Arista DCS-7280PR3K-24 | 7280R3 24-Port 400G OSFP Switch, Large Routes, 64GB

SKU:DCS-7280PR3K-24

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Description

The Arista 7280R3 Series DCS-7280PR3K-24 is a 1RU fixed data centre switch router with 24 wire-speed 400G OSFP ports. The K variant adds large route table scale and 64 GB of system memory, which suits internet peering, carrier edge and large-scale cloud data centre roles as well as spine and leaf, EVPN overlay and inter-DC networks.

Throughput is 9.6 Tbps (19.2 Tbps FDX) with forwarding of 4 Bpps and latency from 3.8 us. A 16 GB packet buffer with Virtual Output Queues per port avoids head-of-line blocking. The 7280R3K supports over 5M IPv4 routes, backed by a quad-core x86 CPU, 64 GB of system memory and a 120 GB SSD. The OSFP ports break out to 200G, 100G, 50G, 40G, 25G and 10G, up to 192 interfaces in total, subject to optics. Fans and power supplies are configurable, with three hot-swap fans (N+1) and two hot-swap PSUs (1+1), and airflow is front to rear.

The switch runs Arista EOS and uses EOS Feature Licences Group 4, from the LIC-FIX-4 family. Minimum EOS is 4.23.1. The 400G ports support 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, 2FR4, LR4, PLR4 and ZR optics, plus breakout cables and optics.

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

Features

- Wire-speed Layer 2 and Layer 3 forwarding
- 16 GB packet buffer with Virtual Output Queues per port to eliminate head-of-line blocking
- Cloud-grade routing including internet peering, carrier edge VPN, EVPN, LDP, RSVP-TE, SR-TE, FRR and TI-LFA
- Up to 384K MAC addresses, over 5M IPv4 routes on the 7280R3K, and algorithmic ACLs for 100K+ rules
- PTP and SyncE timing support
- CloudVision, LANZ microburst detection, Zero Touch Provisioning and Accelerated sFlow
- Open programmable APIs including JSON-RPC and NETCONF
- Arista EOS single binary image with full Linux shell access, extensible with bash, python and C++
- Redundant hot-swap power supplies and fans, designed for NEBS

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 400G OSFP
- Maximum 400G ports: 24
- Maximum 100G ports: 96
- Maximum 50G ports: 192
- Maximum 40G ports (using QSFP+): 24
- Maximum 25/10G ports: 192
- Maximum total interfaces: 192
- Throughput (FDX): 9.6 (19.2) Tbps
- Packets per second: 4 Bpps
- Latency: From 3.8 us
- CPU: Quad-core x86
- System memory: 64 GB
- Packet buffer memory: 16 GB
- Flash storage: 8 GB
- SSD storage: 120 GB
- USB ports: 1
- Management port: 1 x 100/1000
- Serial port: 1 x RS-232 (RJ-45)
- Hot-swap power supplies: 2 (1+1 redundant)
- Hot-swap fans: 3 (N+1 redundant)
- Airflow direction: Front to rear
- Rack units: 1 RU
- Dimensions (W x H x D): 43.99 x 4.37 x 57.4 cm
- Typical / maximum power draw: 650 W / 1100 W
- Weight: 12.7 kg
- Fan tray: FAN-7011H
- Power supplies: PWR-1511 (AC or DC)
- Minimum EOS: 4.23.1

FAQs

Q: What licensing does the DCS-7280PR3K-24 use?
A: It runs Arista EOS and uses EOS Feature Licences Group 4, the LIC-FIX-4 family. This includes LIC-FIX-4-E for Enhanced L3, LIC-FIX-4-V for Virtualisation and LIC-FIX-4-Z for Monitoring and Automation. Minimum EOS is 4.23.1.

Q: What power supplies does it use?
A: It takes two hot-swap 1+1 redundant PWR-1511 1500W power supplies, available in AC or DC variants. Typical draw is 650 W and maximum is 1100 W. Fans and PSUs are configurable on this SKU, so they are selected separately.

Q: Which optics and cables work in the 400G OSFP ports?
A: The ports support 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, 2FR4, LR4, PLR4 and ZR optics. They also support 200G, 100G, 50G and 25G breakout cables and optics.

Q: What does the K in 7280PR3K mean?
A: The K variant provides large route table scale, with over 5M IPv4 routes, and 64 GB of system memory. It suits internet peering, carrier edge and large data centre roles.

Q: Which fan tray and rack kits does it use?
A: The fan tray is FAN-7011H, with FAN-7011H-F available as a spare. KIT-7001 and 2-post or 4-post tool-free rack kits are available for mounting.