Page 360 - Handbook of Modern Telecommunications

Network Management and Administration 3-151

3.6.6.5 Resource Trouble Management Process
Resource Trouble Management is an essential part of the Assessment end-to-end process group.
Resource Trouble Management processes are responsible for the management of troubles with allo-
cated resources. The objectives of these processes are to report resource failures, isolate the root causes,
and act to resolve them.
Principal processes and functions are:

• Survey and Analyze Resource Trouble: This process takes care of the monitoring of resources
in real time by resource failure event analysis, alarm correlation, and filtering as well as failure
event detection and reporting. Responsibilities of these processes include, but are not limited to,
Resource failure event analysis, alarm correlation and filtering, and failure event detection and
reporting. The alarm correlation in particular aims at the matching of redundant, transient, or
implied events to a specific root cause event.
• Localize Resource Trouble: This process is responsible for finding the root cause of resource trou-
ble, which can be done using the following methods: verification of resource configuration for the
targeted service features, performing resource diagnostics, running resource tests, and schedul-
ing resource tests.
• Correct and Recover Resource Trouble: Failed resources are either restored or replaced by this
process. These processes are also responsible for isolating a unit with a fault and managing the
redundant resource units (e.g., hot standby). They will also report successful restoration or an
unsuccessful attempt at restoration to cooperating processes.
• Track and Manage Resource Trouble: This process monitors the progress of the repair activities in
the previous process.
• Report Resource Trouble: This process reports changes in resource troubles to other interested
processes (e.g., Service Trouble Management).
• Close Trouble Report: To close a trouble report, this process verifies the successful elimination of
the problem. This includes ensuring appropriate measures will be taken in order to prevent simi-
lar resource troubles from occurring in the future. It also includes interaction with the Resource
Trouble processes for reporting purposes.
Event and alarm correlation are core components, as well as integrated impact analysis.

3.6.6.6 Resource Performance Management Process
Resource Performance Management processes encompass monitoring, analyzing, controlling, and
reporting on the performance of resources. They work with basic information received from the
Resource Data Collection and Processing processes.
Principal processes are:
• Monitor Resource Performance: These processes monitors received resource performance infor-
mation. These processes monitor normal performance, and will also apply appropriate thresholds
against resource performance. If a performance threshold is crossed, a resource trouble report
will be instituted and handled through the Resource Trouble Management processes.
• Analyze Resource Performance: These processes analyze and evaluate received resource perfor-
mance information and report the findings of this analysis. This also includes further analy-
sis of the performance anomalies identified by the Monitor Resource Performance processes.
Resource fault conditions will be detected by the Resource Trouble Management processes.
However these processes, while still impacting service quality, may not detect intermittent fault
conditions in multiple resources. The Analyze Resource Performance processes determine the
overall quality, using specific measurements in order to detect service quality degradations.
They may also detect degradation trends before the resource performance has dropped below
an acceptable level.