Patent ID: 6259697
Filing Date: 2001-07-10
Classification: H04L,H04Q

Abstract:
A PVC switching system for selectively using one of PVC information tables as a current table, and connecting an originating terminal and a terminating terminal according to content of said current table, each of the PVC information tables being recorded with originating and terminating correspondence information, said information containing information for identifying an originating terminal and a terminating terminal for each of those subject to switching a plurality of PVCs, each of PVC being a connection path fixed with an originating terminal and a terminating terminal, wherein said system comprises comparison means, in response to a switching command for comparing content of each entry in said current table and those in a table used after switching, and connection control means for, when there are entries for which the result of said comparison fails to match, disconnecting the connection path indicated by said entries, and connecting a connection path indicated by said entries in the table used after switching.