Quality of Future Internet Services : Second COST 263 International Workshop QofIS 2001 Coimbra Portugal September 24–26 2001 Proceedings This book constitutes the refereed proceedings of the Second International Workshop on Quality of Future Internet Services QofIS 2001 organized by the European COST Action 263 in Coimbra Portugal in September 2001. The 22 revised full papers presented were carefully selected during a competitive reviewing process from a total of 87 submissions. The book offers topical sections on quality of service for multimedia communication admission control QoS routing differentiated services networks QoS monitoring and mapping and traffic engineering