Arista DCS-7280DR3AM-36-DC-F | 7280R3A 36-Port 400G QSFP-DD Switch, MACsec, DC PSU

SKU:DCS-7280DR3AM-36-DC-F

Stock Status: Enquire

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Description

The Arista 7280R3A is a 2RU fixed-configuration data centre and routing switch with 36 x 400G QSFP-DD ports. The 7280DR3AM-36 variant adds line-rate MACsec encryption on all ports, making it well suited to high-density 400G spine and leaf fabrics, secure internet peering, carrier edge VPN services, EVPN for 5G/MEC, metro and carrier core transport, and encrypted links between sites.

This SKU delivers 14.4 Tbps (28.8 Tbps FDX) of throughput and 5.4 Bpps, with latency from 3.8 us, 16 GB of packet buffer and 64 GB of system memory. It is fitted with two hot-swap PWR-2411 DC power supplies in a 1+1 redundant arrangement, each rated at 2400 W output from a -48 to -60 VDC input, plus four hot-swap fans in an N+1 arrangement with front-to-rear airflow. Typical power draw is 643 W, with a maximum of 1283 W excluding transceivers.

The ports accept QSFP-DD, OSFP-LS, QSFP100 and QSFP+ optics with break-out to 4 x 100G, 50G and 25/10G, and two OSFP-LS ports support 400G-ZR and ZR+ DWDM modules. The switch requires EOS 4.30.0 or later and sits in EOS Feature Licence Group 5, so advanced features need the appropriate EOS licence.

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

Features

- Line-rate MACsec, IPsec and VXLANsec encryption (AES-256-GCM) on all ports
- QSFP, OSFP and QSFP-DD support for 10G to 400G
- 400G ZR and ZR+ support with dedicated OSFP-Line System ports
- Synchronous Ethernet and IEEE 1588 PTP precision timing
- Virtual Output Queues (VOQs) to eliminate head-of-line blocking
- Redundant hot-swap DC power supplies and fans, with over 94% power supply efficiency
- Designed for NEBS environments
- CloudVision, EVPN-VXLAN, LANZ microburst detection, ZTP and Accelerated sFlow
- Carrier-grade routing including LDP, RSVP-TE, SR-TE, FRR and TI-LFA

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 400GbE QSFP-DD
- OSFP-LS ports: 2 (400G-ZR/ZR+)
- Max 100G ports: 144
- Max 50G ports: 232
- Max 40G ports (using QSFP+): 36
- Max 25/10G ports: 232
- Throughput (FDX): 14.4 (28.8) Tbps
- Packets per second: 5.4 Bpps
- Latency: From 3.8 us
- Encryption: MACsec on all ports
- CPU: Eight-core x86
- System memory: 64 GB
- Packet buffer memory: 16 GB
- SSD storage: 480 GB
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management: 1 x 100/1000 port, 1 x RS-232 serial (RJ-45), 1 x USB
- Power supplies: 2 x PWR-2411 DC, hot-swap, 1+1 redundant
- PWR-2411 DC input voltage: -48 to -60 VDC
- PWR-2411 DC output power: 2400 W
- Typical/max power draw: 643 W / 1283 W
- Fans: 4 x hot-swap FAN-7012H, N+1 redundant
- Airflow direction: Front to rear
- Form factor: 2RU
- Size (W x H x D) inc. handles: 43.99 x 8.79 x 61.18 cm
- Weight: 24.09 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.30.0

FAQs

Q: Does this switch need an EOS licence?
A: Arista EOS feature licences are required for advanced features. The 7280R3A is in EOS Feature Licence Group 5, with options such as LIC-FIX-5-E for Enhanced L3. Encryption services are an EOS licensed feature that requires a licence file.

Q: What power does this DC model need?
A: It uses two PWR-2411 DC power supplies in a 1+1 redundant arrangement. Each accepts -48 to -60 VDC at up to 55 A and delivers 2400 W output. The switch draws 643 W typical and 1283 W maximum, excluding transceivers.

Q: Which optics and speeds does it support?
A: It supports QSFP-DD, OSFP-LS, QSFP100 and QSFP+ optics, with break-out to 4 x 100G, 50G and 25/10G. The two OSFP-LS ports support 400G-ZR and ZR+ DWDM modules.

Q: Which EOS version does it require?
A: The 7280R3A requires EOS 4.30.0 or later.

Q: How does this SKU differ from other 7280R3A models?
A: This SKU has MACsec encryption on all ports, two DC power supplies and front-to-rear airflow, in a 36 x 400G QSFP-DD configuration. The 7280DR3AM-36 'M' variant is the one with line-rate encryption on every port.