CE9855-32DQ-B
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Huawei CE9855‑32DQ‑B Chassis Based Switch Overview
The Huawei CloudEngine 9855‑32DQ‑B is a high-density, fixed-architecture data center switch, designed for top-of-rack or aggregation roles in modern cloud environments. This specific model includes 32 × 400 GE QSFP‑DD ports, 2 × AC power modules, 6 × front-port intake fan trays, and is built for front-to-back airflow. It delivers ultra-high bandwidth and enterprise-grade features in a compact 1RU design.
Highlights
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32 × 400 GE QSFP‑DD Ports: Supports breaking out into 2×200 GE, 4×100 GE, or 8×50 GE configurations per port.
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Uplink Flexibility: Additional 2 × 10 GE SFP+ (can also be configured via breakout).
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Massive Capacity: Switching capacity reaches 25.6 Tbps, forwarding rate up to 4,800 Mpps.
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Advanced Data Center Features: Full support for VXLAN, BGP-EVPN, M-LAG, RDMA/RoCEv2, PFC, ECN, and AI-ECN for intelligent congestion avoidance.
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Smart Operations: Compatible with Zero Touch Provisioning, telemetry, iMaster NCE‑FabricInsight, and Packet-Event analytics.
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Hot-Swappable Design: Includes redundant power supplies (2 × 2000 W AC) and 6 intake fan trays for high availability and cooling.
Recommended Accessories
| Accessory | Category | Description |
|---|---|---|
| 400 GE QSFP‑DD Line Card Accessories | Interface Cards | Supports breakout to 200GE/100GE/50GE, for further port flexibility |
| 10 GE SFP+ Transceiver Module | SFP+ Module | Common uplink or stacking option |
| Spare Power Module (PAC2KS12‑PB) | Power Supply | 2000 W AC, front intake, supports hot-swap |
| Spare Fan Tray (FAN‑040A‑A) | Cooling | Front-port intake fan, hot-swappable |
Comparison with Similar Models
| Feature / Model | CE9855‑32DQ‑B | CE9855‑32DQ (base chassis) | CE9855‑32DQ‑DC (DC power version) |
|---|---|---|---|
| QSFP‑DD Ports | 32 × 400 GE | Same | Same |
| SFP+ Ports | 2 × 10 GE | Same | Same |
| Power Modules | 2 × AC 2000 W | – | 2 × DC equivalents |
| Fan Trays | 6 × intake | – | 6 × intake |
| Airflow | Front-port intake | Configurable, base unit | Configurable, base unit |
| Switching Capacity | 25.6 Tbps | Same | Same |
| Forwarding Performance | 4,800 Mpps | Same | Same |
| Ideal Use Case | High-density 400GE TOR deployments | Bare chassis for customization | DC-powered environments |
Specifications
| Parameter | Specification |
|---|---|
| Model | Huawei CloudEngine 9855‑32DQ‑B |
| Ports | 32 × 400 GE QSFP‑DD + 2 × 10 GE SFP+ |
| Switching Capacity | 25.6 Tbps |
| Forwarding Rate | 4,800 Mpps |
| Packet Buffer | 130 MB |
| CPU | 16 cores |
| Jumbo Frame Support | Yes (configurable) |
| Routing & Virtualization | IPv4/IPv6, VXLAN/BGP‑EVPN, M-LAG, STP/RSTP, OSPF, IS-IS, BGP |
| QoS & Congestion Mechanisms | PFC, WRED, tail drop, AI‑ECN, ECN Overlay, RDMA/RoCEv2 |
| O&M Features | ZTP, telemetry, Packet‑Event, iMaster NCE integration |
| Power Modules | 2 × 2000 W AC (PAC2KS12‑PB), 6 fans intake |
| Power Consumption (typ/max) | 528 W / 943 W (AC, full load) |
| Dimensions (H×W×D) | 43.6 × 600 × 442 mm |
| Weight | 12.78 kg |
| Operating Temperature | 0 °C to 40 °C (derated above 1,800 m) |
| Noise Level | 63.5 dBA typical @27 °C, up to 70.7 dBA max |
| Reliability | MTBF approx. 26 years (26.01) |
| Certifications | UL, CE, FCC, RoHS, IEC standards |
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