User guide

2-19
Cisco Media Gateway Manager 5.0 User Guide
OL-5461-02
Chapter 2 Basic Concepts
What Are the General Features of Cisco MGM?
2.3.3.3.1 Adding New NEs to the Cisco MGM Domain
The Add New NE wizard allows you to add a new NE, or to add several new NEs at once. The wizard
allows you to enter multiple NE IP addresses one at a time, or enter a beginning and ending IP address
and automatically add a range of NEs.
2.3.3.3.2 NE Connectivity and Operational States
The operational state of an NE can have the following values:
• 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.
• In Service—The NE is currently deployed and requires monitoring. Cisco MGM collects polling,
FM, configuration management, 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.
• In Service–Initializing—The NE is marked as In Service–Initializing when Cisco MGM connects to
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–Sync Configuration—The NE is marked as In Service–Sync Configuration when Cisco
MGM uploads a configuration for that NE. You can change the operational state of an NE from In
Service–Sync Configuration to Out of Service.
The communication state of an NE can have the following values:
• Not Applicable—The NE is Out of Service. The connection to the NE has not been established or
has been dropped.
• Available—The NE is In Service or Under Maintenance and Cisco MGM is connected to the NE.
The NE is declared Available when the NE is reachable and supported by Cisco MGM (as defined
in the Administration > Supported NE table).
• Unavailable—The NE is In Service or Under Maintenance but Cisco MGM cannot establish a
connection to the NE. When Cisco MGM loses the connection to the NE, an EMS alarm with a
probable cause of “Connection loss” is generated.
2.3.3.4 NE Release Management
An NE added to the Cisco MGM domain is discovered and managed by Cisco MGM only if the NE
software version is defined in the Supported NE table.
Note See Cisco Media Gateway Manager 5.0 Release Notes for the NE software versions that are supported
in Cisco MGM 5.0. The Cisco MGM release notes are available on the product CD and online at
http://www.cisco.com/univercd/cc/td/doc/product/rtrmgmt/optnet/mgm/mgmreln/index.htm.
Caution Before updating the software image on an NE, check the Cisco MGM release notes to verify whether the
NE software version is supported in this Cisco MGM release.