In the proposed flow control method for abr service in atm networks , by introduction of delay factors , the cell transmission rate for abr traffic with different rtd are adjusted differently when the surplus bandwidth varies , and the rate variation amplitude for the short rtd traffic will be enlargeed while one for the long rtd traffic will be lessened , compared with erica 改進的erica算法加入時延因子,使在連接中具有不同時延的用戶在剩余帶寬變化時,速率的調整具有不同反應,時延大的反應較遲鈍,時延小的反應較敏感。改進算法使得小時延信源能更快的適應帶寬的變化,緩解了由于大時延信源速率調整的滯后而無法及時解除擁塞的現(xiàn)象。