Method for signalling connection control part message loop preve

Details Method for signalling connection control part message loop preve Method for signalling connection control part message loop preve

1996-12-23

1999-03-30

Matar, Ahmad F.

Telephonic communications

Plural exchange network or interconnection

Interexchange signalling

379229, 379230, 370254, H04M 700, G01R 3108

Patent

active

058898476

ABSTRACT:
A method (100) for preventing message looping in a telecommunications network (70) includes the steps of receiving a UDT/S query message, determining a next destination for processing the query message and a route for delivering the query message to the next destination (102). A determination is then made as to whether the route to the next destination is XUDT/S capable (104). The UDT/S query message is converted to an XUDT/S format by inserting a hop counter (38) therein if the route is XUDT/S capable (108). The query message is then delivered to the next destination via the route (110). The hop counter (38) in the query message is then decremented at the next destination in response to receiving a message of the XUDT/S format (112). A message loop error is recognized and processed when the hop counter (38) reaches a predetermined value.

REFERENCES:
patent: 5014262 (1991-05-01), Harshavardhana
patent: 5533114 (1996-07-01), Ballard et al.
patent: 5721728 (1998-02-01), Fowler et al.

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