Arista DCS-7280SR3AK-48YC8-FLX-R | 7280R3A 48-Port 50G Switch, 6x 200G, FLX, Rear-to-Front

SKU:DCS-7280SR3AK-48YC8-FLX-R

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Description

The Arista 7280R3A is a 1RU fixed data centre switch router built for spine, leaf and edge or peering roles. This variant pairs 48 SFP50 ports (10G/25G/50G) with 6x 200G QSFP uplinks, and adds TunnelSec line-rate encryption with large-route FlexRoute capability for networks that carry the full internet routing table.

For throughput it delivers 3.6 Tbps (7.2 Tbps FDX) and 1.35 Bpps forwarding, with latency from 3.8 us and a 4 GB deep packet buffer. The FLX licence tier is part of this SKU. It has dual hot-swap AC power supplies in 1+1 redundancy, three N+1 hot-swap fans and rear-to-front airflow for hot-aisle and cold-aisle layouts that need that orientation.

The switch runs Arista EOS (minimum 4.32.1) and works with CloudVision for management. SFP ports take SFP, SFP28 and SFP56 optics and DACs, while the uplinks take QSFP200 and QSFP100 modules, and QSFP+ at 40G.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- FlexRoute Engine with hardware support for the full internet routing table, scaling past 5 million routes
- Deep-buffer VOQ architecture that avoids head-of-line blocking and limits packet drops under congestion
- TunnelSec line-rate AES-256-GCM encryption, plus MACsec, IPsec and VXLANsec
- EVPN-VXLAN, EVPN-MPLS, MLAG, 512-way ECMP, VRF, BGP, OSPF and IS-IS routing
- MPLS with LDP, RSVP-TE and Segment Routing (ISIS-SR, SR-TE, TI-LFA)
- LANZ microburst analysis, DANZ, ZTP and CloudVision integration
- Programmability through eAPI, NETCONF, RESTCONF, gNMI, OpenConfig and Linux Bash
- Live software patching and Stateful Fault Repair for high availability

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Ports: 48 x SFP50 (10G/25G/50G)
- Uplinks: 4 x QSFP200 and 4 x QSFP100 physical ports, up to 6 x 200G
- Maximum 100G ports: 8
- Maximum 40G ports (using QSFP+): 8
- Throughput: 3.6 Tbps (7.2 Tbps FDX)
- Packet forwarding: 1.35 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 4 GB
- System memory: 64 GB
- CPU: eight-core x86
- SSD storage: 120 GB
- Encryption: TunnelSec on all ports
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management: 1 x 100/1000 port, 1 x RJ-45 RS-232 serial, 1 x USB
- Power supplies: 2 x hot-swap AC in 1+1 redundancy (PWR-1011-AC)
- Fans: 3 x hot-swap in N+1 redundancy (FAN-7011H)
- Airflow: rear to front
- Power draw: 290 W typical, 391 W maximum
- Form factor: 1RU, 43.99 x 4.37 x 50.31 cm including handles
- Weight: 11.23 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.32.1

FAQs

Q: What does the FLX suffix mean on this switch?
A: FLX denotes the FlexRoute software licence tier bundled with this SKU. It covers large-scale routing with EVPN, VXLAN, Segment Routing and advanced MPLS features. Other optional EOS licences are sold separately.

Q: What power supplies does this model use?
A: It uses two hot-swap 1000 W AC power supplies (PWR-1011-AC) in 1+1 redundancy, with a 100-240 VAC input. Typical draw is 290 W and maximum is 391 W, excluding transceivers.

Q: What airflow direction does this SKU have?
A: This SKU has rear-to-front airflow, indicated by the -R suffix. Fan modules and power supplies must match this direction.

Q: Which optics and cables work with the ports?
A: The 48 SFP ports accept SFP, SFP28 and SFP56 optics and DACs at 1G, 10G, 25G and 50G. The uplink ports accept QSFP200 and QSFP100 modules, and QSFP+ at 40G.

Q: How does this variant differ from other 7280R3A models?
A: This variant has TunnelSec encryption and large-route capacity, the FLX licence, rear-to-front airflow and dual AC power supplies. Sibling SKUs vary in these attributes.