The 9920 EMS Message Catalog for version 21.2.2.0 provides
comprehensive documentation of error messages, underlying causes, corrective actions, and
potential impacts across microservices and system components within the Extreme 9920 platform.
It covers key services such as the Chassis Management Microservice, Interface Manager
Microservice, API Gateway, CLI, and Security Microservices. Each microservice is mapped to
specific error codes, detailing issues like failed database connections, hardware pipeline
malfunctions, and microservice initialization failures. The guide offers technical resolutions
including service restarts, system status checks, and escalation procedures to Extreme Networks
support for more complex errors, enabling precise diagnostics and streamlined resolution
processes for administrators managing the 9920 platform.
