# Data center networking for enterprise buyers: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "data center switching platform" and as "data center network fabric", six framings each, to fourteen models with search on, on behalf of an enterprise B2B company. Added to the November 2026 Edition. Page: https://www.gane.ai/index/it/network/data-center-networking/enterprise

**Standing:** Arista Networks leads with 52% of first choices; verdict clear leader. 48 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Arista Networks](https://www.gane.ai/index/it/vendors/arista-networks/index.md) | 52% | 7% | 45 |
| 2 | [Cisco Nexus](https://www.gane.ai/index/it/vendors/cisco-nexus/index.md) | 19% | 19% | 54 |
| 3 | [Juniper Networks](https://www.gane.ai/index/it/vendors/juniper-networks/index.md) | 4% | 18% | 38 |
| 4 | [HPE Aruba CX Series](https://www.gane.ai/index/it/vendors/hpe-aruba-cx-series/index.md) | 4% | 20% | 15 |
| 13 | [NVIDIA Spectrum-X](https://www.gane.ai/index/it/vendors/nvidia-spectrum-x/index.md) | 0% | 11% | 18 |
| 14 | [HPE](https://www.gane.ai/index/it/vendors/hpe/index.md) | 0% | 14% | 14 |
| 15 | [Dell PowerSwitch](https://www.gane.ai/index/it/vendors/dell-powerswitch/index.md) | 0% | 21% | 19 |
| 20 | [SONiC](https://www.gane.ai/index/it/vendors/sonic/index.md) | 0% | 36% | 11 |
| 123 | [Cisco ACI](https://www.gane.ai/index/it/vendors/cisco-aci/index.md) | 0% | 56% | 18 |
| 124 | [VMware NSX](https://www.gane.ai/index/it/vendors/vmware-nsx/index.md) | 0% | 69% | 16 |

Rank is by share of first choices among all 124 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Cisco Nexus; alternatives Arista Networks, HPE Aruba CX Series
- GPT-5.4 mini: Cisco Nexus; alternatives Arista Networks, Juniper Networks
- Gemini 3.5 Flash: Arista Networks; alternatives Cisco Nexus, Juniper Networks, NVIDIA Networking
- Perplexity Sonar: Arista Networks; alternatives Cisco Nexus, HPE Juniper Networking Apstra, Nokia SR Linux + EDA
- Grok 4.20: Arista Networks; alternatives Cisco Nexus
- Mistral Small: Arista Networks, Cisco Nexus; alternatives Juniper Networks, Nokia Data Center Fabric
- DeepSeek V4 Flash: Arista Networks; alternatives Cisco Nexus, Juniper Networks
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Arista Networks, Cisco Nexus, Juniper Networks; alternatives Mellanox, NVIDIA Spectrum-X
- Kimi K2: Arista Networks; alternatives Cisco Nexus, Dell PowerSwitch, HPE Aruba CX Series, Juniper Networks
- GLM 4.7 FlashX: Arista Networks, Cisco Nexus; alternatives Dell PowerSwitch, H3C, HPE, Huawei Data Center Networking
- MiniMax M2.5: Cisco Nexus; alternatives Arista Networks, Dell PowerSwitch, HPE Aruba CX Series
- GPT-6 Luna: Arista EOS + CloudVision; alternatives Apstra, Cisco ACI, Cisco Nexus, Juniper QFX
- Muse Glimmer 30B: Arista Networks; alternatives Cisco Nexus, Juniper Networks

## Sources the answers cite

69 of 84 answers came back with a source list, from 13 of 14 models. Sites named in the most answers:

- juniper.net: 36 answers, 68 citations
- hpe.com: 31 answers, 45 citations
- cisco.com: 30 answers, 61 citations
- arista.com: 27 answers, 48 citations
- gane.ai/index: 24 answers, 24 citations
- reddit.com: 16 answers, 28 citations
- linkedin.com: 16 answers, 21 citations
- nokia.com: 16 answers, 20 citations

Pages named in the most answers:

- https://gane.ai/index/it/network/data-center-networking/enterprise (22 answers)
- https://juniper.net/us/en/products/data-center-networking.html (16 answers)
- https://noxtel.mx/data-center-network-switch-cisco-nexus-vs-arista-vs-juniper-head-to-head (15 answers)
- https://technologymatch.com/blog/cisco-vs-aruba-vs-arista-which-network-infrastructure-vendor-should-it-leaders-choose (10 answers)
- https://gartner.com/en/documents/6308415 (9 answers)
- https://guideflow.com/blog/data-center-networking (9 answers)
- https://hpe.com/us/en/products/networking/data-center.html (9 answers)
- https://reddit.com/r/networking/comments/194xev4/data_center_switching (9 answers)
- https://arista.com/en/products (8 answers)
- https://juniper.net/assets/us/en/local/pdf/additional-resources/1600074-en.pdf (7 answers)

## Warned against

- Cisco ACI: 10 of 18 labels negative. "Platforms/Approaches to Avoid (High Risk for Large-Scale Deployments): Proprietary "Walled Garden" SDN Overlays like Cisco ACI or VMware NSX"" (Muse Glimmer 30B, negative prompt)
- VMware NSX: 11 of 16 labels negative. "Platforms/Approaches to Avoid (High Risk for Large-Scale Deployments): Proprietary "Walled Garden" SDN Overlays like Cisco ACI or VMware NSX""" (Muse Glimmer 30B, negative prompt)
- Cisco Nexus: 10 of 54 labels negative. "Why to Avoid: This chassis is functionally obsolete... this should be strictly avoided" (Qwen 3.7 Flash, negative prompt)
- Juniper Networks: 7 of 38 labels negative. "Don't go for Juniper right now, it's unclear how this whole HPE thing plays out." (Kimi K2, negative prompt)

## Movement since October 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: Arista Networks at 52%.

- Arista Networks: 34% to 52%, +18. Cleared the floor by 7 points · rank 1 of 124, unchanged.
- Juniper Networks: 11% to 4%, −7. Inside the floor by 4 points · rank 3 of 124, unchanged.
- Cisco Nexus: 25% to 19%, −6. Inside the floor by 5 points · rank 2 of 124, unchanged.
- HPE Aruba CX Series: 0% to 4%, +4. Inside the floor by 7 points · rank 17 → 4 of 124.
- Dell PowerSwitch: 2% to 0%, −2. Inside the floor by 9 points · rank 5 → 15 of 124.
- Juniper Apstra: 2% to 0%, −2. Inside the floor by 9 points · rank 6 → 18 of 124.
- SONiC: 2% to 0%, −2. Inside the floor by 9 points · rank 15 → 20 of 124.
- Cisco ACI: 2% to 0%, −2. Inside the floor by 9 points · rank 14 → 123 of 124.
- NVIDIA Spectrum-X: 0% to 0%, ±0. Inside the floor by 11 points · rank 29 → 13 of 124.
- HPE: 0% to 0%, ±0. Inside the floor by 11 points · rank 19 → 14 of 124.
- VMware NSX: 0% to 0%, ±0. Inside the floor by 11 points · rank 111 → 124 of 124.

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/it.