Arista DCS-7280CR3K-96-FLX-F | 7280R3K 96-Port 100G QSFP100 Switch, Front-to-Rear, 2x AC

SKU:DCS-7280CR3K-96-FLX-F

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Description

The Arista 7280R3K is a 2RU fixed data centre switch router built for internet peering, edge routing and large-scale cloud or service provider networks. The K large-routes profile pairs 96 QSFP100 ports with a 16GB deep packet buffer, 64GB of system memory and a 120GB SSD, and runs Arista EOS.

This variant provides 96 x QSFP100 ports, supporting up to 96 x 100G, 192 x 50G, 96 x 40G or 192 x 25/10G with breakouts. Throughput is 9.6 Tbps (19.2 Tbps full duplex) with a 4 Bpps forwarding rate and latency from 3.8 microseconds. With FlexRoute it supports over 5M IPv4 routes. It is configured with front-to-rear airflow and two hot-swap 2400W AC power supplies in a 1+1 arrangement, plus four N+1 hot-swap fans.

The QSFP100 ports accept 100G optics and cables such as SR4, LR4, CWDM4, DR, DAC and AOC, as well as 40G QSFP+ modules, and run at 25G, 40G or 50G through breakout. The switch needs EOS 4.24.0 or later.

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

Features

- Arista EOS: single binary image with a Linux-based modular network operating system
- FlexRoute engine for full internet routing tables in hardware, extended to over 5M routes on the 7280R3K
- Deep buffers with Virtual Output Queues to eliminate head-of-line blocking
- Wire-speed Layer 2 and Layer 3 forwarding with up to 512-way ECMP
- Cloud-grade routing including EVPN, segment routing, MPLS, TI-LFA, PTP and SyncE
- Programmable APIs (JSON-RPC, NETCONF), ZTP, LANZ microburst detection, CloudVision and accelerated sFlow
- Redundant hot-swap power supplies and fans, designed for NEBS
- Flexible port speeds with 25G, 40G and 50G modes on the 100G QSFP 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: 96 x QSFP100
- Maximum 100G ports: 96
- Maximum 50G ports: 192
- Maximum 40G ports (QSFP+): 96
- Maximum 25/10G ports: 192
- Throughput: 9.6 Tbps (19.2 Tbps full duplex)
- Forwarding rate: 4 Bpps
- Latency: from 3.8 us
- Packet buffer: 16 GB
- CPU: Quad-Core x86
- System memory: 64 GB
- Flash storage: 8 GB
- SSD storage: 120 GB
- Management port: 1 x 100/1000
- Serial console: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2 x hot-swap PWR-2411 2400W AC (1+1)
- Fans: 4 x hot-swap (N+1), FAN-7012H
- Airflow: front to rear
- Typical / maximum power draw: 1003 W / 1803 W
- Form factor: 2RU
- Dimensions (WxHxD): 43.99 x 8.79 x 76.1 cm
- Weight: 23.6 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.24.0

FAQs

Q: Which software licence applies to this switch?
A: It runs Arista EOS and sits in EOS Feature License Group 4, so optional software licences use the LIC-FIX-4 series. The FLX licence adds full routing, EVPN, VXLAN, segment routing and advanced MPLS.

Q: What power supplies does this model use?
A: It uses two hot-swap PWR-2411 2400W AC power supplies in a 1+1 redundant arrangement, with 200-240V AC input and C20 inlets. A DC supply option, PWR-2411-DC, is available separately.

Q: What optics and cables work in the QSFP100 ports?
A: The ports support 100G SR4, LR4, CWDM4, DR, DAC and AOC, plus 40G QSFP+ and 25G or 50G breakout. Arista's transceiver datasheet lists the full range.

Q: How does the 7280R3K differ from the standard 7280R3?
A: The K model uses the large-routes profile, supporting over 5M IPv4 routes with FlexRoute, which suits internet peering and large routing tables.

Q: What is the airflow direction and which fan module does it use?
A: This variant has front-to-rear airflow with four hot-swap N+1 fans of type FAN-7012H.