Arista 7160 Series

Arista 7160 Series



Industry leading flexibility, programmability and performance

Highly dynamic cloud data center networks continue to expand bringing with them ever increasing bandwidth demands, accelerating the need for dense 25 and 100 Gigabit Ethernet switching in both leaf and spine tiers of modern networks. The Arista 7160 Series are purpose built fixed configuration 10/25GbE and 100GbE systems with wire speed layer 2 and layer 3 features, built for the highest performance environments, and the largest scale data centers. They combine scalable L2 and L3 resources and high density with a highly programmable and customizable switch architecture.

The 7160 can be deployed in a wide range of open networking solutions including large scale layer 2 and layer 3 cloud designs, overlay networks, virtualized or traditional enterprise data center networks.

The 7160 Series are available in a range of models with a choice of 10GBASE-T and 25GbE SFP with 40/100GbE QSFP uplinks and 40/100GbE systems that offer up to 32 ports of wire speed 100GbE in a 1RU system. The wide range of interfaces and density choice provides deployment flexibility.

Switch Height1RU1RU1RU
Ports32 x 100G QSFP
4 x 10G SFP
48 x 25G SFP and
6 x 100G QSFP
48 x 10GBASE-T
and 6 x 100G QSFP
Max. 10GbE Density1287272
Max. 25GbE Density1287224
Max. 40GbE Density3266
Max. 100GbE Density3266
Max. I/O Rate (Tbps)6.4Tbps3.6Tbps2.16Tbps
Max. Forwarding Rate2.4Bpps (1.2Bpps)2.4Bpps (1.2Bpps)2.4Bpps (1.2Bpps)
LatencyFrom 2usecFrom 2usecFrom 3usec
Packet Buffer Memory24MB
Airflow DirectionFront-to-Back or Back-to-Front


High Performance 10/25/40/100GbE leaf-spine

  • High density wirespeed 10GbE, 25GbE and 100GbE
  • Up to 6.4Tbps of system capacity
  • High density 25GbE SFP IEEE compliant
  • Latency from 2usec port to port
  • Dual mode 10/25GbE support for seamless migration to the next generation of Ethernet

Optimized for DC Designs

  • Adaptable forwarding tables with custom profiles
  • Programmable pipeline for application specific encapsulation
  • Arista AlgoMatch for flexible and scalable network policy control
  • Fully shared 24MB packet buffer
  • Up to 128 Way Multi-Pathing over L2 and L3

Advanced Traffic Control, Provisioning and Monitoring *

High Availability

  • Redundant and hot swap power and cooling
  • Reversible airflow options for hot and cold aisle
  • Smart System Upgrade with Hitless Software Upgrade *
  • Self-healing stateful fault repair (SFR)
  • Resilient ECMP and LAG Hashing

The 7160 Series enables highly scalable two-tier network designs with ECMP, MLAG and VXLAN technologies.

MLAG Spine – All Active Multipath for Layer 2

  • Standards based protocol (LACP)
  • Simplified or eliminates Spanning Tree topology
  • Simple to understand and easy to engineer traffic

ECMP – All Active Multipath for Layer 3

  • Standards based protocol (OSPF, BGP)
  • Eliminates L2 for exceptional scalability and fault tolerance
  • Exceptional scale with consistent performance in 2 tiers

VXLAN Layer 2 over Layer 3 – Best of Both Worlds

  • All active multipath using ECMP (up to 128-way)
  • Single L3 network for all applications
  • L2 extensions for stateful VM – VM over Layer 3
  • Extends L2 with exceptional scalabilty (16M Virtual NWs)
  • Cloudburst over public infrastructure




25/100GbE and 10/40GbE Leaf and Spine solutions for cloud scale and open networking

The Arista 7160 series are purpose-built 10/25GbE and 100GbE data center switches in compact and energy efficient form factors with wirespeed layer 2 and layer 3 features. They combine scalable L2 and L3 resources with an adaptable forwarding engine and a highly programmable and customizable switch architecture that supports multiple overlay technologies and advanced encapsulations. Simple software updates allow reconfiguration of packet parsing, lookups, traffic scheduling, packet modification and traffic monitoring without re-engineering of the switch.

25GbE interfaces with SFP and 100GbE with QSFP on the 7160 Series enables flexible choices of port speed providing unparalleled flexibility and the ability to seamlessly transition data centers to the next generation of Ethernet performance. The 7160 Series provide industry leading power efficiency with airflow choices for back to front, or front to back. Combined with Arista EOS the 7160 Series delivers advanced features for cloud, big data, virtualized and traditional designs.

The following table compares the different 7160 Series models. For a complete catalog of Arista 7000 Series switch specifications click here

Arista 7160 Series Model Comparison

Switch Height1RU1RU1RU
Ports32 x 100G QSFP
4 x 10G SFP
48 x 25G SFP and
6 x 100G QSFP
48 x 10GBASE-T
and 6 x 100G QSFP
Maximum 100GbE Ports3266
Maximum 40GbE Ports3266
Maximum 25G Ports1287224
Maximum 10G Ports1287272
SFP+ Ports448
L2/L3 Throughput6.4 Tbps3.6 Tbps2.16 Tbps
L2/3 PPS2.4Bpps (1.2Bpps)2.4Bpps (1.2Bpps)2.4Bpps (1.2Bpps)
LatencyFrom 2usecFrom 2usecFrom 3usec
Typical Power Draw310W168W408W
AC and DCYesYesYes
Total System Buffer24MB24MB24MB
Smart System Upgrade*YesYesYes
VM TracerYesYesYes
Hitless Speed ChangesYesYesYes
AirflowF/R or R/FF/R or R/FF/R or R/F

* Not yet supported in EOS
Common system resources:

Resources *7160 Series
MAC Table Size128K
Maximum v4/v6 Host Routes128K / 32K
Maximum IPv4 Route Prefixes128K
Maximum IPv6 Route Prefixes64K
Maximum Multicast Groups128K
Maximum LAG Groups128 (in breakout modes)
Maximum LAG Members64 Ports
Maximum ECMP Fanout128-way
Maximum ACL Entries48K

* All resource values based on default forwarding profile and are maximum hardware capacity