Arista DCS-7280CR3AM-72-FLX-R | 7280R3A 72-Port 100G QSFP Switch, MACsec, FLX, Rear-to-Front

SKU:DCS-7280CR3AM-72-FLX-R

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Description

The Arista 7280R3A is a 2RU fixed-configuration 100G data centre switch router built for spine and leaf fabrics, cloud and content-delivery networks, and service provider or routing roles that need deep buffers and high 100G density. This DCS-7280CR3AM-72 is the M model, adding line-rate MACsec and IPsec encryption, and runs Arista EOS.

It provides 72 x 100GbE QSFP ports with up to 14.4 Tbps of system capacity and forwarding of up to 5.4 Bpps, with latency from 3.8 us. A VOQ architecture and dynamic deep packet buffers help avoid head-of-line blocking. This variant carries the FLX software licence tier and has rear-to-front airflow, which separates it from front-to-rear (-F) siblings in the same family.

The chassis accepts PWR-1511-AC or PWR-1511-DC power supplies. It takes QSFP100 and QSFP28 transceivers as well as 40G QSFP+ optics, and is managed with Arista EOS and CloudVision.

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

Features

- Wire-speed unicast and multicast forwarding
- Line-rate MACsec and IPsec encryption on the M model
- VOQ architecture to eliminate head-of-line blocking
- Dynamic deep packet buffers
- Under 4 us latency (64 byte)
- Same Arista EOS software as all Arista products, simplifying network administration
- Supports AC and DC power supplies
- Managed with Arista EOS and CloudVision

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

- Model: 7280CR3AM-72
- Ports: 72 x 100GbE QSFP
- System capacity: up to 14.4 Tbps (28.8 Tbps full duplex)
- Packet rate: up to 5.4 Bpps
- Latency: from 3.8 us
- Encryption: line-rate MACsec / IPsec (M model)
- Software licence tier: FLX
- Airflow: rear-to-front (-R)
- Rack units: 2RU
- Dimensions (W x H x D): 48.3 x 8.8 x 68.7 cm (19 x 3.50 x 27.0 inches)
- Weight: 22.4 kg (49.4 lbs)
- Supported power supplies: PWR-1511-AC, PWR-1511-DC
- Operating system: Arista EOS

FAQs

Q: What does the FLX suffix mean?
A: FLX denotes the Arista FLX software licence tier (Flex Route), which sets the routing scale and feature level for this switch.

Q: Which power supplies does it use?
A: It supports the PWR-1511-AC and PWR-1511-DC power supplies, which are redundant and hot-swappable.

Q: Which optics does it take?
A: It accepts QSFP100 and QSFP28 transceivers as well as 40G QSFP+ optics. Check Arista's Transceiver Datasheet and EOS release notes for the full supported list.

Q: What does the -R in the SKU mean?
A: The -R suffix indicates rear-to-front airflow. Siblings ending in -F use front-to-rear airflow, so choose the one that matches your rack cooling layout.

Q: What does the M model add?
A: The M model adds line-rate MACsec and IPsec encryption on top of the 72 x 100GbE QSFP port configuration.