Next hop loopback

Multiplex communications – Diagnostic testing – Path check

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Details

370218, 370241, 370216, G01R 3108

Patent

active

061544485

ABSTRACT:
In a telecommunications network, broken connections can be detected and located through a next hop loopback technique. The next hop loopback technique involves the generation, transmission, and analysis of specialized data packets which attempt to traverse a telecommunications connection, node by node. The failure of a data packet to properly traverse a link can then be used to determine whether a connection is broken, to notify the network management system as to the location of the broken connection, and whether appropriate action is warranted so that the network operator can re-route data around that portion of the network. In addition, the next hop loopback technique can be triggered on an "as needed" basis by the end user, rather than on a periodic basis, thereby conserving network time and resources.

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"Integrated Services Digital Network (ISDN) Maintenance Principles, B-ISDN Operation and Maintenance Principles and Functions" ITU-T I.610, 1996, pp. 1-29.

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