Auto-discovery of supported NEs
During auto-discovery, NEs are discovered and added to the management system.
As each NE is discovered, it is inventoried, and the following information about each
NE is gathered and added to the management system.
Note:
This is full list of possible
information that may be discovered. The type of information discovered for each NE
depends on the NE type.
•
Cross-connections
•
Equipment
•
Network Connections – ONNS
•
Optical Connections
•
Port parameters
•
Protection groups
•
System parameters
•
Subnetwork Discovery
•
Fault – Alarms and Events
Auto-discovery of non-managed NEs and unmanageable devices
The management system discovers non-managed NEs (supported only in the SDH
environment) and unmanageable devices during the auto-discovery process. However,
the management system cannot log into them during auto-discovery, so they are
discovered with an NE type of “unknown.” The user must use the management system
to change the NE type to “non-managed NE” or “unmanageable device”, via the task
“To modify an OMS-to-NE connection” (p. 4-6)
. Non-managed NEs display on the
Network Map
, but unmanageable devices do not display on the
Network Map
.
Auto-discovery of physical network connections
During auto-discovery, physical network connections between NEs are discovered and
added to the management system.
For NEs that return the following information, the management system can construct
the physical network connection without having to query its neighbor(s):
•
Local Port AID
•
TID of the terminating neighbor
•
Neighbor Port AID
Although the management system does not have to query the neighbor NE to construct
the physical network connection, the management system verifies the neighbor’s
physical network connection port ID by conducting a database synchronization on the
neighbor NE in order to auto-discover the physical network connection port ID if the
port ID is not already in the management system database.
Management communication setup concepts
Auto-discovery concepts (subnetworks)
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3-28
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