hi, ns users I must simulate ECN without RED. but can't find it. ECN should be used with RED always? thanks in advance. cheers! _________________________________________________________________ MSN Explorer�� ������ Hotmail ����� �ξ� ������ ���ϴ�. ���� http://explorer.msn.co.kr/ ���� ����� �ٿ�ε��ϼ���.