDC power modules, fan trays, stacking cables, rack‑mounting kits.
Note: CE9855M‑32DQ is fixed‑port chassis without service subcards. Feature availability depends on transceivers, power‑fan variant and software release.
Application Scenarios
Large‑buffer high‑density spine‑node deployment for hyperscale AI cloud‑data‑center spine‑leaf fabrics; high‑end aggregation switch for enterprise‑DC and large‑size higher‑education campus networks; AI‑computing & big‑data cluster networking; burst‑prone distributed NVMe‑oF storage environments with RoCE‑v2 lossless traffic; scenarios requiring iStack stacking, M‑LAG, BGP‑EVPN VXLAN and zero‑touch batch deployment.
Short Version (For Invoice / E‑commerce Listing)
Huawei CloudEngine CE9855M‑32DQ, 1U 19‑inch rack‑mount enhanced large‑buffer fixed data‑center spine/aggregation switch with 32×400GE QSFP‑DD breakout‑capable ports plus 2×10GE SFP+ extension ports, VRP8 operating system, supports iStack stacking, M‑LAG, SVF2.0 Super Virtual Fabric, VXLAN with BGP‑EVPN, RoCE‑v2 lossless Ethernet, AI‑ECN, MACsec, enhanced large packet buffer, full Layer‑2/Layer‑3 & IPv4/IPv6 dual‑stack, OPS open programmability, ZTP zero‑touch provisioning, high‑precision Telemetry & IFIT, hot‑swappable 1+1 redundant power & N+1 redundant fans, reversible airflow direction. Power and fan modules sold separately.
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