Packet dropping schemes

Linux Advanced Routing and Traffic Control

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There are a VERY large number of packet dropping
schemes in existence, of which some have been
implemented for Linux and others have implementations
in Open Source environments that could probably be
ported.

I thought I'd be a nuisance and list the schemes I
know of and the status (as far as I know it). What I
would like is if people who (a) know of
implementations that should be here could add them,
and (b) know of compelling reasons why a scheme should
NEVER (or almost never) be used could give the reason.

The problem I'm having is that with 17 different
schemes, I can only find Open Source implementations
of three, and one of those is only for *BSDs. If for
no other reason than Linux makes network research
relatively trivial, I have to believe that the other
algorithms are either in public patches that hardly
anyone knows about, OR there is a catastrophic flaw of
some kind that makes using them in a general-purpose
OS a Really Bad Idea.

So, where are they and/or what is the problem with
them?


RED (Implemented as a queue)
Generic RED (Implemented as a queue)
Stabilized RED
Fair RED
Adaptive RED
Gentle RED
Exponential RED
RED+
BLUE (BSD implementation)
Stocchastic BLUE
BLACK
GREEN
PURPLE
WHITE
CHOKe
MAFIC
HAWK

(For those who have got this far, MAFIC and HAWK are
intrusion/attack countermeasure dropping schemes and
look very intriguing.)


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