Arista DCS-7280QRA-C36SM-R | 7280RA 36-Port 40/100G QSFP Switch, Rear-to-Front, SSD

SKU:DCS-7280QRA-C36SM-R

Stock Status: Enquire

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Description

The Arista 7280RA is a 1RU fixed data centre switch router built for spine and leaf deployments, cloud networking and high-performance fabrics that need deep packet buffers and large forwarding tables. This SKU is the expanded memory variant with an SSD, rear-to-front airflow and two AC power supplies.

It provides 36 QSFP ports, made up of 24 x QSFP+ and 12 x QSFP100. Port options reach up to 12 x 100GbE, 36 x 40GbE, 48 x 25GbE or 120 x 10GbE, with 3.84 Tbps full-duplex throughput, 1.44 Bpps and latency from 3.8 us. An 8 GB packet buffer with Virtual Output Queues avoids head-of-line blocking, and AlgoMatch supports scalable ACL, route and flow-table lookups. It runs Arista EOS (minimum 4.19.0) in EOS Feature License Group 2, with a quad-core x86 CPU and 8 GB of system memory. Power comes from two 747W hot-swap AC supplies in a 1+1 configuration, with four N+1 hot-swap fans, and the unit draws 419 W typical and 570 W maximum.

The QSFP+ and QSFP100 ports accept 40G and 100G optics and cables, including SR4, LR4, CWDM4, AOC and CR4 types, plus 4x10G and 25G breakout cables. It can be managed through CloudVision.

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

Features

- Arista AlgoMatch for scalable ACL, route and flow-table lookups
- Deep packet buffer with Virtual Output Queues per port to prevent head-of-line blocking
- Wire-speed Layer 2 and Layer 3 forwarding
- 768K MAC addresses and 768K IPv4/IPv6 host routes
- Single-binary Arista EOS with CloudVision, VXLAN, LANZ microburst detection and Zero Touch Provisioning
- DANZ advanced mirroring and TAP aggregation
- Full Linux shell access with bash, python, C++, GO and OpenConfig support
- Redundant hot-swap power supplies and fans, with tool-less rails and NEBS design

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: 36 x QSFP (24 x QSFP+ and 12 x QSFP100)
- Maximum 100GbE ports: 12
- Maximum 40GbE ports: 36
- Maximum 25GbE ports: 48 (24 x 25GbE currently supported in EOS)
- Maximum 10GbE ports: 120
- Throughput (full duplex): 3.84 Tbps
- Packets per second: 1.44 Bpps
- Latency: from 3.8 us
- CPU: quad-core x86
- System memory: 8 GB (32 GB optional)
- Packet buffer memory: 8 GB
- Flash storage: 4 GB
- SSD storage: included in this SKU
- USB ports: 2
- Management port: 1 x 100/1000
- Serial port: 1 x RS-232 (RJ-45)
- Power supplies: 2 x 747W AC hot-swap (1+1 redundant)
- Fans: 4 hot-swap (N+1), fan tray FAN-7000H-F/R
- Airflow: rear-to-front
- Power draw: 419 W typical, 570 W maximum
- Rack units: 1U
- Dimensions (W x H x D): 48.3 x 4.4 x 52.3 cm
- Weight: 10.7 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.19.0 (EOS Feature License Group 2)

FAQs

Q: Which licences does this switch use?
A: It runs Arista EOS and belongs to EOS Feature License Group 2, with a minimum of EOS 4.19.0. Optional Group 2 licences include LIC-FIX-2-E for enhanced Layer 3, LIC-FIX-2-V for VMTracer and VXLAN, LIC-FIX-2-Z for monitoring and automation, and LIC-FIX-2-FLX-L for FLX-Lite routing and EVPN.

Q: What power supplies does this SKU use?
A: It uses two hot-swap 747W AC power supplies (PWR-747AC, 100-240V AC) in a 1+1 redundant configuration. Typical draw is 419 W and maximum is 570 W.

Q: Which optics and cables work with the QSFP ports?
A: The QSFP+ and QSFP100 ports support 40G and 100G optics and cables, including 40GBASE-SR4, LR4 and CR4, and 100GBASE-SR4, LR4, CWDM4, AOC and CR4. Breakout options include 4x10G QSFP+ to SFP+ and 25G QSFP to SFP25 cables.

Q: How does this variant differ from other 7280RA SKUs?
A: This SKU adds expanded system memory and an SSD, and uses rear-to-front airflow with two AC power supplies. These attributes separate it from other 7280RA configurations with different airflow or power options.

Q: How many ports can run at each speed?
A: The 36 QSFP ports can be configured as up to 12 x 100GbE, 36 x 40GbE, 48 x 25GbE or 120 x 10GbE using breakout cables.