Tejas Network Management System (TejNMS) provides integrated management of network elements across an intelligent optical network. The TejNMS collects and represents data from geographically dispersed network elements on to a console in a centralized Network Operations Center (NOC). Service providers with NOC operations can use the network-wide view presented by TejNMS to configure and set-up Tejas network elements with ease.
The NMS GUI forms a single Network Operation Center (NOC). The service providers with NOC operations can use state-of-art graphical interface to configure and set up the Tejas network elements. NMS design is based on the Open Systems Interconnect (OSI), “FCAPS” model of Management Functional Areas (MFAs). Characteristics of NMS
NMS is based on Client-Server model, enabling centralized monitoring and control of the Tejas optical products.
The NMS server monitors the managed Element Management System (EMS). It monitors the EMS level alarms and the node level alarms of the nodes managed by the EMS.
The NMS monitors and manages the EMS. The features of the NMS are broadly classified into the following three main categories:
Generic features Advanced features
TMN (FCAPS) Functionality
The functionalities of the FCAPS are:
F- Fault Management: helps to identify, locate and repair problems. C- Configuration Management: provides the service and resource
provisioning.
A- Accounting Management: enables the collection of data to support report generation and asset management.
P- Performance Management: enables gathering of statistics for planning, troubleshooting and providing customer reports. S- Security Management: enables the control of access to network
resources to maintain reliability.
Generic Features Scalable architecture Database backup Modular User Interface Advanced F atu es e r
Web based Access Trend Analysis
Network Management Functions
Performance Management
Performance management reports and evaluates the transmission performance parameters of the Tejas network elements. Its main responsibility is to collect performance data of the network element in the communication network for monitoring and revising the status and performance of the network or the network element. Performance data is visible only for the circuits displayed in the TejNMS. The TejNMS allows the configuring the type of performance data to be collected from each network element and stores the collected data for at least 30 days.
Fault Management
Fault management monitors all the TJ1500 network elements and its network path in real-time and displays the count of each type of alarm raised (critical, major, minor, deferred and warning) on the Graphical User Interface (GUI). An alarm counter/banner displays the alarm count. The alarm counter/banner refreshes automatically and is color coded based on severity of the alarm. The color code is given below:
Orange – Minor
Yellow - Deferred, Warning
The TejNMS displays alarms raised on each individual network element and also the total alarms raised on the entire network in real-time. The probable cause of the alarms is also displayed for each alarm. Alarms for upto 30 days can be stored and viewed. The alarms can also be exported which helps the alarms to be stored for a longer duration. The TejNMS also recovers all the active alarms on re- establishment of connection when there is any communication loss with the network elements.
The Network operators can add remarks and acknowledge the alarms. The TejNMS also indicates if the regional NOC (EMS) has acknowledged the alarm. Besides, they can also sort the alarms based on user-defined criteria and generate reports on alarms for the entire network, cards, circuits, and so on.
Configuration Management
Configuration management in TejNMS allows a user to manage the changes made to the configuration of the network devices. Managing configuration changes includes collection, backup, archive, viewing and comparison. The user can configure the network element and roll back to previous configuration in case of any trouble.
Besides managing configuration, the configuration management also collects information on the device hardware and software inventory.
Security Management
Security management ensures safety against unauthorized persons from accessing network resource and equipment illegally. Security management relates to all management functions namely, management of user grade and authority, access control, data security and operation log management.
The TejNMS defines multiple users with different privileges for accessing the network. The following are the user privileges:
USER (read-only, only viewing)
OPERATOR (all day-to-day provisioning, fault monitoring, configuration and performance monitoring)
OPERTOR2 (configuring network element name, router ID, Ethernet IP and all other day-to-day provisioning, fault monitoring, configuration and performance monitoring)
ADMIN (user account management, administration of sub- networks/topology)
The security management provides the password administration and audit trail features.
In the password administration feature, the administrator/user can set the user login and password. Only the ADMIN account(s) can know the EMS passwords. For OPERATOR or OPERATOR2 privileges, the user will not be prompted for the EMS user/password information. These user accounts are different for each EMS. The ADMIN configures these accounts once while administering the EMS/Sub-Network, so that each operation does not request for the authentication again and again.
The Audit Trail feature helps to maintain a detailed audit trail of all the operations performed along with the user name, operation status (success/failure) and time. Management Connectivity
The TJ1500 has multiple options for management connectivity. Some of the options are Local craft terminal (LAN Interface), remote management via in-band communication or dial-up. All the physical management connectivity is terminated on MFC1 card, which has necessary circuit for the physical interface.
Networking based on LAN
TJ1500 is locally managed using a 10/100BaseT Ethernet interface located on the front panel. It has a RJ-45 connector and implements a NIC port configuration. Auto-negotiation is enabled.
The local craft station is a PC with a standard web browser. The TJ1500 implements the HTTP protocol to communicate with the browser. All node configurations and maintenance operations can be performed using a simple graphical user interface.