L1FEguard delivers primary-source telemetry, protocol monitoring, and hardware-level awareness from the physical layer your entire visibility and security stack sits on but has never been able to see.
L1FEguard is Mahlet’s Communications Infrastructure Intelligence platform for fiber optic networks – a purpose-built appliance that makes the physical infrastructure layer visible for the first time. It installs passively in parallel with your existing infrastructure, generates no added latency, and requires no changes to your current architecture.
L1FEguard doesn’t replace your SIEM, NDR, or XDR. It anchors them with primary-source data streams and alerts from the foundational layer beneath every tool you already own, giving your teams the ground truth their entire stack has been built on but was never able to see.
L1FEguard installs in parallel with your optical infrastructure, passively monitoring OTN, SDH/SONET, and bulk Ethernet signals in real time – zero added latency, zero network risk, zero rip-and-replace.
Monitors the physical layer that every higher-layer tool depends on – delivering optical signal telemetry, protocol overhead analysis, management channel visibility, and hardware health awareness that no other platform can produce.
Feeds your existing packet brokers, SIEM, XDR, NDR, and MDR tools with telemetry, traffic summaries, and anomaly alerts. Triggered raw signal snapshots support forensic analysis and incident response.
