Good network documentation lets an authorized person understand the environment during an outage or change. It should be accurate enough to act on and simple enough to maintain.
Keep an equipment and service inventory
Record gateways, switches, access points, controllers, circuits, and relevant power equipment. Include model, serial number, location, support status, management method, and owner. Label the physical equipment and cable ends consistently with the records.
Document the connections
- Internet provider, circuit reference, handoff location, and support contact.
- A physical diagram showing the important uplinks and locations.
- A logical diagram showing VLANs, subnets, and approved traffic relationships.
- Wi-Fi networks, intended user groups, and access ownership.
- Critical dependencies such as DNS, VPNs, phones, cameras, and remote sites.
Store passwords, private keys, and recovery codes in an approved secure vault, not in a broadly shared diagram. Documentation can reference the vault item and authorized owner without exposing the secret.
Add the operational details
Include monitoring ownership, maintenance windows, configuration-backup locations, rollback instructions, and vendor escalation paths. Record an emergency contact method that remains usable when the network is unavailable.
Maintain it as part of the work
Update the record whenever equipment, circuits, access, or configuration changes. Date the diagrams and identify who reviewed them. Periodically compare the documentation with the actual environment. An accurate small diagram and inventory are more useful than a detailed document that no longer describes the site.
Get help with your network
For an existing service issue, open an AvrinTech support ticket. For an assessment or planned improvement, request a scoped proposal and review our networking services. Work, coverage, and response targets depend on your agreement.
