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arista 7020R 7020TR-48

CurrentNetwork1U fixed switch
Arista arista 7020R 7020TR-481U fixed switch176 Gbps

The Arista 7020TR-48 is a 1U Gigabit Ethernet datacenter and campus access switch equipped with a deep 3GB packet buffer. Offering 48 ports of 100M/1000BASE-T and 4 ports of 10GbE SFP+, the 7020TR-48 prevents packet drops caused by microbursts and speed mismatch, delivering reliable connectivity for server management, IP storage, and video surveillance networks.

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Specifications

Brandarista
Family7020R
Form factor1U fixed switch
ReleasedJun 2017
Downlink ports48x 100M/1000BASE-T RJ-45 ports
Uplink ports4x 10GbE SFP+ optical ports
Packet buffer3GB deep packet buffer architecture
Switching capacity176 Gbps / 132 Mpps forwarding rate
SoftwareArista EOS with CloudVision telemetry and ZTP

Generations

Works together

How the arista 7020R 7020TR-48 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 7020R 7020TR-48.

Equivalent models from other brands

FAQ

Why does a 1GbE switch have a 3GB buffer?

The 3GB buffer absorbs severe speed mismatches when 10GbE traffic bursts into 1GbE attached servers, eliminating dropped frames.

Does the 7020TR-48 support PoE?

No, the 7020TR is a non-PoE datacenter/campus switch; PoE access requirements are fulfilled by the 720XP series.

Buying or selling 7020TR-48?

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