Arista DCS-7280CR3AK-24D12-F | 7280R3A 24-Port 100G, 12-Port 400G Switch, TunnelSec, 2x AC

SKU:DCS-7280CR3AK-24D12-F

Stock Status: Enquire

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Description

The 7280R3A 7280CR3AK-24D12 is a fixed 1RU 100G and 400G data centre switch router built for spine, leaf, Internet peering, carrier edge and data centre interconnect roles. This is the large routes variant with TunnelSec encryption, front-to-rear airflow and two AC power supplies.

It provides 24 QSFP100 ports and 12 QSFP-DD ports, with 14.4 Tbps full duplex throughput and 2.7 Bpps forwarding at latency from 3.8 us. The FlexRoute engine on the large routes model scales beyond 5M IPv4 routes. Memory includes an 8 GB packet buffer and 64 GB system memory, driven by an eight-core x86 CPU with a 480 GB SSD. TunnelSec supports MACsec, IPsec and VXLANsec encryption on all ports at line rate. Power is supplied by two hot-swap 1500 W AC units in a 1+1 arrangement, with three hot-swap fans in N+1.

The 400G ports take 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, LR4, PLR4 and ZR optics, and support breakout to 200G, 100G, 50G and 25G. The 100G ports take SR4, XSR4, SWDM4, SRBD, LR, LR4, LRL4 and XCWDM4 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

- Line-rate TunnelSec encryption (MACsec, IPsec, VXLANsec) with AES-256-GCM on all ports from 10G to 400G
- FlexRoute engine for Internet-scale routing, with over 5M IPv4 routes on the large routes model
- EVPN-VXLAN, MLAG and up to 512-way ECMP
- Virtual output queue architecture with deep buffers to avoid head-of-line blocking
- PTP and SyncE precision timing, Accelerated sFlow, LANZ, DANZ and CloudVision support
- 400G-ZR and ZR+ support for DWDM
- 1+1 hot-swap power supplies and N+1 hot-swap fans, designed for NEBS
- Zero Touch Provisioning with Arista EOS, Linux shell access and bash, python and C++ extensibility

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: 24 x QSFP100, 12 x QSFP-DD
- Maximum 400G ports: 12
- Maximum 100G ports: 72
- Maximum 50G ports: 116
- Maximum 40G ports (using QSFP+): 36
- Maximum 25/10G ports: 116
- Maximum total interfaces: 116
- Throughput (full duplex): 7.2 (14.4) Tbps
- Packet forwarding: 2.7 Bpps
- Latency: from 3.8 us
- Large routes: over 5M IPv4 routes with FlexRoute
- Encryption: TunnelSec on all ports
- CPU: eight-core x86
- System memory: 64 GB
- Packet buffer memory: 8 GB
- SSD storage: 480 GB
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management ports: 1 x 100/1000
- Serial ports: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2 x hot-swap 1500 W AC, 1+1 redundant (PWR-1511-AC)
- AC input: 200-240 VAC, 50/60 Hz, 9.6 A max
- Fans: 3 x hot-swap, N+1 redundant (FAN-7011H)
- Airflow: front to rear
- Typical / maximum power draw: 346 W / 845 W (excluding transceivers)
- Dimensions (W x H x D): 43.99 x 4.37 x 59.2 cm
- Rack units: 1 RU
- Weight: 14.79 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.31.1

FAQs

Q: Does this switch need a licence to enable TunnelSec?
A: TunnelSec is an EOS licensed feature and needs a licence file to enable. The platform is in EOS Feature License Group 4, which also covers optional Enhanced L3, Virtualization, Monitoring and Automation, FLX routing and MACsec licences.

Q: What power supplies does it use?
A: It uses two hot-swap 1500 W AC supplies (PWR-1511-AC) in a 1+1 redundant arrangement, taking 200-240 VAC at 50/60 Hz. Typical draw is 346 W and maximum is 845 W, excluding transceivers.

Q: Which optics work in the 400G and 100G ports?
A: The 400G QSFP-DD ports take 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, LR4, PLR4 and ZR modules, with breakout to 200G, 100G, 50G and 25G. The 100G QSFP ports take SR4, XSR4, SWDM4, SRBD, LR, LR4, LRL4 and XCWDM4 optics.

Q: What airflow direction does this SKU have?
A: This -F model is front-to-rear airflow. The platform also exists with rear-to-front airflow under a different SKU.

Q: How does this model differ from the standard 7280R3A variants?
A: This is the large routes (K) model, which uses the FlexRoute engine to support over 5M IPv4 routes and includes TunnelSec hardware encryption on all ports.