Arista DCS-7280CR3AK-48D6-FLX-F | 7280R3A 48-Port 100G Switch, 6x 400G, FLX, 2x AC

SKU:DCS-7280CR3AK-48D6-FLX-F

Stock Status: Enquire

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Description

The Arista 7280R3A is a 2RU fixed data centre and service provider switch router for spine, leaf, peering and carrier edge roles. The 7280CR3AK-48D6 is the Large Scale (R3AK) model, built for deep buffers, large routing tables and TunnelSec encryption on all ports.

It provides 48 x QSFP100 ports and 6 x QSFP-DD 400G ports, with 7.2 Tbps of throughput (14.4 Tbps full duplex), a 2.7 Bpps forwarding rate and an 8 GB packet buffer. Latency starts from 3.8 us. This SKU ships with front-to-rear airflow, 2 x hot-swap AC power supplies in 1+1 redundancy and the FLX software licence. The R3AK design supports 5M+ IPv4 routes, up to 384K MAC addresses and algorithmic ACLs for 400K+ rules.

The 100G ports accept QSFP100 optics and cables, and the 400G ports accept QSFP-DD optics and cables, with breakout support down to 200G, 100G, 50G, 40G and 25/10G. A dedicated OSFP-LS port supports 400G ZR/ZR+ coherent optics. The switch runs Arista EOS 4.31.1 or later and is managed with CloudVision.

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

Features

- Wire-speed 100G and 400G in a 2RU fixed form factor
- Large Scale R3AK model with 5M+ IPv4 routes, up to 384K MAC addresses and algorithmic ACLs for 400K+ rules
- TunnelSec line-rate AES-256 encryption from 10G to 400G, plus MACsec and IPsec support
- Deep packet buffers with Virtual Output Queues per port to avoid head-of-line blocking
- Dedicated OSFP-LS port for 400G ZR/ZR+ coherent optics
- PTP and SyncE precision timing
- EVPN-VXLAN, MPLS, segment routing and carrier-grade routing
- LANZ microburst detection, ZTP, Inband Network Telemetry and CloudVision support
- Hot-swap redundant power supplies and fans, with over 94% efficient PSUs
- Arista EOS with JSON-RPC and NETCONF APIs and full Linux shell access

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: 7280CR3AK-48D6 (R3AK, large routes)
- Ports: 48 x QSFP100, 6 x QSFP-DD
- Maximum 400G ports: 6
- Maximum 100G ports: 68
- Maximum 50G ports: 114
- Maximum 40G ports (using QSFP+): 54
- Maximum 25/10G ports: 114
- Maximum total interfaces: 116
- Encryption: TunnelSec on all ports (R3AK)
- Throughput: 7.2 Tbps (14.4 Tbps full duplex)
- Forwarding rate: 2.7 Bpps
- Latency: from 3.8 us
- CPU: eight-core x86
- System memory: 64 GB
- Packet buffer: 8 GB
- SSD storage: 120 GB
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- OSFP-LS ports: 1
- Management port: 1 x 100/1000
- Serial port: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2 x hot-swap AC (1+1), PWR-1512-AC
- Fans: 4 x hot-swap (N+1), FAN-7012H
- Airflow: front to rear
- Rack units: 2U
- Dimensions (W x H x D): 43.99 x 8.79 x 68.38 cm
- Weight: 22.04 kg
- Typical/maximum power draw: 388 W / 979 W (excluding transceivers)
- Operating temperature: 0 to 40 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 90%
- Operating altitude: 0 to 3,000 m
- Minimum EOS: 4.31.1

FAQs

Q: What software licence does this SKU include?
A: The -FLX suffix indicates the FLX licence is bundled. On Group 4 fixed switches, FLX covers full routing to 2M routes, EVPN, VXLAN, segment routing and advanced MPLS. Other Group 4 add-on licences are sold separately.

Q: How is this model powered and cooled?
A: It has 2 x hot-swap AC power supplies in 1+1 redundancy (PWR-1512-AC) and 4 x hot-swap fans in N+1 redundancy (FAN-7012H). Airflow on this SKU is front to rear. Typical draw is 388 W and maximum is 979 W, excluding transceivers.

Q: What optics and cables can I use?
A: The 48 100G ports take QSFP100 optics and cables. The 6 400G ports take QSFP-DD, including 400GBASE-CR8, AOC, SR8, DR4 and XDR4, and support breakout to 200G, 100G, 50G, 40G and 25/10G. The OSFP-LS port supports 400G ZR/ZR+.

Q: What does the R3AK designation mean?
A: R3AK is the Large Scale variant of the 7280R3A. It adds large routing tables and TunnelSec encryption on all ports, compared with the standard models in the family.

Q: Which EOS version does it need?
A: It requires Arista EOS 4.31.1 or later and can be managed with CloudVision.