Build a NOC Around Exceptions, Not Wallboard Noise
A practical operating model for turning telemetry into owned, prioritized network work.
ISP Operator Library
Field notes for people who run networks
Original, practical writing about subscriber operations, access networks, billing systems and the decisions behind a reliable ISP.
Latest notesEvidence, configurations and operating decisions
Make OLT and ONU Inventory Agree with the Fiber Plant
An operational model for keeping OLT configuration, ONU identity, subscriber ownership and outside-plant records synchronized.
Troubleshoot an ONU from Evidence, Not One Signal Number
A field workflow for separating optical loss, registration, Ethernet, power and service-policy faults before dispatching a technician.
Design PPPoE Around Failure Domains
A RouterOS PPPoE design guide focused on MTU, discovery boundaries, AAA dependency and safe rollout rather than a paste-and-hope configuration.
Build RADIUS Accounting You Can Reconcile
How to turn Start, Interim and Stop packets into reliable session evidence without mistaking counters for a financial ledger.
Migrate an ISP Billing Platform Without Losing the Audit Trail
A cutover runbook for moving subscribers, balances, packages and network policy with measurable reconciliation and a real rollback point.
Design an ISP Billing System Around Boundaries, Not Features
A framework for separating money, service entitlement and network enforcement so billing automation stays auditable as an ISP grows.
Treat TR-069 Provisioning as a State Machine
A practical model for making ACS-driven CPE provisioning observable, repeatable and safe across mixed firmware and device fleets.
RADIUS Is Your ISP Control Plane, Not Just a Password Checker
A packet-level guide to designing RADIUS authentication, policy and accounting so subscriber access remains explainable when the network is under pressure.