| 摘要 |
PURPOSE: A method for routing and distributing a signal message in an ATM exchange is provided to minimize a segmentation phenomenon of a band and an inequality in distribution of a signal message without affecting an existing routing by constructing a routing field of an initial address message of a BISUP on the basis of a VCI value obtained from a result of VPI/VCI resource allocation for a user data routing. CONSTITUTION: A VPCI and a VPI routing to a corresponding destination point are determined. Resource are allocated(41) and SLS = VCO ,module 16(42), which results from the fact that the VCI value for transmitting a user data in an ATM network is allocated while being increased by connections. Since SLS is allocated so that SLS = VCI module 16 on the basis of a VCI value obtained according to the result of VPI/VCI resource allocation, rather than allocating the SLS on the basis of a VPCI value, there is no restriction in routing. In addition, starting from '32,', the VCI is allocated by being increased by '1', every signal link can be evenly used regardless of activation of a signal link in an MTP-3, so that the signal message distribution is effectively made. The VCI module 16 generates the SLS in the form of 0, 1, 2, 3, 4,..., 15 so that load distribution can be made between signal links of the MPT-3. Accordingly, the ATM exchange can operate without restriction in the existing routing even at the general VP band without an additional hardware or software.
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