Multiplex communications – Diagnostic testing – Of a switching system
Patent
1995-08-25
1997-06-10
Olms, Douglas W.
Multiplex communications
Diagnostic testing
Of a switching system
370252, 370400, H04Q 120, H04L 1226
Patent
active
056383576
ABSTRACT:
There is disclosed a method for scheduling verification tests to audit routing information in a packet switching network comprising a plurality of packet switching nodes and a plurality of bi-directional links each interconnecting a distinct pair of said nodes. The method begins with the steps of selecting a test time duration period for scheduling the verification tests of the routing information in the network and selecting a number of nodes to be tested. The method determines for each node to be tested in the network: (i) a number of sub-tests to be run via the bi-directional links to all destination nodes associated with the test node, (ii) generates a time gap interval based on the quotient of the scheduled test time duration period by the number of sub-tests to be conducted, (iii) generates a random number greater than or equal to 0 and less than or equal to the time gap interval for each sub-test to be run, and (iv) schedules the verification sub-tests in succession during the time test duration period by staggering starting of the first sub-test from the commencement of the time test duration period, and all succeeding sub-tests from the completion of the previous sub-test, by a respective time interval which is a function of the time gap interval and the random number for that sub-test. The method of the present invention has the advantage in that it randomly disperses the running of the verification sub-test in the network over a test time frame. As a result, traffic loading induced on the network by the verification tests is dispersed and risk of overloading the network is reduced.
REFERENCES:
patent: 4486877 (1984-12-01), Turner
patent: 4670871 (1987-06-01), Vaidya
patent: 4696000 (1987-09-01), Payne, III
patent: 4745593 (1988-05-01), Stewart
patent: 5218601 (1993-06-01), Chujo et al.
patent: 5233607 (1993-08-01), Barwig et al.
patent: 5241533 (1993-08-01), Kimoto et al.
patent: 5371732 (1994-12-01), Brocken et al.
patent: 5412654 (1995-05-01), Perkins
patent: 5426688 (1995-06-01), Anand
CCITT Draft Recommendation Q. 751 "Signaling System No. 7--Managed Objects", Geneva, 1993, pp. 1-10.
CCITT Recommendation Q. 753 "Signaling System 7 Management Functions MRVT. SRVT. CVT and Definition of OMASE--USER", Geneva, 1999, pp. 1-12.
Bellcore "CCS Node Generic Requirements to Support Routing Verification Tests", Nov. 1993.
Glitho Roch
Holm Richard
Nguyen Chau T.
Olms Douglas W.
Telefonaktiebolaget LM Ericsson (publ)
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