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Solutions · Zero Trust

Reduce Firewall Spend

For Security AdminsFor CTO / IT Directors

Arista Multi-domain Segmentation Services (MSS) implements zero-trust microsegmentation in the switching fabric you already own. Contain lateral movement, align to the CISA Zero Trust Maturity Model, and avoid stacking firewalls between every segment.

Wire-speed distributed enforcement at the switch ASIC
Source: Arista MSS Solution Brief
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Arista Multi-domain Segmentation Services
The Challenge

The traditional perimeter has collapsed

Hybrid workforces, IoT and OT proliferation, and distributed cloud applications have erased the network boundary. The defining damage in a modern breach is lateral movement — and stacking firewalls between every segment is expensive, brittle, and slow to change. Zero trust requires "never trust, always verify" applied continuously, not just at the edge.

The Solution

Zero trust enforced in the fabric you already own

MSS aligns with the CISA Zero Trust Maturity Model and runs on the same EOS switches forwarding production traffic.

Identity-aware microperimeters

Policy attaches to user, device, and application identity — not to a static IP range. Policies follow the workload across the fabric.

Trust nothing by default

Allow-list only what's explicitly trusted. Lateral movement is contained at the access layer instead of after a perimeter is breached.

Continuous verification

Policy violations and trust changes are reflected in the fabric in real time, with full visibility into what was attempted and what was blocked.

No forklift, no proprietary hardware

MSS runs on EOS switches you already deploy. Reduce firewall sprawl, jumpstart zero-trust initiatives, and avoid net-new appliance budgets.
Pre-sales support

Map your zero-trust rollout

Identify quick-win segmentation policies, model firewall reduction scenarios, and stage a phased rollout with our specialists.

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Featured Products

Platforms that deliver MSS-ready segmentation

CloudVision

Why it cuts firewall spend: Authors and distributes MSS policy from one place to the entire EOS fleet. Policy changes that used to require a firewall ticket queue happen in seconds — and you keep the audit trail security needs for compliance.
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Edge Threat Management

Why it cuts firewall spend: Pushes detection-and-response to the campus/branch edge so you don't backhaul every flow to a central firewall just to inspect it. Same policy model as MSS — one mental model across DC and edge.
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NG Firewall

Why it cuts firewall spend: Stays at the perimeter where deep packet inspection is actually needed. With MSS handling east-west, the perimeter firewall can be sized for north-south traffic only — not the entire interior.
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7280R3 Series

Why it cuts firewall spend: MSS runs as a feature on switches you already deploy at the data center boundary. Wire-speed policy enforcement at 100G — no separate firewall cluster to license, license-stack, and refresh.
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7300X3 Spline

Why it cuts firewall spend: Modular spine with the table sizes for thousands of microsegments — without buying purpose-built segmentation hardware. Same chassis you'd already pick for capacity also enforces zero trust.
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7050X3 Series

Why it cuts firewall spend: ToR platform that enforces identity-aware microperimeters as close to the workload as possible. Catch lateral movement at the first hop instead of after it crosses three segments.
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Download the brief

Architecture, policy model, and zero-trust alignment details.

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