System for configuring an event driven interface including control blocks defining good loop locations in a memory which represent detection of a characteristic pattern

• US 5,493,689 A
• Filed: 03/01/1993
• Issued: 02/20/1996
• Est. Priority Date: 03/01/1993
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Waclawsky, John G., Hershey, Paul C.
• Primary Examiner(s): Lee, Thomas C.
• Assistant Examiner(s): WEINSTEIN, MARC
• Application Number:
  US08/024,542
• Time in Patent Office: 1,086 Days
• Field of Search: 395/200, 395/650, 369/148
• US Class Current: 710/1
• CPC Class Codes: G06F 11/34 Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
• CPC Class Codes: G06F 2201/86 Event-based monitoring
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks

Abstract

A system and process are disclosed for configuring an Event Driven Interface and analyzing its output for monitoring and controlling a data communications network. The invention is a combination of a source of control vectors, which sends control vectors to a Programmable Performance Vector Generator which is coupled to a data communications network to be monitored and controlled. The control vectors configure an Event Driven Interface contained in the Programmable Performance Vector Generator, based upon the protocol of the network, performance information required, and the type of analysis and network characteristics required from the system. Event vectors are then output to an expert system which analyzes them and provides monitoring information and control signals to the network. The invention enables real-time load distribution, load balancing, problem determination, routing and customer services.

Claims

1. A system for configuring an Event Driven Interface having a memory for a data communications network which communicates a serial stream of binary bits having a characteristic pattern, comprising:

a control vector generator coupled to said event driven interface, for generating a control vector C(i) which describes said characteristic pattern by generating a control block for each bit in said characteristic pattern, each control block including a current memory location and a next memory location for said memory, and generating an infinite good loop location for said memory which is stored in one of said control blocks to represent detecting said characteristic pattern;

said control vector generator outputting said control vector to said Event Driven Interface coupled to said network, for configuring said Event Driven Interface to digitally filter said characteristic pattern such that when said characteristic pattern is detected said infinite good loop location is addressed and a counter is incremented to generate an event vector.

2. The system of claim 1, wherein said Event Driven Interface further comprises:

an n-bit address register having a first portion with n-1 bits and an second portion with one bit and an input to said second portion coupled to said network, for receiving a bit from said serial bit stream;

an addressable memory having a plurality of data storage locations, each having a first portion with n-1 bits and a second portion with m bits, said memory having an n-bit address input coupled an output of said address register and having a data input coupled to said control vector generator, for receiving said control vector to configure data stored in first and second ones of said data storage locations to represent a digital filter for said pattern;

a feedback path from an output of said memory to an input of said register, for transferring said data from said first portion of said first one of said data storage locations in said memory to said first portion of said address register, for concatenation with said bit from said serial bit stream to form an address for said second one of said data storage locations of said memory;

a counter coupled to an output of said memory and coupled to said event vector analyzer, for counting said at least a bit in data output from said second portion of said second one of said data storage locations in said memory, forming said event vector which is output to said event vector analyzer.

3. The system of claim 1, wherein said data communications network is a token ring network.

4. The system of claim 1, wherein said data communications network is a FDDI network.

5. The system of claim 1, wherein said data communications network is a Ethernet network.

6. The system of claim 1, wherein said data communications network is a SNA network.

7. The system of claim 1, wherein said data communications network is a TCP IP network.

8. The system of claim 1, wherein said data communications network is a SONET network.

9. The system of claim 1, wherein said data communications network is a ATM network.

10. A method for configuring an event driven interface having a memory, for a data communications network which communicates a plurality of serial binary bits having a characteristic pattern, comprising the steps of:

generating a control vector C(i) for said event driven interface which describes said characteristic pattern, comprising;

generating a plurality of control blocks, one for each of said plurality of bits in said pattern said control blocks including current memory location and next memory location for said memory;

generating an infinite good loop location for said memory which is stored in one of said control blocks to represent detecting said characteristic pattern;

generating control vector data for storage in said memory which provides a count value to a counter coupled to said memory when said infinite good loop location is addressed in response to said Event Driven Interface receiving said characteristic pattern;

outputting said control vector to said Event Driven Interface, for configuring said Event Driven Interface to digitally filter said characteristic pattern and increment said counter coupled thereto, to generate an event vector E(i).

11. The method of claim 10, wherein said data communications network is a token ring network.

12. The method of claim 10, wherein said data communications network is a FDDI network.

13. The method of claim 10, wherein said data communications network is a Ethernet network.

14. The method of claim 10, wherein said data communications network is a SNA network.

15. The method of claim 10, wherein said data communications network is a TCP IP network.

16. The method of claim 10, wherein said data communications network is a SONET network.

17. The method of claim 10, wherein said data communications network is a ATM network.