deploying and managing ip over wdm networks - Index of

100 Deploying and Managing IP over WDM Networks
6.3.1.3 Network Inventory Management
The aim of the network inventory management (NIM) process is to install and
administer the physical infrastructure of the network. The responsibilities of the
process concern the installation and acceptance of the equipment, the physical
configuration of the network, and management of the spare parts, the part
return/repair subprocesses, and equipment software upgrades.
The system should be able to build an inventory with all of the resources
and equipment of the network, and that inventory should keep track of all of the
network topology changes.
6.3.1.4 Network Maintenance and Restoration
The aim of the network maintenance and restoration (NM&R) process is to
maintain the network, eliminating or minimizing the impact of problems
caused by the infrastructure; to restore or repair customer-affecting troubles
quickly, and to identify events in the network prior to those events becoming
customer-affecting problems. This process concerns maintenance of the operational
quality of the network according to the required network performance
goals.
The following are some of the most important requirements defined in
this section:
• The system must receive notifications about network events from the
element managers.
• If there is a fault in the network that compromises a service, the user
who requested the service must be informed.
• The WINMAN system should be able to provide alarm-filtering tools
to the users.
• The system must be able to perform alarm correlation to find the cause
of the faults in the network.
• The system should reroute affected services to restore as soon as possible
the affected services.
6.3.1.5 Network Data Management
The aim of the network data management process is to ensure that network performance
goals are tracked and notifications are provided when they are not
met. The process must provide sufficient and relevant information to verify
compliance to SLSs and QoS levels. Some of the requirements are the following:
• The WINMAN system should monitor the QoS parameters of the
active connectivity services.