Cisco Systems 3.6 specifications Correlation By Root Cause, Ticket

Chapter 1 Fault Management Overview

Basic Concepts and Terms

Figure 1-4 Flapping Event

Correlation By Root Cause

Root cause correlation is determined between alarms or event sequences. It represents a causal relationship between an alarm and the consequent alarms that occurred because of it.

For example, a card-out alarm can be the root cause of several link-down alarms, which in turn can be the root cause of multiple route-lost and device unreachable alarms, and so on. A consequent alarm can serve as the root cause of other consequent alarms.

Figure 1-5 Root Cause Correlation Hierarchy Example

Ticket

A ticket represents the complete alarm correlation tree of a specific fault scenario. It can be also identified by the topmost or “root of all roots” alarm. Both Cisco ANA NetworkVision and Cisco ANA EventVision display tickets and allow drilling down to view the consequent alarm hierarchy.

Cisco Active Network Abstraction Fault Management User Guide, Version 3.6 Service Pack 1

OL-14284-01 1-5