Arista DCS-7280CR3A-72-FLX-F | 7280R3A 72-Port 100G QSFP Switch, FLX, Front-to-Rear

SKU:DCS-7280CR3A-72-FLX-F

Stock Status: Enquire

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Description

The Arista 7280R3A is a 2RU fixed data centre switch router built for spine-leaf fabrics, Internet border and peering roles, CDN backbones, data centre interconnect and MPLS or SR-TE cores. It runs Arista EOS and uses a deep-buffer virtual output queue architecture to avoid head-of-line blocking and keep packet drops to a minimum under congestion.

This SKU provides 72 QSFP100 ports for 100GbE, with 40G supported via QSFP+ and 50G, 25G or 10G via breakout, for 7.2 Tbps (14.4 Tbps FDX) of throughput and a 2.7 Bpps forwarding rate. It has an 8 GB packet buffer, latency from 3.8 us, an eight-core x86 CPU, 64 GB of system memory and a 120 GB SSD. Airflow is front-to-rear, with two hot-swap AC power supplies in a 1+1 arrangement and four N+1 hot-swap fans. Typical power draw is 406 W, maximum 754 W.

The FLX software licence suits large routing tables, MPLS and EVPN/VXLAN deployments. PTP and SyncE precision timing is supported with OCXO and PPS/10M/ToD inputs. The chassis requires EOS 4.31.2 or later and accepts 10G to 400G pluggable optics and cables.

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

Features

- Deep-buffer virtual output queue architecture that eliminates head-of-line blocking and virtually eliminates packet drops under congestion
- FlexRoute engine for Internet-scale routing in border, peering, CDN backbone and DCI roles
- Arista EOS with state-sharing architecture, eAPI, ZTP/ZTR, LANZ and AEM
- EVPN/VXLAN, segment routing and MPLS support, with the FLX licence covering large routing tables and advanced MPLS
- PTP and SyncE precision timing with OCXO and PPS/10M/ToD inputs
- Hot-swappable redundant AC power supplies and N+1 fans
- Accelerated sFlow telemetry
- Part of Arista's Cloud Grade Routing portfolio for 100G/400G MPLS and SR-TE cores, DCI, 5G and metro aggregation

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: 72 x QSFP100
- Maximum 100G ports: 72
- Maximum 40G ports (using QSFP+): 72
- Maximum 50G-2 ports: 102
- Maximum 25/10G ports: 102
- Maximum total interfaces: 116
- Throughput (FDX): 7.2 (14.4) Tbps
- Forwarding rate: 2.7 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 8 GB
- CPU: Eight-core x86
- System memory: 64 GB
- SSD storage: 120 GB
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management ports: 1 x 100/1000, 1 x RS-232 serial (RJ-45), 1 x USB
- Power supplies: 2 hot-swap AC (1+1 redundant)
- Fans: 4 hot-swap (N+1 redundant)
- Airflow direction: front to rear
- Typical/maximum power draw: 406 W / 754 W
- Rack units: 2 U
- Dimensions (W x H x D) including handles: 43.99 x 8.79 x 68.69 cm
- Weight: 22.41 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.31.2

FAQs

Q: Does this switch need a separate software licence?
A: This -FLX-F SKU is bundled with an FLX-tier licence for large-scale routing, MPLS and EVPN/VXLAN. EOS feature licences are perpetual and per-device.

Q: What airflow direction does this model have?
A: The -F suffix denotes front-to-rear airflow. Rear-to-front airflow is a separate -R SKU.

Q: Which power supplies and fan tray does it use?
A: It takes PWR-1513-AC, PWR-1512-AC or PWR-1511-DC power supplies and the FAN-7012H fan tray. This SKU is configured with two AC supplies in a 1+1 redundant arrangement.

Q: Can the QSFP100 ports run slower speeds?
A: Yes. The QSFP100 ports accept 40G QSFP+ modules and support breakout to 50G, 25G and 10G.

Q: What EOS version does it require?
A: The 7280R3A requires EOS 4.31.2 or later.