Summary of root-cause problems, exceptions, and events

IP Availability Manager
diagnoses root-cause problems and detects (computes) events from status changes gathered from or issued by devices in the managed environment. It uses the events as symptoms to diagnose root-cause problems.
Events used as symptoms to diagnose a failure can also be perceived as impacts resulting from the failure.
  • IP Availability Manager
    also generates exceptions, or aggregate events, where an exception is a collection of problems or events associated with a particular managed system, IPv6Network, or VLAN.
    IP Availability Manager
    generates an exception whenever any of the composite problems or events for the system, IPv6Network, or VLAN occur. For example,
    IP Availability Manager
    will generate an exception for a router when a card on the router has a problem or the router is down.
    The
    Global Manager
    imports all problems diagnosed by
    IP Availability Manager
    and certain key events detected by
    IP Availability Manager
    . It also imports the IPv6Network inaccessible exception. The problem notifications (one problem per notification), notifications (one event per notification), and IPv6Network exception notifications (one exception per notification) are displayed in the
    Global Console
    .
  • IP Performance Manager
    generates exceptions, detects performance faults, and detects events. It uses the performance faults to generate exceptions.
    A performance fault is an abnormal condition that occurs when a component of a managed system, Chassis, or VLAN exceeds a threshold. An exception, or aggregate event, is a collection of performance faults associated with a particular managed system, Chassis, or VLAN.
    IP Performance Manager
    generates an exception whenever any of the composite faults for the managed system, Chassis, or VLAN occur. For example,
    IP Performance Manager
    will generate a ResourceException whenever a router has exhausted most of its processor or memory resources.
    The
    Global Manager
    imports all faults and events detected by
    IP Performance Manager
    . The fault notifications (one fault per notification) and the event notifications (one event per notification) are displayed in the
    Global Console
    .