Every category where a model named Arista EOS for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant	Since September 2026
Data center networking	Network and edge	5%	5 of 165	0%	5	under 10 labels · led by Arista Networks at 27%

Movement

This is the first edition on this tier, so no move can be computed for Arista EOS yet. From the next edition this section shows, per buyer segment and per category, whether its share moved by more than the measured noise floor.

By model

How each model treated Arista EOS across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.

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Model	First choice	Mention	Labels
Claude Haiku 4.5	0	1	1
GPT-5.4 mini	0	0	0
Gemini 3.5 Flash	0	0	0
Perplexity Sonar	0	0	0
Grok 4.1 Fast	1	0	1
Mistral Small	0	1	1
DeepSeek V4 Flash	0	0	0
Llama 4 Maverick	0	0	0
Qwen 3.7 Flash	1	0	1
Kimi K2	0	0	0
GLM 4.7 FlashX	0	0	0
MiniMax M2.5	0	0	0
GPT-6 Luna	1	0	1
Muse Glimmer 30B	0	0	0

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct3 labels1

Paraphrase1 label1

Comparative3 labels1not counted in share

Budget-constrained2 labels2

Scale-constrained2 labelsNone

Negative5 labels1not counted in share

First choiceAlternativeMentionNegative16 labels in all, every segment counted; 4 of the 6 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“I recommend a hardware-agnostic EVPN-VXLAN fabric managed by a solution like Arista CloudVision or Juniper Apstra” Qwen 3.7 Flash · Data center networking · paraphrase prompt · first choice

“for a greenfield, mid-market data center, I'd start with Arista EOS and evaluate CloudVision as the management layer.” GPT-6 Luna · Data center networking · direct prompt · first choice

“Arista for cloud scale... "gold standard" for cloud; outperforms in hyperscale” Grok 4.1 Fast · Data center networking · comparative prompt · first choice

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

No model argued against it.

Named alongside

The products named in the same answers as Arista EOS, over the 16 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Arista EOS was named but was not.

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ProductSame answerTook the first choice insteadHead to head

Cisco Nexus9 of 161Not among the top eight

VMware NSX4 of 160Not among the top eight

Cisco ACI3 of 160Not among the top eight

Cumulus Linux3 of 160Not among the top eight

Juniper Apstra3 of 160Not among the top eight

Juniper Networks3 of 160Not among the top eight

Apstra2 of 160Not among the top eight

Cisco Application Centric Infrastructure2 of 160Not among the top eight

Juniper Junos2 of 160Not among the top eight

Juniper QFX2 of 160Not among the top eight

A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Arista EOS. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 15 of the 16 answers that named Arista EOS and are not a share of its labels.

Domains cited

cisco.com8

juniper.net8

arista.comYour site6

g2.com4

hpe.com4

linkedin.com4

cloudnuro.ai3

datamation.com3

dell.com3

fibermall.com3

Forty of the forty-six domain citations in answers naming Arista EOS came from somebody else's page.

Pages cited

cloudnuro.ai/blog/top-10-data-center-networking-solutions-for-robust-it-infrastructure-2023

datamation.com/networks/top-enterprise-networking-companies3

g2.com/categories/data-center-networking/enterprise3

v2cloud.com/blog/software-defined-networking-solutions3

arista.com/en/products/eos2

b2bsalescafe.wordpress.com/wp-content/uploads/2019/09/gartner-magic-quadrant-for-data-cent2

fibermall.com/blog/datacenter-switch.htm2

gartner.com/reviews/market/data-center-switching2

Pages are listed as the models cited them.

Search and answers

arista.com is not in Google's top ten for any of the category's searches. In the answers, Arista EOS takes 5% of first choices and Arista Networks takes 27%.

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In search

Google, US estimates

Position for “data center switching platform”

–

not in the top ten

Position for “data center networking platforms”

–

not in the top ten

Searches for its name, Google: not counted (“arista eos”)
AI search demand for its name, est.: 4 a month
Organic visits to its site: about 46,898 a month
Searches its site ranks for: 2,979 · 542 in the top three
Sites linking to it: 10,259
Paid Google search: No ads found in the estimate; that does not mean it runs none

Ads on GoogleDetailLess

5 ads · 4 text, 1 image · 3 shown in the last 30 days

First shown October 2022, as Arista Networks, Inc., verified. Ads started 2025-11 to 2026-10: 3 in the year, 2 before.

On Google's pages: 1 2 3 4

In answers

This edition

Share of first choices

rank 5 of 165 in data center networking

Segment leader

27%

Arista Networks

First choices: 4 across its categories
Named in: 16 answers
Its own site cited: in 15 of the answers that named it

Search figures are US estimates from DataForSEO, read October 5, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.

What it publishes

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Addresses on arista.com

1,655

subdomains included

Content

492

counted in the table below

Documentation

Product · Integration

18 · 0

Kind	Pages	Last 90 days	Latest	Categories named
Blog	254	undated		SD-WAN, APM
News or press	132	undated		SD-WAN, Firewalls
Case study	79	0	2019-11-21
Webinar or virtual event	13	0	2019-11-15	SD-WAN
Report or ebook	9	0	2021-01-12	SD-WAN
Comparison	2	undated
Glossary or explainer	2	undated
Conference or event	1	undated

Most recent

2021-01-12E books and guides report or ebook
2019-12-11Cybersecurity audit e book hp graphic report or ebook
2019-11-21Video case study greenbeanit case study
2019-11-21Video case study greenbeanit large case study
2019-11-15December 5 webinar graphic webinar or virtual event
2019-11-11Sd wan webinar hp graphic webinar or virtual event

How it is countedHide how it is counted

Every page arista.com exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. Of its titles that name a category, most name SD-WAN (14); 0 name the category the models place it in. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read September 29, 2026.

Names read as Arista EOS

What the judge wrote, as written, with how often. The vendor table decides that these count as Arista EOS; a claim can dispute any of them.

Arista EOS (Extensible Operating System) 1

Follow Arista EOS

An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.

Already following? Everything you follow, with a stop for each.

The company

Arista EOS is its own company.

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In its own words

Stated by the vendor, not checked

Positioning: the core of Arista cloud networking solutions for next-generation data centers and cloud networks
arista.com
Not stated on the pages read: Who it is for, price, starting price, free plan or trial, integrations, certifications, hosting, customers

What Arista EOS's own pages state, read October 5, 2026: arista.com, trust.arista.com. A claimed page can correct any of them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Arista EOS's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Arista EOS, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

What a new claim receivesHide what a new claim receives

A new claim receives the current edition's vendor brief for Arista EOS by email, built from the raw record of the edition. It shows:

where Arista EOS is named, by buyer and by framing, and which cells hold its first choices;
the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
its vocabulary against the segment leader's, and the pages the models cited;
who was chosen in the answers that did not name Arista EOS, and every reason the record gives;
a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
one page of published figures cleared to show a buyer.