Overview

Increased adoption of high performance servers coupled with applications using

higher bandwidth is accelerating the need for dense 100 Gigabit Ethernet switching

in both leaf and spine tiers of modern networks. The Arista 7260X3 Series are

purpose built high performance, high density, xed con guration, data center

switches with wire speed layer 2 and layer 3 features, combined with advanced

features for software de ned cloud networking and emerging requirements.

With 64 QSFP100 ports the 7260CX3-64 is a dense 40/100GbE system that can

support a exible combination of up to 64x 40/100GbE, 128x 50GbE or 10/25GbE of

wire speed performance in a 2RU system. The Arista 7260CX3-64 combines low

latency, and a shared packet bu er pool of 42MB that is allocated dynamically to

ports that are congested.

Combining 100GbE density and industry leading power e ciency with typical

power consumption under 10W per 100GbE port the 7260CX3-64 is ideal for both

middle or end of row leaf or collapsed spine tiers with air ow choices for back to

front, or front to back.

With support for a exible combination of speeds including 10G, 25G, 40G, 50G and

100G and combined with Arista EOS, the 7260CX3-64 delivers rich features for big

data, cloud, virtualized and traditional designs and accommodates the myriad

di erent applications and east-west tra c patterns found in modern data centers.

7260X3 Series 10/25/40/50/100G Data Center Switches

Data Sheet

Product Highlights

Performance

• 7260CX3-64: 64x QSFP100

• 7260CX3-64E: 64x QSFP100

• Flexible 10G to 100G support on all ports

• Up to 128 x 10G, 25G or 50G using

breakout cables

• Up to12.8 terabits per second

• Up to 4.2 billion packets per second

• Wire speed L2 and L3 forwarding

• Latency from 450ns

Data Center Optimized Design

• 64 QSFP100 ports in 2RU

• Under 6W per port typical

• Over 93% e cient power supplies

• 1+1 redundant & hot-swappable power

• N+1 redundant & hot-swappable fans

• Front-to-rear or rear-to-front cooling

• Tool less rails for simple installation

Cloud Networking Ready

• VXLAN and VM Tracer

• OpenFlow, DirectFlow and eAPI

• 264K MAC entries

• 180K IPv4 Routes

• 200K IPv4 Host Routes

• 42MB integrated smart bu er

• Dynamic Bu er Allocation up to 10.5MB

per slice

Resilient Control Plane

• High Performance x86 CPU

• 8GB DRAM

• User applications can run in a VM

Advanced Provisioning & Monitoring

• CloudVision

• Zero Touch Provisioning (ZTP)

• LANZ for microburst detection

• DANZ Advanced Mirroring for visibility

• sFlow

• Self-con gure and recover from USB

• Tra c aware ECMP and UCMP

• PFC and ETS for congestion management

Arista Extensible Operating System

• Single binary image for all products

• Fine-grained truly modular network OS

• Stateful Fault Containment (SFC)

• Stateful Fault Repair (SFR)

• Full Access to Linux shell and tools

• Extensible platform - bash, python, C++

Arista EOS

The Arista 7260X3 series runs the same Arista EOS software as all Arista products,

simplifying network administration. Arista EOS is a modular switch operating system

with a unique state sharing architecture that cleanly separates switch state from

protocol processing and application logic. Built on top of a standard Linux kernel, all

EOS processes run in their own protected memory space and exchange state

through an in-memory database. This multi-process state sharing architecture

provides the foundation for in-service-software updates and self-healing resiliency.

With Arista EOS, advanced monitoring and automation capabilities such as Zero

Touch Provisioning, VMTracer and Linux based tools can be run natively on the

switch with the powerful x86 CPU subsystem.

Arista 7260CX3-64: 64 x 40/100GbE QSFP100 ports, 2 SFP+ ports