IS-IS impact analysis examples

The examples that follow show how
uses the relationships between the IS-IS objects and the underlying physical-transport objects to perform IS-IS impact analysis. In addition, the examples show how the
Global Manager
picks up where
leaves off to perform global impact analysis.
Keep the following information in mind when reading these examples:
  • A router has multiple physical interfaces.
  • A physical interface may have multiple IS-IS interfaces.
  • An IS-IS interface has one and only one IS-IS neighbor endpoint.
  • An IS-IS neighbor endpoint may have multiple IS-IS adjacencies.