Cisco Nexus 9332D-H2R Switch
The first Cisco Nexus 9000 switch with deep buffer capability — engineered to handle the bursty, high-volume traffic patterns of AI/ML training workloads and IP media streaming without packet loss.
Product Overview
Deep Packet Buffer
Deep on-chip buffer memory absorbs large traffic bursts from GPU collective operations — preventing the packet drops that reduce AI training efficiency.
32x 400G Ports
32 line-rate 400G QSFP-DD ports with breakout options for flexible connectivity to compute nodes, storage, and spine switches.
IP Media Ready
Deep buffer architecture handles IP media flows — video transport, streaming, and broadcasting workflows that require bursty capacity.
Intelligent Buffer Management
Cisco's intelligent buffer management distinguishes between mice and elephant flows, applying different queue management for each.
Line-Rate MACsec
Hardware MACsec encryption on all ports protects AI training data and media content at line rate with zero performance impact.
Buffer Telemetry
Per-port and per-queue buffer utilization telemetry lets operations teams identify and resolve congestion before it impacts workloads.
Features and Benefits
The first Nexus 9000 built for bursty workloads.
The Nexus 9332D-H2R introduces deep buffer capability to the Nexus 9000 portfolio — solving the congestion problems that affect both AI/ML training collectives and IP media workflows.
AllReduce Operations
Deep buffer absorbs the synchronized traffic bursts from GPU AllReduce operations — maintaining throughput and preventing training slowdowns.
Lossless Fabric
Combined with PFC and ECN, the deep buffer architecture delivers lossless RoCE/RDMA transport for the most demanding AI workloads.
Media Streaming
Handle high-bitrate IP video transport flows with large buffer capacity that absorbs jitter without impacting downstream playback quality.
VXLAN BGP EVPN
Standards-based overlay with comprehensive routing support for seamless integration into multi-tier data center fabrics.
Full Programmability
NETCONF/YANG, gNMI, and RESTCONF APIs plus Ansible and Terraform integrations for automated deployment and operations.
High Availability
ISSU, vPC, hot-swap PSUs and fans with N+1 redundancy maintain continuous operation during upgrades and maintenance.
Specifications
Performance
Ports & Interfaces
Buffer Architecture
Physical
Documentation
400G & 800G Portfolio
Explore the full portfolio of Cisco Nexus 400G and 800G switches including the 9332D-H2R.
View Portfolio ›NX-OS Brochure
Open, Secure, and Extensible — the operating system powering all Cisco Nexus 9000 switches.
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