CISO Tribune

Vendor comparison · 2 companies

Arista Networks vs Fidelis

Arista Networks builds scalable high-performance and ultra-low-latency networks for data center and cloud computing environments. Fidelis sells a range of solutions that includes XDR, NDR, EDR and CNAPP, offered for proactive cyber defense. CISO Tribune files both under Network detection and response. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Arista Networks
  • Fidelis
Arista Networks vs Fidelis: Products, Customers and Funding Compared
Arista NetworksArista Networks builds scalable high-performance and ultra-low-latency networks for data center and cloud computing environments.arista.comFidelisFidelis sells a range of solutions that includes XDR, NDR, EDR and CNAPP, offered for proactive cyber defense.fidelissecurity.com
What it sells
  • Arista EOS®EOS is the core of Arista cloud networking solutions for data centers and cloud networks.
  • CloudVision®A network operation, automation, and visibility platform.
  • CloudEOS[6]Arista’s multi-cloud and cloud-native networking solution.
  • DANZ Monitoring Fabric[4][7]A network packet broker for organization-wide visibility and security.
  • Arista 7500R Series[9]Modular universal spine switches for large virtualized and cloud networks.
  • Arista 7800R3 Series[10]Modular switches that are the 3rd generation of the R-Series universal spine switches.
  • Fidelis Elevate[3][4]Fidelis Elevate is an XDR platform. Fidelis Elevate correlates threats across network, endpoint and cloud.
  • Fidelis Network[1][3][4]Fidelis Network is an NDR platform with network traffic analysis and network behaviour anomaly detection.
  • Fidelis Endpoint[1][3][4]Fidelis Endpoint is an EDR solution that gives hands-on control to pinpoint and eradicate threats.
  • Fidelis Deception[1][3][4]Fidelis Deception delivers alerts and events from decoys, AD credentials, poisoned data and suspicious traffic.
  • Fidelis Active Directory Intercept[1][3][4]Fidelis Active Directory Intercept combines an AD-aware NDR platform with Active Directory deception technology.
Categories
Headquarters
Santa Clara, United States[2]Not stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Public (NYSE: ANET)[2][4][15]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • October 7, 2026Arista Networks announced an open Ethernet rack-scale portfolio for scale-up and scale-out AI infrastructure, developed with several compute technology companies.[14]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: listed, seen November 5, 2026[15]
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Arista sells mainly for data center, hybrid cloud, campus, wide area, and low-latency environments. Arista says EOS has delivered reliability for service providers, enterprises, broadcasters and others. Arista describes its routing solutions for cloud, service provider and enterprise use cases. Its campus switches are described for the IoT enabled campus. One data center switch series is described for large enterprises, big data and machine learning environments, traditional and virtualized data centers and service provider edge networking roles.A hospital is named as a customer that uses Fidelis Security for network security. Fidelis describes continuous monitoring and protection for legal and healthcare data. Fidelis Halo is a platform for protection and compliance across cloud, hybrid and on-premises workloads. Fidelis Endpoint provides EDR protection on-premises and in the cloud.
Last verified
November 9, 2026November 6, 2026

Where they overlap

  • Arista Networks and Fidelis are both filed under Network detection and response.

Where they differ, field by field

  • Arista Networks's primary category is Network detection and response; Fidelis's is EDR and XDR.
  • Fidelis is also filed under Deception technology and Cloud-native application protection (CNAPP).
  • Arista Networks lists Arista EOS®, CloudVision®, CloudEOS, DANZ Monitoring Fabric, Arista 7500R Series and 1 more. Fidelis lists Fidelis Elevate, Fidelis Network, Fidelis Endpoint, Fidelis Deception and Fidelis Active Directory Intercept.
  • Arista Networks is headquartered in Santa Clara, United States.
  • Arista Networks is a public company listed on NYSE as ANET.

What it sells: Arista Networks

What Arista EOS® does
Arista EOS is a Linux-based network operating system that runs a single binary software image across the Arista switching family. It is packaged as bundled EOS on Arista switches, Containerized EOS (cEOS), or virtualized EOS (vEOS).
What CloudVision® does
CloudVision is Arista’s network operation, automation, and visibility platform. Arista says it provides domain-specific features in data center, campus wired and wireless, and cloud networks.
What CloudEOS does[6]
CloudEOS is Arista’s multi-cloud and cloud-native networking solution. CloudEOS integrates with Arista CloudVision to simplify interconnecting and managing multi-cloud, cloud-native and on-premises enterprise networks.
What DANZ Monitoring Fabric does[4][7]
DANZ Monitoring Fabric (DMF) is a network packet broker delivering multi-tenant monitoring-as-a-service. Arista says it delivers a visibility solution for on-premise data centers, enterprise campus/branch and 4G/5G mobile networks.
What Arista 7500R Series does[9]
The 7500R Series combines 100G density with internet scale table sizes and L2 and L3 features. Systems come in 16, 12, 8 and 4 slot options.
What Arista 7800R3 Series does[10]
The Arista 7800R3 Series comes in 16, 12, 8 and 4 slot systems with wirespeed ports from 10G to 400G. It uses a deep buffer virtual output queue (VOQ) architecture that eliminates head-of-line (HOL) blocking.

