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arista 7280R 7280SR3-48YC8

CurrentNetwork1U fixed switch
Arista arista 7280R 7280SR3-48YC81U fixed switch48 ports4.0 Tbps

The Arista 7280SR3-48YC8 is a 1U deep-buffer leaf and edge router powered by Broadcom Jericho 2 silicon. Delivering 48 ports of 10G/25G SFP28 and 8 ports of 40G/100G QSFP28 backed by a massive 8GB packet buffer, the 7280SR3 provides wire-speed MACsec-256 encryption, high-density 25G server connectivity, and full internet BGP routing tables for modern cloud fabrics.

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Specifications

Brandarista
Family7280R
Form factor1U fixed switch
ReleasedOct 2019
Ports48x 10G/25G SFP28 and 8x 40G/100G QSFP28 ports
Switching capacity4.0 Tbps / 2.0 Bpps
Packet buffer8GB integrated high-bandwidth packet buffer
SecurityLine-rate MACsec-256 on all downlink and uplink ports
SoftwareArista EOS with EVPN-VXLAN and CloudVision integration

Generations

Works together

How the arista 7280R 7280SR3-48YC8 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 7280SR3-48YC8.

Equivalent models from other brands

FAQ

What is the primary benefit of the Jericho 2 architecture on the 7280SR3?

Jericho 2 integrates high-bandwidth memory (HBM) packet buffers directly onto the ASIC package, doubling throughput while lowering latency and power consumption.

Does the 7280SR3 support MACsec encryption?

Yes, wire-speed IEEE 802.1AE MACsec-256 is supported across all 48 25G ports and 8 100G ports.

Buying or selling 7280SR3-48YC8?

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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