SL-GMS Adds Efficiency and Accuracy to System
Without SL-GMS, operators would have only alert text and location name to determine the source of a problem. Now, with SL-GMS, graphics are used to create maps with icons representing all nodes and backbone trunks. Using the dynamic nature of SL-GMS, the animated nodes and equipment components change in real-time according to real-time conditions of the network. A composite model displays all systems components across Canada, with equipment broken down by provinces and major cities.
Operators can zoom in to supermodels to view close-ups of trunks, with exploded views of switches, shelves and cards that are dedicated to a particular connection. Each supermodel changes color dynamically, using Open System Interconnect standards to graphically display the severity of ale1t information to operators. Reel indicates critical; orange indicates major; yellow indicates minor; blue indicates warning; and magenta indicates an indeterminate alert.
For example, if a problem suddenly develops on a Tl trunk line in the network, the icon representing the trunk changes color and shows the operator the exact location of the problem on the map. Multiple alert windows show the text of the alerts, also color-coded by severity. An additional on-line advice window is also available.
Coupled with NetExpert’s expert system capability –
a rules-based system that collects and filters data from a broad range of standard and nonstandard equipment – the messages that are selected for display by NetExpert tell the operator how to resolve the problem. In addition, the Advisor displays any related devices that could be affected. The operator is then able to zoom to the best view of the problem. Finally, because communications is bi-directional, pre-defined solutions can be sent back over the network to resolve the problem, without operator intervention. In total, alerts are instantly captured,
allowing the operator or the system to investigate the problem immediately, minimizing service down time and lost revenue.
NetExpert and SL-GMS run on all major UNIX platforms including Hewlett Packard, Silicon Graphics Incorporated, Sun Microsystems, Digital Equipment Corporation, IBM, Stratus and Tandem. The Stentor application is somewhat unusual in that the organization is a consortium. Stentor has one workstation for each province, allowing each of the nine members in the consortium to monitor and control their portion of the WAN.