Root Cause Analysis

This section provides information on the root cause and the impact analysis for newly introduced classes on top of existing ones in the IP Availability and the Performance Manager.

The table Events Introduced for vRAN Assurance describe classes, events, and the impacted systems.

Table 1. Events Introduced for vRAN Assurance

Class	Root Cause	Events	Impacted Systems
KubernetesPod	Down	Failed	Container
			NetworkFunction
			KubernetesPod
			CUCP
			CUUP
			DU
KubernetesWorker	Down	Failed	Container
		NodeUnResponsive	KubernetesPod
			KubernetesWorker
			CUCP
			CUUP
			DU
			NetworkFunction
			KubernetesService
Container	Down	Failed	NetworkFunction
			Container
			KubernetesPod
			KubernetesService
			CUCP
			CUUP
			DU
KubernetesMaster	Down	NodeUnResponsive	KubernetesWorker
			Container
			KubernetesPod
			KubernetesService
			NetworkFunction
			CUCP
			CUUP
			DU
VirtualMachine	PoweredOff/Down	Failed	Container
		Impaired
		NodeUnResponsive	KubernetesPod
		HostShutdown	KubernetesWorker
			KubernetesMaster
			KubernetesService
			VirtualMachine
			NetworkFunction
			Host
			CUCP
			CUUP
			DU
Hypervisor	ShutDown/Down	Failed	Container
		Impaired
		NodeUnResponsive	KubernetesPod
		HostShutdown	KubernetesWorker
		DownOrImpaired	VirtualMachine
			Hypervisor
			KubernetesMaster
			KubernetesService
			NetworkFunction
			CUCP
			CUUP
			DU
Port	Disabled/Down	Failed	Container
		Impaired
		NodeUnResponsive	KubernetesPod
			KubernetesWorker
		Host UnResponsive	VirtualMachine
			KubernetesMaster
			KubernetesPod
			KubernetesService
			NetworkFunction
			CUCP
			CUUP
			DU
EdgeNode	Down	NetworkTrafficAffected	NetworkFunction
		AllComponentsDown	EdgeCluster
		MightBeDown	EdgeNode
			CUCP
			CUUP
			DU