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cisco Nexus 9000 Nexus 9332D-GX2B

CurrentNetwork1U fixed switch
Cisco cisco Nexus 9000 Nexus 9332D-GX2B1U fixed switch32 ports25.6 Tbps

The Cisco Nexus 9332D-GX2B is a compact 1U 400GbE datacenter spine and leaf switch powered by Cisco Cloud Scale GX2 silicon. Delivering 32 ports of 40G/100G/400G QSFP-DD with a total switching capacity of 25.6 Tbps, the 9332D-GX2B provides ultra-high radix interconnectivity, native RoCEv2 support, and line-rate MACsec encryption for AI/ML compute clusters and hyperscale cloud datacenters.

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Specifications

Brandcisco
FamilyNexus 9000
Form factor1U fixed switch
ReleasedJun 2022
Ports32x 400G QSFP-DD ports (backward compatible with 100G/200G)
Switching capacity25.6 Tbps bidirectional bandwidth
Forwarding throughputUp to 5.7 Bpps
Form factor1U rack mount
SecurityLine-rate MACsec-256 encryption standard across all ports
WorkloadsArtificial intelligence clusters, cloud spine layers, and 400G datacenter fabrics

Generations

Works together

How the cisco Nexus 9000 Nexus 9332D-GX2B connects to servers, storage and the network: 4 ways, with the parts and products on each path.

iSCSI and NVMe/TCP over EthernetFile storage (NFS and SMB)Hyperconverged clusterGPU cluster fabric

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Servers

Adapters for the server

Optics

iSCSI and NVMe/TCP over Ethernet: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Servers

Optics

File storage (NFS and SMB): how it fits together

Hyperconverged cluster

Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.

HCI nodes

Optics

Hyperconverged cluster: how it fits together

GPU cluster fabric

InfiniBand adapters and switches must match the generation: HDR is 200Gb, NDR is 400Gb. VPI adapters such as ConnectX-6 and ConnectX-7 can run either InfiniBand or Ethernet.

Servers

GPUs

Adapters for the server

GPU cluster fabric: how it fits together

Plan and size it

Check compatibility with Cisco

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Cisco has tested with the cisco Nexus 9000 Nexus 9332D-GX2B.

Equivalent models from other brands

FAQ

Can the 9332D-GX2B break out to 100G interfaces?

Yes, each 400G QSFP-DD port can be partitioned into 4x 100G QSFP28 connections, providing up to 128 ports of 100GbE in 1U.

Is this model optimized for GPU AI clusters?

Yes, its 25.6 Tbps non-blocking bandwidth and hardware RoCEv2 capabilities make it a preferred leaf/spine switch for AI training workloads.

Buying or selling Nexus 9332D-GX2B?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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Sources