Updating 003 rack system firmware initializing controllers
The degree by which such latencies can be reduced, as well as the degree by which the size and cost of a multichip system can be reduced, are also fundamentally limited.Ethernet is a network protocol embodying IEEE standard 802.3, which is more generically referred to as Carrier Sense with Multiple Access and Carrier Detect (CSMA/CD).ATM networks are relatively new, and the nature and patterns which congestion can take are not well understood.This makes it difficult to formulate and implement an effective congestion control algorithm.An adaptive error detection and correction apparatus for an Asynchronous Transfer Mode (ATM) network device comprises a sensing unit for sensing a congestion condition in the ATM network and a global pacing rate unit for adaptively reducing a maximum allowable transmission ratio of ATM cells containing information to idle ATM cells in response to a sensed congestion condition.A processor stores a number corresponding to a relatively high maximum allowable transmission ratio in the global pacing rate register in the absence of a sensed congestion condition, and stores a number corresponding to a relatively low maximum allowable transmission ratio in the global pacing rate register in response to a sensed congestion condition.
In addition, multiple latencies are present in the various paths by which data moves through the unit.The processor further comprises means for assigning the counters to selected CD-PDUs, and sensing the counters to determine whether or not segmentation of said selected CD-PDUs is within the respective service intervals.The apparatus further comprises a channel group credit register having bits corresponding to the respective counters. Field of the Invention The present invention generally relates to the art of error detection and fault recovery in electronic data systems, and more specifically to an adaptive error error detection and correction apparatus for an Asynchronous Transfer Mode (ATM) network device. Description of the Related Art Electronic data networks are becoming increasing widespread for the communication of divergent types of data including computer coded text and graphics, voice and video.However, if too many users attempt to inject too much data into the network simultaneously, the bandwidth of the network can be exceeded resulting in substantial delays in data transmission, transmission errors and lost data.Congestion is controlled by sensing the traffic in the network at the various nodes, sending special information packets between nodes to notify the other nodes of the magnitude and type of congestion, and delaying transmission of data at specified nodes in accordance with a predetermined congestion control algorithm.