Root-cause analysis

Root-cause problems for SDN classes and Root-cause problems for NSX-T classes table lists the root-cause problem diagnosed and the impacted classes.
Root-cause problems for NSX-V classes
Class
Root-cause
Events (symptoms) of root cause
Impacted class
Events
ControllerNode
Down
ControllerDown
ControlCluster
ReducedRedundancy
Down
AtRisk
APIServerDown
APIServerMightBeDown
ControlCluster
ReducedRedundancy
Down
AtRisk
EdgeGateway
Unresponsive
UnresponsiveSymptom
No impacted classes.
No events.
Hypervisor
Down
HypervisorPowerOff
VirtualMachine
MightBeUnreachable
VMLostConnection
Unreachable
IP
Unresponsive
Tunnel
Disconnected
Hypervisor
HostLostConnectionToAtLeastOneDatastore
HostLostConnection
Disconnected
MightBeDisconnected
No impacted classes.
No events.
ShutDown
HostShutdown
VirtualMachine
MightBeUnreachable
VMLostConnection
Unreachable
IP
Unresponsive
Tunnel
Disconnected
LogicalPort
Down
LinkDown
VirtualMachine
PoweredOff
GuestOSNotRunning
Unreachable
MightBeUnreachable
Disabled
AdminDown
VirtualMachine
PoweredOff
GuestOSNotRunning
Unreachable
MightBeUnreachable
LogicalRouter
Unresponsive
UnresponsiveSymptom
No impacted classes.
No events.
VirtualMachine
PoweredOff
PoweredOffE
LogicalRouter
AtRisk
Unresponsive
EdgeGateway
AtRisk
Unresponsive
Unreachable
MightBeUnreachable
No impacted classes.
No events.
Root-cause problems for NSX-T classes
Class
Root-cause
Events (symptoms) of root cause
Impacted class
Events
Host
Down
ESX host Down hosting Edge Node
EdgeCluster
ReducedRedundancy
AllComponentsDown
AtRisk
ExternalTrafficImpaired
EdgeNode
Down
VIrtualMachine
DownOrImpaired
Hypervisor
Down
Tunnel
Down
Disconnected
TransportNode
Down
LogicalRouter
LogicalRouterDown
Host
Down
ESX host Down hosting compute VMs
VIrtualMachine
DownOrImpaired /
Hypervisor
Down
Tunnel
Down
Disconnected
TransportNode
Down
VmKernelPort
IfLostConnection
Interface
Down
ESX host Interface DOWN (Carrying Tunnel Traffic)
VirtualMachine
DownOrImpaired
Tunnel
Down/TunnelTrafficImpaired
Disconnected
TransportNode
Down
VmKernelPort
IfLostConnection/IfDown
Tenant
EastWestTrafficImpaired
This event is generated only when VIO and NSX-T both discovered.
LogicalSwitch
ConnectivityImpaired
Cable
Down
Cable (Connected to Compute Hypervisor Host) carrying tunnel traffic DOWN
VirtualMachine
DownOrImpaired
Tunnel
Down/TunnelTrafficImpaired
Disconnected
TransportNode
Down
VmKernelPort
IfLostConnection/IfDown
Tenant
EastWestTrafficImpaired
This event is generated only when VIO and NSX-T both discovered.
LogicalSwitch
ConnectivityImpaired
Interface
Down
ESX host hosting Edge Nodes Interface DOWN (Carrying External/Tunnel Traffic)
VirtualMachine
DownOrImpaired
Tunnel
Down
Disconnected
TransportNode
Down
VmKernelPort
IfLostConnection/IfDown
Tenant
EastWestTrafficImpaired
This event is generated only when VIO and NSX-T both discovered.
LogicalSwitch
ConnectivityImpaired
EdgeNode
Down
EdgeCluster
ExternalTrafficDown/ ExternalTrafficImpaired/TunnelTrafficDown
Cable
Down
Cable(Connected to Edge HypervisorHost) carrying tunnel/External traffic DOWN
VirtualMachine
DownOrImpaired
Tunnel
Down
Disconnected
TransportNode
Down
VmKernelPort
IfLostConnection/IfDown
Tenant
EastWestTrafficImpaired
This event is generated only when VIO and NSX-T both discovered.
LogicalSwitch
ConnectivityImpaired
EdgeNode
Down
EdgeCluster
ExternalTrafficDown/ ExternalTrafficImpaired/TunnelTrafficDown
Switch
Down
Switch (Directly connected to Compute Hypervisor) Down
VirtualMachine
DownOrImpaired
VmKernelPort
IfLostConnection/IfDown
Tunnel
Down
Disconnected
Tenant
EastWestTrafficImpaired
This event is generated only when VIO and NSX-T both discovered.
LogicalSwitch
ConnectivityImpaired
Switch
Down
Switch (Directly connected to Edge Hypervisor) Down
VirtualMachine
DownOrImpaired
LogicalRouter
LogicalRouterDown
Host (compute VM)
Unresponsive
EdgeNode
Down
EdgeCluster
AllComponentsDown/ExternalTrafficDown/ ExternalTrafficImpaired/TunnelTrafficDown
TrunkCable
Down
Trunk cable Carrying tunnel Traffic Down
Tunnel
Down
Disconnected
LogicalSwitch
ConnectivityImpaired
Host
Down
ESX host DOWN hosting NSX-T manager
NSXManager
Unreachable
VirtualMachine
DownOrImpaired
Hypervisor
Down
VIrtualMachine
Down
VirtualMachine hosting Edge is Down
LogicalRouter
LogicalRouterDown
EdgeNode
Down
Tunnel
Disconnected, Down
VIrtualMachine
PoweredOff
VirtualMachine hosting ControllerNode is PoweredOff
ControllerNode
Down
ControllerCluster
ReducedRedundancy
AllComponentsDown
AtRisk