Arista 7300 Series

High Performance, Feature Rich 10/40GbE Systems: 40Tbps & 512x 40GbE, 2048x 10GbE, 768x 10GBASE-T

Designed for large scale leaf / spine and Spline™ networks the Arista 7300 Series modular switches deliver industry leading density and performance with a rich choice of interface types for server leaf and spine network deployment. They combine scalable L2 and L3 features with comprehensive network monitoring, virtualization and visibility features.


Featured Video: 7300 Series


The Foundation for Spline Networking


Architected to Operate at Cloud Network Scale

  • 40Tbps system capacity / 30 Billion PPS
  • Wire speed unicast & mcast
  • Class leading latency and Dynamic Buffer Allocation
  • Scalable Leaf / Spine and Spline Designs

Optimized for Virtualization and Cloud

  • VXLAN and EOS Network Tracers
  • Provisioning & scripting with Python and ZTP
  • VM Tracer and LANZ for real-time traffic visibility

Comprehensive L2/L3 and 10G/40G Options

  • Choice of 32x 40G / 48x 10GBASE-T + 4x 40G / 48 x 10G-SFP + 4x 40G
  • Up to 2048x 10G or 512x 40G in a single system
  • Flexible 10GBASE-T option for 100M/1G/10G server access
  • Rich L2 and L3 resources: MAC 288K / IPv4 Hosts 208K / 16K IPv4 & 8K IPv6 routes

Arista 7300 Technical Architecture

The Arista 7300X Series is designed with the latest in system on chip (SoC) silicon and software. The 7300X Series architecture is optimized for fully meshed east-west traffic patterns with mixed traffic loads found in both private and public cloud networks.

The 7300X Series modular switches are designed for continuous operations with system wide monitoring of hardware and software components, simple serviceability and reversible airflow options. The series offers high availability of all critical components with redundant supervisors, power supplies, fabric and fan modules.


Featured Video: Modern Scale Out Cloud Network Designs

Lincoln Dale


High Performance 10/40GbE Ethernet Spline

  • 2048 x 10Gb, 512 x 40Gb and 768 10GBASE-T Ethernet Ports
  • 2.56Tb of capacity for each linecard slot, for over 40Tbps total
  • Dynamic Buffer Allocation to protect against drops under congestion
  • Aggregate 30 Billion PPS of L2/L3 forwarding

High Availability

  • Redundant Supervisor, fabric, fans and power
  • Data Center optimized with front to back and back to front airflow
  • In Service Software Upgrades
  • Self-healing stateful fault repair (SFR)
  • Stateful Supervisor Switchover*

High Performance Fabric Modules

  • Efficient utilization of fabric using DLBF to optimally balance traffic
  • 40Tbps Fabric
  • Fabric with individually removable fan modules to improve system reliability

* Not yet supported in EOS.

Arista 7300 Series Technical Specifications

The Arista 7300X Series modular switches provide industry leading 10/40GbE density and performance. Available as a choice of 16 slot, 8 slot and 4 slot systems they combine wirespeed forwarding with comprehensive L2 and L3 features.

The 7300X Series supports a choice of high density wirespeed layer 2/3/4 performance linecards that offer a flexible combination of 1/10/40GbE switching to design large leaf and spine networks for scale-out of east-west traffic patterns with low latency and power efficiency.


Featured Video: 7300 Series Deep Dive


System Performance:

The Arista 7300 systems can be fully populated with up to 16, eight or four linecards respectively

Description Half rack of switching that delivers the highest 40GbE capacity in the industry An 8 slot system with airflow for server or network rows replacing Catalyst 6509 Compact high density and resilient system with flexible interface choices for leaf / spine and collapsed spline
Switching Capacity 40Tbps 20Tbps 10Tbps
Linecards 16 8 4
10G Ports 2048 1024 512
40G Ports 512 256 128
Forwarding Rate 30 BPPS 15 BPPS 7.5 BPPS
Total Buffer 384MB 192MB 96MB
Rack Units 21 13 8


Linecard Comparison:

7300X Series linecards provide a choice of speed and density addressing 1/10/40 GbE requirements with a consistent set of features. Each module is power efficient and delivers consistent performance and low latency with a dynamically allocated buffer that is optimized for fully meshed East-West traffic patterns.

Ports 32 QSFP+

48 SFP+


48 10G-T


10GbE Interfaces 128 (QSFP+) 64 64 (48-T, 16-X)
40GbE Interfaces 32 4 4
Port Buffer 24MB 12MB 12MB
Nominal Power 238W 211W 290W
Forwarding Rate 1.92Bpps 960Mpps 960Mpps


Linecard Features:

Each 7300X Series linecard delivers a consistent set of features supporting layer 2 and layer 3 data center designs with predictable and linear scaling.

 7300 Linecards
Latency 550ns - 2usec (40G)
MAC Table Size 32K to 288K
Maximum IPv4 Host Routes 32K to 288K
Maximum IPv6 Host Routes 16K to 104K
Maximum IPv4 Unicast Route Prefixes 16K to 144K
Maximum IPv6 Unicast Route Prefixes 8K to 77K*
Maximum Multicast Groups 288K with 8K unique groups
Maximum ACL Entries 4-8K Ingress, 1-2K Egress
Maximum LAG Members Up to 64 member ports
Maximum LAG Groups Up to 1024
Maximum ECMP Fanout 64-way