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add a paragraph that should have been there

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svn:r781
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Roger Dingledine 2003-11-10 23:10:42 +00:00
parent 1969c8a92f
commit 1c37f631ff
1 changed files with 6 additions and 1 deletions
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doc/tor-design.tex
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@ -936,7 +936,7 @@ reaches 0, it stops reading from streams destined for that OR.
\textbf{Stream-level throttling}:
The stream-level congestion control mechanism is similar to the
circuit-level mechanism above. ORs and OPs use \emph{relay sendme} cells
circuit-level mechanism. ORs and OPs use \emph{relay sendme} cells
to implement end-to-end flow control for individual streams across
circuits. Each stream begins with a packaging window (currently 500 cells),
and increments the window by a fixed value (50) upon receiving a \emph{relay
@ -950,6 +950,11 @@ Currently, non-data relay cells do not affect the windows. Thus we
avoid potential deadlock issues, for example, arising because a stream
can't send a \emph{relay sendme} cell when its packaging window is empty.
These arbitrarily chosen parameters
%are probably not optimal; more
%research remains to find which parameters
seem to give tolerable throughput and delay; more research remains.
\Section{Other design decisions}
\SubSection{Resource management and denial-of-service}