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arista 7260X 7260CX3-64

CurrentNetwork2U fixed switch
Arista arista 7260X 7260CX3-642U fixed switch64 ports12.8 Tbps

The Arista 7260CX3-64 is a high-density 2U fixed datacenter spine switch offering 64 ports of wire-speed 40G/100G QSFP28. Powered by the Broadcom Tomahawk 3 engine, the 7260CX3 delivers 12.8 Tbps of non-blocking bandwidth, ultra-low latency, and massive radix connectivity for scale-out cloud datacenter fabrics and high-performance computing backbones.

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Specifications

Brandarista
Family7260X
Form factor2U fixed switch
ReleasedMay 2018
Ports64x 40G/100G QSFP28 ports
Switching capacity12.8 Tbps / 4.3 Bpps forwarding rate
Form factor2U rack mount
LatencyCut-through latency under 900 nanoseconds
Power suppliesUp to four hot-swappable 1+1 redundant power supplies

Generations

Works together

How the arista 7260X 7260CX3-64 connects to servers, storage and the network: 3 ways, with the parts and products on each path.

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

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

Storage

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

Adapters for the server

Storage

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

Adapters for the server

Optics

Hyperconverged cluster: how it fits together

Plan and size it

Check compatibility with Arista

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Arista has tested with the arista 7260X 7260CX3-64.

Equivalent models from other brands

FAQ

What makes the 7260CX3 ideal for datacenter spines?

64 wire-speed 100G ports in a 2U fixed form factor allow building non-blocking two-tier fabrics connecting thousands of 25G/100G server ports.

Does the 7260CX3 support breakout cabling?

Yes, each port can break out to 2x 50G or 4x 25G interfaces, yielding up to 256 ports of 25GbE.

Buying or selling 7260CX3-64?

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