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arista 7280R 7280SE-64

End of saleNetwork1U fixed switch
Arista arista 7280R 7280SE-641U fixed switch48 ports1.28 Tbps

The Arista 7280SE-64 is a 1U datacenter leaf and edge router engineered with an ultra-deep packet buffer architecture. Providing 48 ports of 10GbE SFP+ and 4 ports of 40GbE QSFP+ backed by a massive 9GB packet buffer, the 7280SE-64 eliminates packet drops caused by speed mismatch, TCP incast, and high-concurrency storage traffic across datacenter interconnects.

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Specifications

Brandarista
Family7280R
Form factor1U fixed switch
ReleasedSep 2014
End of saleSep 2019
End of supportSep 2024
Ports48x 10GbE SFP+ and 4x 40GbE QSFP+ ports
Switching capacity1.28 Tbps / 960 Mpps
Packet buffer9 Gigabytes of deep dynamic packet buffering
Virtual output queueingVOQ architecture with credit-based scheduling to prevent head-of-line blocking
RolesDatacenter Interconnect (DCI), IP storage, Hadoop, and content distribution

Generations

Works together

How the arista 7280R 7280SE-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 7280R 7280SE-64.

Equivalent models from other brands

FAQ

Why is a 9GB buffer significant for storage networking?

It prevents TCP incast and congestion drops during large parallel reads/writes in distributed storage systems like Ceph, Hadoop, and Lustre.

What is Virtual Output Queueing (VOQ)?

VOQ buffers packets at the ingress port until the egress port confirms availability, eliminating head-of-line blocking across the switch fabric.

Buying or selling 7280SE-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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