| 摘要 |
For establishing an S-PVC (soft private virtual connection) connection in a PNNI (private network-network interface) network of a plurality of peer groups, each of which includes at least an ATM (asynchronous transfer mode) switching apparatus as an ATM node, a first identifier and first designated route data associated with the S-PVC channel are set in each of the plurality of peer groups. In the ATM node in each of the plurality of peer groups, a call originating request including second designated route data and a second identifier is received and the first identifier and the second identifier are compared. A next call originating request containing third designated route data as the second designated route data and the second identifier is generated for a next node based on the first and second designated route data and the second identifier when the first identifier and the second identifier are coincident with each other. The next call originating request is transmitted to the next node. The above operations are repeated over each of the plurality of peer groups.
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