docs: add comprehensive priority vendors analysis for LibreNMS parity
Document detailed sensor coverage comparison between Towerops and LibreNMS for
priority vendors (MikroTik, Ubiquiti platforms).
Executive Summary:
- MikroTik RouterOS: 65-70% parity, 0% wireless coverage (CRITICAL GAP)
- Ubiquiti AirFiber AF60: 35% parity, missing MCS rate sensors (CRITICAL)
- Ubiquiti AirFiber AF-LTU: 40% parity, missing modulation rate (CRITICAL)
- Ubiquiti AirOS: 95% parity (excellent)
- Ubiquiti UniFi: 80% parity (good)
- Ubiquiti EdgeOS/EdgeOLT: 80-95% parity (Towerops advantage)
Implementation Priority (4 tiers):
- TIER 1 - CRITICAL (2-4 hours): AF60/AF-LTU MCS/modulation state sensors ✅ COMPLETE
- TIER 2 - HIGH (4-6 hours): RSSI, SNR, wireless metrics for AirFiber
- TIER 3 - MEDIUM (6-8 hours): UniFi frequency conversion, optical power
- TIER 4 - LARGE (12-16 hours): MikroTik wireless discovery (11 sensor types)
Source: LibreNMS OS modules and state sensor PHP discovery files
Files: docs/librenms-audit/PRIORITY-VENDORS-ANALYSIS.md