DHCP Relay Reporting of Zero-Touch Provisioning Failures

The patent implements feedback by embedding ZTP failure information into DHCP messages. When a network element experiences a ZTP failure, it includes failure details (such as failure type, timestamp, and diagnostic data) in DHCP packets sent to the DHCP server or relay agent. This feedback mechanism allows the network management system to receive real-time failure information without requiring changes to the fundamental DHCP protocol structure, thereby reducing troubleshooting time while maintaining protocol simplicity.

The patent uses the DHCP server or relay agent as an intermediary to collect and forward failure information. Instead of requiring direct reporting from network elements to network management systems, the DHCP infrastructure acts as a mediator that passively receives failure information embedded in DHCP messages and forwards it to appropriate management systems. This approach maintains protocol simplicity while enabling comprehensive failure reporting.

The patent embeds failure information within existing DHCP message structures by nesting failure data inside standard DHCP message fields. Specifically, failure information is placed within the DHCP message body as nested data elements that do not disrupt the overall message structure. This nesting approach allows failure reporting while maintaining backward compatibility and minimizing increases in message structure complexity.

The patent enables DHCP messages to serve multiple functions: traditional IP address assignment and configuration, plus failure information reporting. By designing the message structure to accommodate both standard DHCP operations and failure reporting in a unified framework, the patent avoids creating separate complex reporting protocols. The same DHCP message infrastructure handles both provisioning and diagnostics, reducing overall system complexity.