Arista DCS-7250QX-64-D# | 7250X 64-Port 40G QSFP+ Switch, SSD, No Fans/PSU

SKU:DCS-7250QX-64-D#

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Description

The Arista 7250QX-64 is a fixed-configuration 2RU data centre switch in the 7250X Series, built for dense 10G and 40G server farms, cloud, big data and virtualised environments. It suits middle-of-row or end-of-row leaf and collapsed spine tiers in large leaf-spine networks, and runs Arista EOS.

It provides 64 QSFP+ ports, supporting up to 64x 40GbE or 256x 10GbE at wire speed using breakout cables. Throughput is 5 Tbps and 3840 Mpps, with latency of 550 to 1800 ns and a 48MB dynamic packet buffer. A quad-core x86 CPU, 8GB RAM and 4GB flash are fitted. This variant includes the 100GB SSD and is supplied without fans or power supplies, so the 1+1 hot-swap PSUs and the four N+1 fans are ordered separately, with the airflow direction matching on both. Typical power draw is 622W and maximum is 1200W.

The QSFP+ ports accept 40GBASE-SR4, XSR4, UNIV, LR4, LRL4, ER4 and PLR4/PLRL4 optics, AOC and 40GBASE-CR4 DAC cables, along with 10GBASE-CR QSFP+ to 4x SFP+ breakout cables. Optional feature licences LIC-FIX-3-E, LIC-FIX-3-V and LIC-FIX-3-Z add enhanced Layer 3 routing, virtualisation and monitoring functions.

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

Features

- Wire-speed Layer 2, 3 and 4 forwarding with cut-through latency under 2 microseconds
- Dynamic Buffer Allocation of up to 6MB per port from a shared 48MB pool
- 64-way ECMP and 64-way MLAG for leaf-spine designs
- VXLAN bridging and gateway, VM Tracer and eAPI
- Zero Touch Provisioning, LANZ microburst detection, DANZ mirroring and sFlow
- Optional built-in SSD for logs and packet captures
- Arista EOS with Linux shell access and Python/C++ extensibility
- Smart System Upgrade and Advanced Event Management

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: 64 x QSFP+
- 40GbE ports: 64
- 10GbE ports (breakout): 256
- Throughput: 5 Tbps
- Packets per second: 3840 Mpps
- Latency: 550 to 1800 ns
- CPU: Quad-core x86
- System memory: 8 GB
- Flash storage: 4 GB
- Packet buffer: 48 MB, dynamic buffer allocation
- SSD storage: 100 GB
- Management ports: 2 x 10/100/1000
- Serial port: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supply slots: 2 hot-swap (1+1)
- Fan slots: 4 hot-swap (N+1)
- Typical / maximum power: 622 W / 1200 W
- Dimensions (W x H x D): 44.5 x 8.8 x 55.3 cm
- Weight: 19.2 kg
- Operating temperature: 0 to 40 C
- Storage temperature: -25 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 3,000 m
- MAC addresses: 32K base mode, 288K UFT modes
- IPv4 unicast routes: 16K base, 144K UFT
- ECMP: 64-way, 1K groups

FAQs

Q: Does this switch need a licence?
A: It runs Arista EOS and operates without added licences. Optional feature licences are LIC-FIX-3-E for enhanced Layer 3 (BGP, OSPF, ISIS, PIM, NAT), LIC-FIX-3-V for virtualisation (VM Tracer and VXLAN) and LIC-FIX-3-Z for monitoring and provisioning (ZTP, LANZ, TapAgg, OpenFlow).

Q: What power supplies and fans does it need?
A: It requires 2 hot-swap PSUs in a 1+1 arrangement and 4 N+1 fans. PSU options are PWR-1100AC-F/-R (1100W AC) and PWR-1100-DC-F/-R (1100W DC). Fans are FAN-7002-F for front-to-rear or FAN-7002-R for rear-to-front airflow, and the direction must match the PSUs.

Q: Which optics and cables work with the QSFP+ ports?
A: The ports support 40GBASE-SR4, XSR4, UNIV, LR4, LRL4, ER4 and PLR4/PLRL4 optics, AOC from 3 to 100m, and 40GBASE-CR4 DAC cables from 0.5 to 5m. 10GBASE-CR QSFP+ to 4x SFP+ breakout cables from 0.5 to 5m are also supported.

Q: How does this SKU differ from other 7250QX-64 variants?
A: The -D variant includes the 100GB SSD and is supplied without fans or power supplies, which are ordered separately.

Q: Which rack kits does it use?
A: The rack kits are KIT-2POST and KIT-4POST-NT, and the accessory kit is KIT-7002.