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Securing the Foundation of Every Critical Network

Mahlet’s L1FEguard delivers real-time Layer 1 visibility and monitoring for optical networks in critical industries – creating true Full-Stack Network Visibility solutions that power performance, resilience, reliability, and security from the ground up.

If you can’t see it, you can’t: secure it – fix it – optimize it.

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Macro close up of secure data cables with copy space concept as A macro close up of secure data cables connected to a high tech device highlighting the physical layer of data security in a futuristic

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Layer 1 Infrastructure

Enabling you to continuously monitor live optical signal power levels, link utilization, framing issues, and pre-FEC BER. Teams instantly detect gradual signal degradation, hardware issues, or environmental stressors before they become outages.

Layer 1 Optical Protocols

Real-time monitoring of fiber optic protocols like OTN and SDH/SONET illuminates hidden network traffic and reveals vulnerabilities that completely bypass higher-layer security tools – including unauthorized management access, covert C2/exfiltration channels, and encryption subversion.

Layer 1 Ethernet PCS

Real-time monitoring of Ethernet’s Physical Coding Sublayer (PCS) reveals framing errors, code violations, and pre-FEC BER at the hand-off – delivering early warning of link and hardware degradation while exposing covert vulnerabilities that completely bypass traditional tools miss entirely.

$300k

Per-Hour Cost of Network Downtime

181

Days to Detect a Breach

33%

Fail to Determine Root Cause of a Breach

Average hours to Detect & Repair a Fiber Outage

Seamless Integration

L1FEguard integrates directly into your existing visibility and security architecture. It feeds Layer 1 data – raw signal telemetry, optical protocols, management & tunneled traffic, and Ethernet PCS monitoring – straight into your current packet brokers and NPM, SIEM, NDR, and XDR tools.

This gives your NetOps and SecOps teams true Full-Stack Network Visibility from the optical foundation up – empowering faster troubleshooting, earlier and deeper threat detection, stronger resilience, better performance, and real Zero-Trust security.

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What Full-Stack Network Visibility Unlocks

Performance & Optimization

Full-Stack Network Visibility reveals signal degradation, pre-FEC BER trends, and PCS errors before they impact your mission. These insights enable proactive link optimization and prevent performance problems before they occur.

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Security & Compliance

Full-Stack Network Visibility exposes covert C2 channels, unauthorized network management access, and protocol anomalies that bypass all traditional firewalls and NDR tools, delivering true Zero-Trust visibility from the optical foundation up.

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Resilience & Reliability

When issues do arise at any layer, Full-Stack Network Visibility enables instant correlation of Layer 1 telemetry and OTN overhead with higher-layer data to identify root causes and resolve them faster, dramatically reducing MTTD, MTTI, and MTTR.

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Start Leveraging & Protecting
Your Entire Protocol Stack

Performance | Resilience | Reliability | Security

Securing the Foundation of Every Critical Network

Trusted By

Layer 1 Infrastructure

Layer 1 Optical Protocols

Layer 1 Ethernet PCS

Seamless Integration

What Full-Stack Network Visibility Unlocks

Performance & Optimization

Security & Compliance

Resilience & Reliability

Start Leveraging & Protecting
Your Entire Protocol Stack

Book A Demo

Company

Connect

Securing the Foundation of Every Critical Network

Trusted By

Layer 1 Infrastructure

Layer 1 Optical Protocols

Layer 1 Ethernet PCS

Seamless Integration

What Full-Stack Network Visibility Unlocks

Start Leveraging & Protecting Your Entire Protocol Stack

Book A Demo

Company

Connect

Start Leveraging & Protecting
Your Entire Protocol Stack