Apparatus and method of processing bandwidth requirements in an ATM switch
Patent 5577035 Issued on November 19, 1996. Estimated Expiration Date: 
March 22, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 22, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesBandwidth management and congestion control scheme for multicast ATM networks Broadband input buffered ATM switch Virtual network using asynchronous transfer mode ATM communication system with interrogation of output port servers for available handing capacity Large capacity ATM switch Patent #: 5475679 InventorsAssigneeApplicationNo. 408344 filed on 03/22/1995US Classes:370/395.4, Assigning period of time for information to be transmitted (e.g., scheduling)370/412, Queuing arrangement370/468Assignment of variable bandwidth or time period for transmission or receptionExaminersPrimary: Marcelo, MelvinAttorney, Agent or FirmForeign Patent References
International ClassH04L 012/56Foreign Application Priority Data1994-03-23 GBAbstractAn ATM communication system including an ATM switch having input and output ports is provided. Each input port is fed from an input port server and each of the output ports are arranged to feed an output port server. The input port servers include buffer stores, one for each of the output ports, to which data is transmitted through the switch. Each buffer store in the input port servers is arranged to interrogate the output ports server, with which it communicates before the transmission of data, to determine whether the output port server data handling capacity is available. The ATM communication system includes a transmitting devices for unicast traffic and multicast traffic. The transmitting device includes an output time slot control device and a scheduling device arranged to allocate a time slot for the transmission of each unicast traffic cell, and for calculating when a time slot is available for transmission of a multicast traffic cell. The output time slot control device includes a store for storing information identifying the time slot and for reserving that time slot for the transmission of a multicast traffic cell. | |
