EMS Functions - Operation and Maintenance

6 Operation and Maintenance

6.1.3 EMS Functions

NetNumen N31 has the following functions: topology, configuration, fault, performance, security, strategy, log, report, etc.

NetNumen N31 comprises the NE managers of multiple NEs and supports centralized management of multiple NEs in the same platform. It is used to implement operation and maintenance of one or more NEs. The NE managers are in the form of functional components and built in the EMS. They can be loaded as per the type of the equipment in the managed network to implement the point-to-point management of the corresponding NEs.

They interact with the managed equipment via the Telnet interface (man-machine commands) or with the SNMP to implement the following management functions:

6.1.3.1 Network topology management

• Support for management of network topologies: Multiple management views based on different equipment types, different subnets and different management domains

• Support for automatic discovery of the NE nodes in the network: The nodes automatically discovered are stored in the network topology database

• Support for manually adding nodes to the network

• Network node filtering: Customization of the filter

• Monitoring of the node running state based on the network topology

• Support for multi-level topologies

• Support for adding virtual nodes to the topology

• Support for grid, ring and star topological arrangement of nodes

• Support for network topological connections among the nodes and connection descriptions

• Support for node sequencing by English or Chinese in the topology

• Support for English or Chinese naming and renaming of nodes in the topology

• Support for fuzzy search by node name or IP address in the topology

• Support for editing and deleting nodes in the topology

• Support for customization of the background map in the topology.

6.1.3.2 Configuration management

The related attributes of the equipment and the services can be configured so as to put the network into operation and launch such services. The system supports the following types of configuration management tools:

• GUI-based configuration management

• Telnet-based configuration management with man-machine commands

6.1.3.3 Monitoring of the rack state

• Monitoring of the operation state of NEs (including racks, cards and ports) for vivid and detailed location of the fault sources

• Support for navigation of other management functions (for example, different configuration functions) via the rack diagram

6.1.3.4 Fault management

Through fault management the equipment alarms reported by all NEs of the entire network and the network event reports can be received and presented to the maintenance staff in real time in the visible and audible form, so that the maintenance can confirm and process such alarms and network event reports and store the collected alarm reports in the database for alarm statistics and query.

• NE alarm display

• NE alarm filter setting

• Redefinition of alarm levels

• Redefinition of alarm solution suggestions

• Setting of NE audio alarms

• Display and handling of alarm data in the entire network: Monitoring of history events and the current alarm list in a uniform way

• Storage of history alarm data

• Analysis of event correlation and fault location: Alarms of related types can be combined to pinpoint the fault

• Confirmation and deletion of alarms

• Transfer of alarms: Alarms can be transferred to network nodes in different levels

• Filter of alarms: The user can customize filters

• User definition of alarm levels

• Query and statistics of faults: Support for report type output

• Fault diagnosis and test

6.1.3.5 Performance management

The performance management module monitors and analyzes the performance of the network and equipment. It collects performance data from the NEs and generates performance reports after processing them, so as to provide information for the maintenance and management departments and guide the network engineering, planning and adjustment for improving the operation quality of the whole network.

• Collection of NE performance data

• Monitoring of NE performance alarms

• Graphical display of NE performance data

• Storage of NE performance data

• Storage of history performance data

• Support for display of network performance data in graphical and table forms

• Monitoring of network performance state and prompt of performance alarms

• Automatic deletion of history performance data: The user can customize the storage period of performance data

6.1.3.6 Security management

• Support for right management of the system functions: Operation rights of multiple system functions are assigned to specific user groups. The users in a user group can conduct the management operations corresponding to the group rights. The security management rights can be further divided to the menu level so that the right management is more flexible;

• Support for right management of the managed network domain: The managed equipment is assigned to the specific user, who can manage the equipment with the assigned rights. In addition, the security management domain is based on the network topological areas, which facilitates the by right and domain management.

• System security logs: This includes multiple log types such as system security log and user operation log. The system supports auditing of system operation and user operations.

6.1.3.7 Policy management

• Support for two policy types: Timing execution policy and event-triggering execution policy;

• Policy customization. After being customized, the policy is registered and triggered in the policy engine, and the system supports automatic dispatching and protection based on the network operation condition;

• System management policies. The user can customize the policy execution time and date so that the system will trigger the policies at the specified time. Such policies are alarm clearance policy, operation log clearance policy, performance data clearance policy, and database backup policy.