Impact notification

In order to facilitate cross-domain correlation with SONET/SDH, the Optical Transport Manager for WDM identifies which end-to-end TopologicalLink objects have lost service due to a root-cause problem. These TopologicalLink objects will correspond to links in the SONET/SDH model where WDM is being used as a transport. Cross-domain correlation is explained more fully in “Cross-domain correlation” on page 88.

A Down notification is created on a TopologicalLink when any of the ClientTrail objects that the ToplogicalLink is LayeredOver are marked Down.