'''Blue'''<ref>W. Feng, D.{{Citation Kandlur, D. Saha, K. Shin. ''Blue|title=BLUE: A New Class of Active Queue Management Algorithms |author1=Wu-chang Feng |author2=Dilip D.''UKandlur |author3=Debanjan Saha |author4=Kang G. MichiganShin |year=1999 |month=April |url=http://www.eecs.umich.edu/techreports/cse/99/CSE-TR-387-99,.pdf |journal=U. AprilMichigan 1999.Computer Science Technical Report |issue=CSE-TR-387-99 |accessdate=2010-12-22}}</ref> is an [[Active Queue Management]] algorithm. Like [[Random early detection|RED]], it operates by randomly dropping or [[Explicit Congestion Notification|ECN]]-marking packets in a router's queue before it overflows. Unlike RED, however, it requires little or no tuning on the part of the network administrator.
