Arista 7000

Arista 7000
Name	Arista 7000
Manufacturer	Arista Networks
Family	7000 Series
Introduced	2010s
Type	Data center switch
Ports	1/10/40/100GbE options
Switching capacity	up to terabit-scale
Forwarding rate	line-rate
Operating system	EOS

Arista 7000 is a series of fixed-configuration and modular Ethernet switches designed for data center and campus deployments. Developed by Arista Networks, the series targets high-performance environments such as cloud computing, high-frequency trading, web-scale services, and research networks. The product line integrates hardware forwarding platforms with Arista's Extensible Operating System (EOS), aiming to deliver low-latency switching, high throughput, and programmability.

Overview

The family was introduced amid rising demand from Facebook and Google-scale operators and competitors such as Cisco Systems and Juniper Networks. It reflects architectural trends influenced by Merchant Silicon and bespoke ASIC development alongside strategic partnerships with chipset vendors like Broadcom and Intel. The design philosophy emphasizes open programmability and automation, aligning with practices from Amazon Web Services, Microsoft Azure, and Netflix for large-scale infrastructure management. The series supports integration into fabric topologies favored by Clos network proponents and network designs used by NASA science networks and CERN research clusters.

Hardware Specifications

Models within the series offer a range of physical and electrical specifications, including 24- to 48-port 10GbE line cards, 40GbE and 100GbE uplinks, and modular supervisor planes. Hardware choices reflect competition with platforms such as Cisco Nexus 7000 and Juniper QFX series. The switches use high-performance ASICs from suppliers like Broadcom Tomahawk and sometimes merchant silicon comparable to Barefoot Networks designs. Physical attributes encompass front-panel SFP+/QSFP+ ports, redundant power supplies similar to designs used by Equinix data centers, and fan trays comparable to enterprise hardware deployed by Yahoo!. Management interfaces include out-of-band console ports and RJ45/GbE management similar to HP Enterprise offerings. Environmental and operational compliance lines up with standards embraced by IEEE Ethernet specifications and data center guidelines from Uptime Institute.

Software and Features

The series runs Arista's Extensible Operating System (EOS), which incorporates a Linux-based userspace, a stateful database, and APIs for orchestration used by Ansible, Puppet, and Chef. EOS supports programmability via Python scripting, gRPC, and integrations with telemetry platforms such as Prometheus and Grafana. Features include MLAG for multi-chassis link aggregation, VXLAN routing and EVPN control-plane support used by VMware NSX and OpenStack deployments, and advanced QoS and ACL capabilities comparable to Cisco IOS XR. High-availability features mirror techniques employed at Netflix and Dropbox for automated failover, and support for monitoring tools used by Splunk and ELK Stack.

Performance and Scalability

Architected for line-rate forwarding, the switches are optimized for low microsecond latency and high packet-per-second throughput needed by High-frequency trading firms and Bloomberg-class financial platforms. Scalability options include spine-and-leaf topologies used by Facebook and Google, and fabric automation patterns promoted by OpenConfig and IETF working groups. Performance tuning leverages TCAM allocations similar to approaches in Cisco devices and supports large MAC and routing table scales necessary for Internet2-style research backbones and content-delivery networks like Akamai.

Deployment and Use Cases

Common deployments include cloud fabrics for hyperscalers such as Google Cloud and Microsoft Azure, private clouds built with OpenStack or Kubernetes orchestration, and enterprise campus backbones for financial institutions like Goldman Sachs and JPMorgan Chase. The line is also used in high-performance computing clusters at institutions such as Lawrence Berkeley National Laboratory and in carrier-neutral colocation facilities like Equinix to interconnect customer racks. Use cases emphasize dense east-west traffic handling found in microservices architectures championed by Spotify and Dropbox.

Competitors and Market Position

Arista's 7000 Series competes primarily with Cisco Nexus and Juniper QFX families, while also facing alternatives from Cumulus Networks (now part of Nvidia), Mellanox Technologies (acquired by Nvidia), and whitebox vendors leveraging Open Network Install Environment profiles. Arista's market positioning leverages EOS integration, telemetry, and automation features to appeal to cloud-native operators and service providers such as AT&T and Verizon. Strategic customer wins and procurement by hyperscalers have defined Arista's competitive posture against incumbents like Cisco Systems and challengers such as Huawei in global markets.

Reception and Reviews

Industry reviews have highlighted the series' strengths in low-latency performance, operational automation, and developer-friendly tooling, often referencing benchmarks used by institutions like NetBench and third-party evaluators such as Ixia and Spirent. Analysts at firms like Gartner and IDC frequently cite Arista for innovation in cloud networking, while reviewers from Network World and The Register note strong EOS capabilities and evolving feature sets. Criticisms in some reviews relate to cost relative to emerging whitebox options promoted by Facebook's Open Compute Project and the learning curve for operators transitioning from Cisco IOS paradigms to EOS's model-driven management.

Category:Network switches Category:Arista Networks