Asynchronous transfer mode switching system capable of reducing capacity of management table
US5521917A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1995 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Mar 3, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/563
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an ATM (asynchronous transfer mode) switching system, a memory capacity of an ATM switch control information management table is reduced without any limitation in values of VPI and VCI even when a total number of these VPI and VCI is restricted. In this ATM switching system, a resource management unit 12 announces resource hunt information containing the VPI and the VCI to a call control unit, and further hunts a connection ID (identification) number via a switch control unit from a connection ID management table during a call-originating resource hunting operation. When the call control unit requests the switch control unit 13 to make a connection of an ATM switch at a call-originating side, or a call-terminating side, the call control unit designates this connection ID number together with these VPI and VCI. The switch control unit sets control information containing the VPI and the VCI to an ATM switch control information management table while using this connection ID number as key information, whereby this switch control unit controls the path connection of the ATM switch. As a result, the ATM switch control information management table may require such a memory capacity eq…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.