Patents Examined by Shick Hoan
  • Communication switch including input bandwidth throttling to reduce output congestion
    Patent number: 6667985
    Abstract: A network switch maintains transmit queues and for each transmit queue a table which identifies the contributions of traffic received at the ingress ports to that queue. When a queue is too long, a pause frame is dispatched from a selected one of the ingress ports. The ingress port may be selected as that making the greatest contribution to the transmit queue. However, a control algorithm allows ports carrying high priority traffic to be excluded from the selection.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: December 23, 2003
    Assignee: 3Com Technologies
    Inventor: Justin A Drummond-Murray