Arista DCS-7280DR3A-36-FLX-F | 7280R3A 36-Port 400G QSFP-DD Switch, FLX, 2x AC

SKU:DCS-7280DR3A-36-FLX-F

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Description

The Arista 7280R3A is a fixed 2RU data centre switch router built for cloud-grade routing, data centre interconnect and internet peering. This DCS-7280DR3A-36-FLX-F model suits data centre spine and leaf designs, internet border and peering roles, enterprise CDN backbones and carrier edge VPN and EVPN services.

It provides 36 x 400G QSFP-DD ports plus 2 x OSFP-LS ports for 400G-ZR, with 14.4 Tbps of throughput (28.8 Tbps full duplex), 5.4 Bpps forwarding and latency from 3.8 us. A 16 GB packet buffer absorbs bursts, and the ports break out to 100G, 50G, 25G and 10G. This SKU carries the FLX routing licence for large route tables, MPLS, EVPN and VXLAN, and uses two hot-swap AC power supplies in 1+1 redundancy with front-to-rear airflow.

It runs Arista EOS, managed by CloudVision, and supports PTP and SyncE precision timing. Replacement parts include PWR-2411 power supplies and FAN-7012H fan trays.

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

Features

- Arista EOS single binary image with full Linux shell access and extensible platform
- Virtual Output Queues per port to eliminate head-of-line blocking
- FlexRoute engine for internet-scale routing tables
- EVPN-VXLAN, MPLS (LDP, RSVP-TE, Segment Routing, TI-LFA) and L2/L3 VPN services
- PTP and Synchronous Ethernet precision timing
- LANZ microburst detection, DANZ and accelerated sFlow for visibility
- CloudVision integration, ZTP and open programmable APIs (JSON-RPC, NETCONF)
- 400G ZR and ZR+ support via dedicated OSFP-LS ports

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 400G QSFP-DD
- Additional ports: 2 x OSFP-LS for 400G-ZR
- Maximum 100G ports: 144
- Maximum 25/10G ports: 232
- Throughput: 14.4 Tbps (28.8 Tbps full duplex)
- Forwarding rate: 5.4 Bpps
- Latency: from 3.8 us
- Packet buffer: 16 GB
- CPU: Eight-core x86
- System memory: 64 GB
- SSD storage: 480 GB
- Management port: 1 x 100/1000
- Serial console: 1 x RJ-45 RS-232
- USB ports: 1
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Power supplies: 2 x hot-swap AC (PWR-2411), 1+1 redundant
- Fans: 4 x hot-swap FAN-7012H, N+1
- Airflow: front to rear
- Typical / maximum power draw: 643 W / 1283 W, excluding transceivers
- Rack units: 2RU
- Dimensions (W x H x D): 43.99 x 8.79 x 61.18 cm
- Weight: 24.09 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.30.0
- Licence: FLX (Group 5 fixed switch licensing)

FAQs

Q: Which licence does this SKU include?
A: The -FLX suffix indicates the FLX routing licence, covering large routing tables, MPLS, EVPN and VXLAN on Arista EOS.

Q: What power supplies does it use?
A: It uses two hot-swap AC supplies (PWR-2411) in 1+1 redundancy. Typical draw is 643 W and maximum is 1283 W, excluding transceivers.

Q: What airflow direction does this model have?
A: This -F model has front-to-rear airflow, using four hot-swap FAN-7012H fans in an N+1 arrangement.

Q: Can the 400G ports be broken out to lower speeds?
A: Yes. The QSFP-DD ports support breakout to 100G, 50G, 25G and 10G, and also support 40G and 100G QSFP transceivers.

Q: Does it support 400G-ZR optics?
A: Yes. Two dedicated OSFP-LS ports support 400G-ZR and ZR+.

Q: Which EOS version does it need?
A: The minimum supported release is EOS 4.30.0.