What it sells: Fidelis

What Fidelis Elevate does[3][4]
Fidelis Elevate is an XDR platform. Fidelis Elevate correlates threats across network, endpoint and cloud. Fidelis Elevate automates detection and response workflows.
What Fidelis Network does[1][3][4]
Fidelis Network is an NDR platform with network traffic analysis and network behaviour anomaly detection across all ports and protocols. Fidelis Network retains metadata for up to 360 days to support investigations and compliance.
What Fidelis Deception does[1][3][4]
Fidelis Deception delivers alerts and events from decoys, AD credentials, poisoned data and suspicious traffic. Fidelis Deception monitors IoT and cloud resources as deceptive objects.
What Fidelis Active Directory Intercept does[1][3][4]
Fidelis Active Directory Intercept combines an AD-aware NDR platform, integrated Active Directory deception technology and foundational AD log and event monitoring. Fidelis Active Directory Intercept monitors for suspicious changes and privilege escalation attempts.

Questions about Arista Networks and Fidelis

What do Arista Networks and Fidelis sell?
Arista Networks sells Arista EOS®, CloudVision®, CloudEOS, DANZ Monitoring Fabric, Arista 7500R Series and 1 more. Fidelis sells Fidelis Elevate, Fidelis Network, Fidelis Endpoint, Fidelis Deception and Fidelis Active Directory Intercept.
Are Arista Networks and Fidelis in the same category?
They share Network detection and response. Arista Networks's primary category is Network detection and response and Fidelis's is EDR and XDR.
Where are Arista Networks and Fidelis headquartered?
Arista Networks is headquartered in Santa Clara, United States.
Who owns Arista Networks and Fidelis?
Arista Networks is a public company listed on NYSE as ANET.
Who are Arista Networks and Fidelis sold to?
From its own pages, Arista sells mainly for data center, hybrid cloud, campus, wide area, and low-latency environments. A hospital is named as a customer that uses Fidelis Security for network security.
What have Arista Networks and Fidelis announced recently?
October 7, 2026: Arista Networks announced an open Ethernet rack-scale portfolio for scale-up and scale-out AI infrastructure, developed with several compute technology companies.

About Arista Networks

Arista Networks builds scalable high-performance and ultra-low-latency networks for data center and cloud computing environments. Arista cloud networking serves data center, hybrid cloud, campus, wide area, and low-latency environments. Arista says the principles of its cloud networking include open APIs, programmability at every layer, cloud automation, self-service zero-touch provisioning, and a standards-based Universal Cloud Network (UCN) deployment architecture.[5]

Arista says its data-driven cloud networking uses an open approach around the Arista EOS network stack and NetDL. Arista applies AI/ML to automation and security challenges. Arista EOS NetDL consolidates datasets for applying AI/ML methods in NetOps and SecOps environments and presents a single API surface for network and network-related data. Arista Autonomous Virtual Assist (Arista AVA™) is Arista’s AI technology. Arista says AVA can address challenges in Network Detection and Response (NDR), Quality of Experience (QoE) management, and proactive NetOps.[5]

Arista Extensible Operating System (EOS®) is the core of Arista cloud networking solutions for data centers and cloud networks. Arista describes EOS as a Linux-based network operating system that runs a single binary software image across the Arista switching family. EOS is packaged as bundled EOS on Arista switches, Containerized EOS (cEOS), or virtualized EOS (vEOS). Arista EOS enables programmatic control of the network. Arista Smart System Upgrade (SSU) reduces maintenance windows through intelligent insertion and removal of network elements. Arista offers Zero Touch Provisioning (ZTP) and Zero Touch Replacement (ZTR) for new and replacement switches.[6]

