46 lines
1.9 KiB
HTML
46 lines
1.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
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<!--Converted with LaTeX2HTML 96.1-c (Feb 29, 1996) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds -->
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<HTML>
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<HEAD>
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<TITLE>Tuning the Transmission Protocol</TITLE>
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</HEAD>
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<BODY LANG="EN">
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<A HREF="node1.html"><IMG WIDTH=65 HEIGHT=24 ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <BR>
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<B> Next:</B> <A HREF="node183.html">Selecting Specific Protocols</A>
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<B>Up:</B> <A HREF="node180.html">UUCP Low-Level Protocols</A>
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<B> Previous:</B> <A HREF="node181.html">Protocol Overview</A>
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<BR> <P>
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<H2><A NAME="SECTION0014620000">Tuning the Transmission Protocol</A></H2>
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<P>
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<A NAME="6469"></A>
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<P>
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All protocols allow for some variation in packet sizes, timeouts, and
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the like. Usually, the defaults provided work well under standard
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circumstances, but may not be optimal for your situation. The <em>g</em>
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protocol, for instance, uses window sizes from 1 to 7, and packet sizes
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in powers of 2 ranging from 64 through 4096.<A HREF="footnode.html#6627"><IMG ALIGN=BOTTOM ALT="gif" SRC="foot_motif.gif"></A> If your telephone line is usually so noisy that it drops more than
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5 percent all packets, you should probably lower the packet size and
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shrink the window. On the other hand, on very good telephone lines
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the protocol overhead of sending ACKs for every 128 bytes may prove
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wasteful, so that you might increase the packet size to 512 or even
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1024.
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<P>
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Taylor UUCP provides a mechanism to suit your needs by tuning these
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parameters with the protocol-parameter command in the
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sys file. For instance, to set the <em>g</em>-protocol's packet
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size to 512 when talking to pablo, you have to add:
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<P>
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<P><P>
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<P>
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The tunable parameters and their names vary from protocol to protocol.
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For a complete list of them please refer to the documentation enclosed
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in the Taylor UUCP source.
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<P>
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<BR> <HR>
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<P><ADDRESS>
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<I>Andrew Anderson <BR>
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Thu Mar 7 23:22:06 EST 1996</I>
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</ADDRESS>
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</BODY>
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</HTML>
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