Root-cause problems

Root-cause problems diagnosed by Network Protocol Manager for IS-IS lists the root-cause problems that are diagnosed by Network Protocol Manager for IS-IS. For each problem, Table 7 identifies the managed object for which the problem is diagnosed, the condition for the problem, and the events that are correlated by Network Protocol Manager for IS-IS to diagnose the problem.

Table 1. Root-cause problems diagnosed by Network Protocol Manager for IS-IS

Managed object	Root cause	Condition	Events (symptoms) of root cause 1
1**Interpret event entries as <object name>::<event name>.
ISISNetwork	AreaIDMismatch	Misconfiguration symptoms exist on this IS-IS network.	ISISNetwork::AreaIDMismatchSymptom
			ISISAdjacency::NeighborStateAlarm
	DuplicateSystemID	Misconfiguration symptoms exist on this IS-IS network.	ISISNetwork::DuplicateSystemIDSymptom
			ISISAdjacency::NeighborStateAlarm
	HelloIntervalMismatch	Misconfiguration symptoms exist on this IS-IS network.	ISISNetwork::HelloIntervalMismatchSymptom
			ISISAdjacency::NeighborStateAlarm
	MTUMismatch	Misconfiguration symptoms exist on this IS-IS network.	ISISInterface::MTUMismatchSymptom
			ISISAdjacency::NeighborStateAlarm
	NetmaskMismatch	Misconfiguration symptoms exist on this IS-IS network.	ISISInterface::NetmaskMismatchSymptom
			ISISAdjacency::NeighborStateAlarm
ISISInterface	Disabled	This interface or its associated physical interface is administratively down (manually disabled), and at least one IS-IS adjacency on this interface is reporting an improper state.	ISISInterface::DisabledAdminSymptom
	Down	This interface is operationally down when two or more IS-IS adjacencies exist on this interface and all of them are down.	ISISAdjacency::NeighborStateAlarm All IS-IS adjacencies associated with this interface have NeighborStateAlarms.
ISISAdjacency	Down	This IS-IS link between neighboring endpoints is down.	ISISAdjacency::NeighborStateAlarm