公开(公告)号：DE69327692T2

公开(公告)日：2000-07-06

申请号：DE69327692

申请日：1993-08-24

Applicant: IBM

Inventor： AHMADI HAMID ,  GUERIN ROCH A ,  DERBY JEFFREY HASKELL ,  GUN LEVENT ,  MARIN GERALD ARNOLD ,  NAGHSHINEH MAMOUD ,  SOHRABY KHOSROW

IPC: H04L29/06 ,  H04L12/56

Abstract: A congestion control system for packet communications networks in which access to the network is controlled to prevent such congestion. Packets within the pre-specified statistical description of each packet source are marked as high priority ("green" packets) while packets exceeding the pre-specified characteristics are marked with a lower priority ("red" packets). The overall red packet rate is limited to prevent red packet saturation of the network. The introduction of red packets into the network is subjected to a degree of hysteresis to provide better interaction with higher layer error recovery protocols. The amount of hysteresis introduced into the red packet marking can be fixed or varied, depending on the statistics of the incoming data packets at the entry point to the network.

公开(公告)号：DE69327692D1

公开(公告)日：2000-03-02

申请号：DE69327692

申请日：1993-08-24

Applicant: IBM

Inventor： AHMADI HAMID ,  GUERIN ROCH A ,  DERBY JEFFREY HASKELL ,  GUN LEVENT ,  MARIN GERALD ARNOLD ,  NAGHSHINEH MAMOUD ,  SOHRABY KHOSROW

IPC: H04L29/06 ,  H04L12/56

Abstract: A congestion control system for packet communications networks in which access to the network is controlled to prevent such congestion. Packets within the pre-specified statistical description of each packet source are marked as high priority ("green" packets) while packets exceeding the pre-specified characteristics are marked with a lower priority ("red" packets). The overall red packet rate is limited to prevent red packet saturation of the network. The introduction of red packets into the network is subjected to a degree of hysteresis to provide better interaction with higher layer error recovery protocols. The amount of hysteresis introduced into the red packet marking can be fixed or varied, depending on the statistics of the incoming data packets at the entry point to the network.