User guide

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Cisco Media Gateway Manager 5.0 User Guide
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Chapter 5 Maintaining an Efficient Network
How Do I Modify the Network?
5.3.1 Changing the Operational State of an NE
You need to change the operational state of a NE to carry out certain tasks. For example, the operational
state field of an NE must be changed to Out of Service before the NE can be deleted.
To change the operational state of an NE:
Step 1 In the Domain Explorer tree, select the NE that will be changed. The Network Element Properties pane
appears.
Step 2 In the Operational State field, choose one of the following operational states:
• In Service—The NE is deployed and requires monitoring. Cisco MGM collects polling, fault
management (FM), configuration management (CM), and PM data from in-service NEs and stores
the data in the database.
• Out of Service—The NE has been marked Out of Service by a network administrator and does not
require monitoring. The Cisco MGM database records the last known state of the NE when it was
In Service.
• Under Maintenance—The NE is temporarily Under Maintenance but requires monitoring. This state
is the same as In Service except that Cisco MGM does not report alarms or events for Under
Maintenance NEs.
Tip You can also right-click an NE in the Domain Explorer tree and choose Mark Under Maintenance,
Mark In Service, or Mark Out of Service from the shortcut menu.
Two additional operational states cannot be chosen by the user. These operational states are changed by
Cisco MGM based on the initialization tasks that are completed:
• In Service–Initializing—The NE is marked as In Service–Initializing when Cisco MGM reaches
connectivity of the NE (Communication State is marked as Available) and the discovery process
starts. The initialization process is completed when fault and inventory have been synchronized. The
operational state changes from In Service–Initializing to In Service–Synch Configuration.
• In Service–Synch Configuration—The NE is marked as In Service–Synch Configuration when
Cisco MGM uploads a configuration for that NE. You can change the operational state of an NE
from In Service–Synch Configuration to Out of Service.
Step 3 Click Save.
Timesaver If an NE is brought down, mark it as Out of Service to prevent unnecessary polling traffic on the data
communications network (DCN).
Note When you mark an NE as Out of Service and then mark it as In Service, the Cisco MGM alarm time
stamp in the Alarm Browser window is resynchronized with the time stamp when the NE is put back In
Service.