Message routing check system

Details Message routing check system Message routing check system

Filed on

1990-08-16

Date issued

1992-06-16

Examiner

Beausoliel, Robert W.

Patent Class

Excavating

Other Related Categories

371 201, G06F 1100

Type

Patent

Status

active

Patent number

051230216

Description

ABSTRACT:
A telecommunication apparatus in which data messages are routed across a switch, each message comprising a message portion and an incoming message identity portion, includes circuitry for generating from the incoming message identity portion an outgoing message identity portion, a switching circuit for utilizing the incoming and outgoing message identity portions to route the message to an output port, circuitry for utilizing the outgoing message identity portion to generate a further message identity portion, and comparator circuitry for comparing the incoming and further message identity portions to detect faults.

REFERENCES:
patent: 3909562 (1975-09-01), Lager
patent: 4376999 (1983-03-01), Abbott
patent: 4542507 (1985-09-01), Read
patent: 4561090 (1985-12-01), Turner
patent: 4995042 (1991-02-01), Guthaus
"Method and Arrangement for Testing Switch-Network Components", IBMTDB, vol. 31, No. 8, Jan. 1989, pp. 414-427.

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