System Structure. Hardware Structure. Cabinet and Its Accessories. Subrack and Its Accessories. Software Structure, страница 4

  Step 2  Command line interface module

n  This module receives and performs grammatical and semantic analysis on the string command issued from the command line terminal through the communication service module. Then, the string commands are converted into NE commands and sent to corresponding equipment management modules.

n  This module performs reverse interpretation to the response returned from the equipment management side and translates them into intelligible character interface data. Then, these data are sent to the communication module and displayed at the command line terminal.

n  Being the path for on-line loading the board software, it also performs part of the system service functions such as resetting the JSCC, reading and writing memory and querying error records.

  Step 3  Security management module

n  It executes the user management function, including operations such as login, logout, adding, deleting, modifying and querying of the user, automatic setting of exit time, and NM lockout.

n  It limits the user access.

n  At user login, this module will notify relevant equipment management modules (for example, alarm module and performance module) to fulfill their function of managing the reported routes.

4.  Equipment Administration Module (AM)

The equipment AM is the kernel of the NE software for implementing NE management. It includes Manager and Agent. Administrator can send network management operation commands and receive events. Agent can respond to the network management operation commands sent by the network administrator, implement operations to the managed object and submit events according to state change of the managed object.

The equipment AM includes configuration management module, performance management module, alarm management module and MSP switching management module.

  Step 1  Configuration management module

This module is one of the key components of the NE software. It sets and maintains respective engineering data of the OptiX equipment, and performs the following functions:

n  Setting and maintaining NE parameters

n  Setting and maintaining the configured data of respective boards

n  Analyzing and generating the NE service configuration data

n  SNCP and MSP data generation

n  SNCP, protection of clock subnet and protection at equipment level

n  Daily maintenance and test of the equipment

  Step 2  Alarm management module

This module implements fault management function, including alarm monitoring, alarm reporting and alarm location.

Alarm monitoring is to test and report the events and status of the network.

As detection results of some events and status, alarms are automatically generated by NEs. Users can determine which events and status need automatic alarm reporting, while others are reported as requested. The alarm management module supports functions below:

n  Alarm event automatic report

n  Alarm indication

n  Alarm monitoring status setting

n  Alarm suppression status setting

n  Alarm severity setting

n  Current alarm event management

n  History alarm event management

  Step 3  Performance management module

This module collects, arranges and reports the data that reflect the equipment running status. Such data include:

n  Those reflect bit errors during the equipment transmission, including B1, B2, B3 and BIP-2.

n  Synchronization performance chiefly refers to pointer justification, including administrative unit (AU) pointer justification and tributary unit (TU) pointer justification.

n  Laser parameters, for example, launched/received power and bias current.

n  Environment parameters, for example, ambient temperature.

  Step 4  MSP switching module