Network Element Software for STM-1 (upto 28 E1)

VCL100LT Network Element Software

The VCL100LT node is managed through the embedded NES (Network Element Software). The main capabilities of NES are listed below:

Switchover to redundant power supply in the event of any hardware fault.
Auto Recovery after Input Power Failure in a redundant system
Node-wise Operations & Maintenance
User programmable severity levels for Alarms
Node-wise Alarming & Remote Login.
Performance monitoring as per the standard specifications (G.826).
In-service monitoring of El tributaries.

A standard NES Software starter package enables all of the above.

User can access and control all of the above-mentioned features using a standard Hyper Text Transfer Protocol (HTTP) based web browser. The Ethernet interface on the base chassis is to be used as the physical data connection for this purpose. NES also allows users to control remote nodes using the web browser interface. For this purpose we use SDH DCC bytes for carrying the management information to the remote node.

To provide network wide management and control of VCL100LT nodes through industry standard Network Management Systems, users can enable the Simple Network Management Protocol interface software module (NES-SNMP). This module provides open interfaces which can be, also be used by Network Management System (NMS) which is separately.

The point-and-click provisioning tool (PNCP) is a set of software modules that enables customers to provision end-end circuits is a network that comprises all family of SDH products. Users can enable this feature using the node-resident software module NES-NODE-PNCP, and tire server-resident software module NES-HOST-PNCP.

Network Management System

STM-1 provides support for centralized network management through Network Management System (NMS).

Operations Interfaces

10/100 Mbps half-duplex LAN interface for NMS data connection to VCL100LT node (RJ45 connector)

RS232C Craft interface for local Command Line Interface data connection

2 wire analog telephone interface for Engineering Order Wire (E l or E2 bytes access) with omnibus calling

In-band control channel supported for remote management (F2 & F3 bytes used from POH)

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