 Read crossbar elimination in a VLIW processor |
| OF THE PREFERRED EMBODIMENTS FIG. 2 shows a VLIW processor according to the invention. The ... |
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| Method and system for maintaining strong ordering in a coherent memory system |
| The above and other needs are met by a method and system of strong ordering that uses timestamp ... |
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| Network data flow control technique |
| We claim: 1. A system for controlling the flow of data in a communication network of the kind in ... |
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| Optical fiber cable service system provided with video on demand service |
| The object of the present invention is to provide an optical fiber cable service system capable of ... |
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| System for interactively distributing information services |
| The disadvantages heretofore associated with the prior art are overcome by the present invention. T... |
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| Facility for assigning transmission channels to terminals of a service-on-demand system |
| It is therefore an object of the invention to organize the assignment of transmission channels to ... |
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| Clock synchronous semiconductor memory device |
| What is claimed is: 1. A semiconductor memory device for taking in an external signal in ... |
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| Configuration memory for programmable logic device |
| It is therefore an object of the present invention to provide a programmable logic device which ... |
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Alarm server systems, apparatus, and processes
| Details |
Inventors: Davies, Stephen W.;
Assignee: Netsolve, Inc. (Austin, TX)
Primary Examiner: Meky; Moustafa M.
Assistant Examiner:
Attorney, Agent or Firm: Worsham Forsythe Wooldridge LLP
A system used to manage a network by monitoring at least one interface of the network comprises a poller, a server, and a database, all in communication with one another. The poller continuously checks the at least one interface of the network by continuously sending out a poller query message to at least one interface of the network. The poller suspects a first interface of at least one interface of failing when the poller does not receive a poller reply message in response to the query messages from the first interface within a first time period. The poller sends an alert signal to the server notifying the server that the first interface of the at least one interface may be failing when the poller suspects the first interface of the at least one interface is failing. After receiving the alert signal the server sends out at least one server query signal to the first interface, the server monitors the response to determine whether the first interface replies to at least one server query signal by sending at least one server replay message. The server evaluates at least one server replay message to determine whether the first interface is failing. The database contains information concerning at least one interface of the network. When the server determines the first interface is failing, the server pulls first information concerning the first interface and sends an alarm signal with the first information to client applications modules. A process to monitor at least one interface on a network comprises the following steps: (a) continuously sending Get Requests to at least one interface; (b) monitoring any first replies received from at least one interface to the Get Requests to determine whether a reply is received at a first time from each interface of at least one interface; (c) sending an alert message to a server, if a reply is not received from a first interface of at least one interface; (d) sending at least one server query to the first interface by the server; and (e) monitoring any second replies received from the first interface in response to at least one server query by the server to determine whether the first interface has failed. |
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DETAILED DESCRIPTION The present inventions will be described by referring to apparatus and methods showing various examples of how the inventions can be made and used.
When possible, like reference characters are used throughout the several views of the drawing to indicate like or corresponding parts.
System Topology and Process Overview Preferred embodiments employ a distributed architecture to achieve high performance on relatively inexpensive hardware.
All of the components preferably operate or run on a platform operated by Windows NT.
TM.
or Windows 95.
TM.
.
A topology overview of a preferred embodiment is shown in FIG.
5 and is generally comprised of the following system components: server application module 501, tools applications module 502 (which is shown in FIG.
5 as being combined with the server application module 501), poller module 503 (which is shown broken into two (2) poller modules 503A and 503B, display server module 504 (which is shown broken into two (2) display modules 504A and 504B), client applications modules 505A-505F and 505G-505L, and database module 506.
The limitations on the number of the above components are as follows: one (1) server application, one (1) tools application, eight (8) pollers, sixteen (16) display servers and 256 clients.
In addition, note the preferred embodiment includes a collection of applications that make up the server function, whereas the term "server application" refers to a single application.
FIGS.
9A-9E are flow charts showing the initialization procedure for poller modules 503A and 503B, server module 501, database module 506, clients 505A-505F and 505G-505L, and display server modules 504 in FIG.
5 and are self explanatory.
Poller modules 503A and 503B are in communication with server module 501 and tools applications module 502 via communication links 510.
Server module 501 and tools applications module 502 are in communication with database module 506 via communication link 514.
Server module 501 and tools applications module 502 are in communication with display module 504A and 504B via communication links 512
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Processing Data 