CloudVision is Arista’s network operation, automation, and visibility platform. Arista says CloudVision provides domain-specific features in data center, campus wired and wireless, and cloud networks and helps enterprises simplify network operations by breaking down traditional network management silos. CloudVision integrates the physical network with solutions from Arista ecosystem partners, including VMware, OpenStack, Palo Alto Networks, Microsoft, and many others. CloudEOS is Arista’s multi-cloud and cloud-native networking solution. CloudEOS integrates with Arista CloudVision to simplify interconnecting and managing multi-cloud, cloud-native and on-premises enterprise networks. CloudEOS, deployed with Universal Cloud Network Designs, provides the elements required for building multi-cloud connectivity with consistent isolation across the entire enterprise environment.[5][6]

DANZ Monitoring Fabric (DMF) is a network packet broker for organization-wide visibility and security, delivering multi-tenant monitoring-as-a-service. DMF provides a scale-out fabric design based on merchant silicon hardware, with integrated analytics and packet recording intelligence. DMF provisions traffic processing functions including regex filtering, deduplication, slicing, masking, flow data generation/collection and application recognition through a single DMF fabric controller. Arista says DMF delivers a visibility solution for on-premise data centers, enterprise campus/branch and 4G/5G mobile networks.[7]

The 7050X3 supports speeds including 10G, 25G, 40G and 100G in compact form factors. The 7050X3 Series enables highly scalable two-tier network designs with ECMP, MLAG and VXLAN technologies. The Arista 7500R Series modular switches are universal spine switches designed for large virtualized and cloud networks. The 7500R Series combines 100G density with internet scale table sizes and L2 and L3 features. The Arista 7500R Series comes in 16, 12, 8 and 4 slot systems with wirespeed ports from 1G to 100G. The Arista 7800R3 Series modular switches are the 3rd generation of the R-Series universal spine switches. The Arista 7800R3 Series comes in 16, 12, 8 and 4 slot systems with wirespeed ports from 10G to 400G. The Arista 7800R3 Series uses a deep buffer virtual output queue (VOQ) architecture that eliminates head-of-line (HOL) blocking.[8][9][10]

The 720D series delivers wirespeed connectivity for campus user workloads and is designed for the IoT enabled campus. The 720D product family provides a range of PoE and data-only systems. The 7135LB series devices are optimized for 25G speed and use a programmable FPGA integrated with L1 connectivity. The 7135LB comes in a 1RU form factor with 48 x SFP28 ports and 4 x QSFP ports and performs layer 1+ switching in 5ns at 25G speed.[11][12]

Arista routing solutions cater to use cases for cloud, service providers and enterprises. Arista’s 7280R3 Universal Leaf and 7500R3 and 7800R3 Universal Spine platforms are powered by Arista EOS and CloudVision. The 7800R3 series scales to 460 Tbps or 576 ports of 400G with a single consistent architecture.[1][3][5][8][11][13]

Arista Networks on the record

Sources

Arista Networks full record

  1. [1]Network detection and responseArista Networks · arista.com · published February 23, 2022 · Tier A
  2. [2]Company overviewArista Networks · arista.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]24357 pr 20260721Arista Networks · arista.com · published July 21, 2026 · Tier A
  4. [4]Data-Driven Cloud Networking - AristaArista Networks · undated page, accessed October 23, 2026 · Tier A
  5. [5]Data-driven AI Enabled Cloud Networking | Data Center AI Cloud Networking - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  6. [6]Arista EOS® - Cloud Network Operating System - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  7. [7]DANZ Monitoring Fabric - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  8. [8]Arista 7050X3 Series - Ethernet Switch for Data Center Networks - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  9. [9]Arista 7500R Series - Universal Spine Switch for Cloud Networking - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  10. [10]Arista 7800R3 Series - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  11. [11]Arista 720D Series - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  12. [12]Arista 7135LB Series - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  13. [13]Cloud Routing | Arista Cloud Grade Routing - AristaArista Networks · undated page, accessed November 5, 2026 · Tier A
  14. [14]Arista Announces Rack-Scale Architectures for Scale-Up and Scale-Out AI FabricsArista Networks · published October 7, 2026 · Tier A
  15. [15]Arista Networks Reviews, Ratings & Features 2026 | Gartner Peer InsightsGartner Peer Insights · undated page, accessed November 5, 2026 · Tier C

Fidelis full record

  1. [1]fidelissecurity.comFidelis Security · fidelissecurity.com · undated page, accessed November 6, 2026 · Tier A
  2. [2]AboutFidelis Security · fidelissecurity.com · undated page, accessed November 6, 2026 · Tier A
  3. [3]Fidelis Security: Detect, Investigate, Hunt, Respond 9x FasterFidelis Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Top Cybersecurity Solutions | Fidelis SecurityFidelis Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]Trust Center - Commitment to Your Security | Fidelis SecurityFidelis Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Service & Support | Fidelis SecurityFidelis Security · undated page, accessed November 10, 2026 · Tier A

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