Product Overview
The CloudEngine XH16800 series is an AI-native modular core switch featuring up to 768×400GE ports, ~3.5μs latency, iLossless algorithm, NSLB load balancing, and iFlashboot reliability – purpose-built for hyperscale AI clusters and cloud data centers.
Key Differentiators
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AI-Native Architecture – iLossless algorithm for zero packet loss and μs‑level latency; maximizes GPU utilization.
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Ultra-High Density – Up to 768×400GE ports (XH16800-16) with smooth evolution to 800GE.
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NSLB (Network Scale Load Balancing) – Fully harnesses AI cluster computing power under heavy load.
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Ultra-Low Latency – ~3.5 μs forwarding latency; backplane‑free Clos orthogonal architecture.
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High Availability – iFlashboot (device restart protection), optical module channel loss resistance, M‑LAG independent upgrade.
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Industry-Leading Density – Highest 400GE port density per cabinet in the industry.
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Virtualization & Programmability – VXLAN routing/bridging, BGP EVPN; NETCONF, Ansible, REST API.
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Advanced Telemetry – iFIT, Packet Event, Telemetry for real‑time network visibility.
Technical Specifications
| Parameter | XH16800-8 | XH16800-16 |
|---|---|---|
| Switching Capacity | 1,906 / 5,718 Tbps | 3,813 / 11,439 Tbps |
| Forwarding Rate | 460,800 Mpps | 921,600 Mpps |
| Service Slots | 8 | 16 |
| Switching Fabric Slots | 9 | 9 |
| Max 400GE Ports | 384 | 768 |
| Fabric Architecture | Clos, cell switching, VoQ | Clos, cell switching, VoQ |
| Airflow | Front‑to‑back | Front‑to‑back |
| Latency | ~3.5 μs | ~3.5 μs |
| Operating Temp | 0°C to 40°C | 0°C to 40°C |
| Power Supply | 3000W AC/HVDC (N+1) | 3000W AC/HVDC (N+1) |
Software & Protocol Support
| Category | Features |
|---|---|
| Layer 2 | VLAN, STP, LACP, QinQ, MACsec |
| Layer 3 | Static, OSPF, IS-IS, BGP, IPv4/IPv6 |
| Data Center | VXLAN, BGP EVPN, M-LAG |
| Intelligent Lossless | PFC, AI ECN, AI ZTP, NSLB, iLossless |
| High Availability | Hardware BFD, VRRP, M-LAG, DPFR, MoFRR, DPCF, iFlashboot |
| Security | Micro‑segmentation, MACsec, anti‑DoS |
| OAM & Telemetry | Telemetry, NetStream, sFlow, ERSPAN+, iFIT, Packet Event |
| Programmability | NETCONF, Ansible, open‑source modules |
| Synchronization | 1588v2 (PTP) |
Line Card Options
| Card Type | Description |
|---|---|
| 36×400GE QSFP-DD + 2×100GE QSFP28 | High‑density 400GE interface card |
| 40×400GE QSFP-DD | Ultra‑high‑density 400GE interface card |
| 48×100GE QSFP28 | High‑density 100GE interface card |
