Integrating switching and facility networks using ATM
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United States of America Patent
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Oct 8, 2002
Issued Date -
N/A
app pub date -
Dec 23, 1998
filing date -
Nov 19, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A method is provided for setting up a communication from a first edge node, across a network that uses direct virtual path routing, to a second edge node. The first edge node receives a request to set up the communication. The second edge node is identified as the destination of the communication, based on the request. A first virtual path identifier (VPI) is obtained that defines a first path from the first edge node across the network to the second edge node. A second VPI is obtained that defines a second path from the second edge node across the network to the first edge node. The first and second VPIs are selected by a routing status database. A first virtual channel identifier (VCI) within the first VPI is selected. A second virtual channel identifier (VCI) within the second VPI is selected. Data is transmitted from the first edge node to the second edge node using the first VPI and first VCI, and from the second edge node to the first edge node using the second VPI and second VCI. Switches adapted to carry out the method are also provided.
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