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<H1>Linux Ethernet-HOWTO</H1>

<H2>di Paul Gortmaker</H2>v2.9, 25 Agosto 2003
<HR>
<EM>Questo &egrave; l'Ethernet Howto, una raccolta di informazioni su quali
dispositivi Ethernet possono essere usati con Linux e su come
configurarli. Si noti che questo Howto si concentra sull'aspetto
hardware e sui driver a basso livello delle schede Ethernet e non
tratta l'aspetto software di cose come <CODE>ifconfig</CODE> e <CODE>route</CODE>,
che sono coperte in svariati altri materiali di documentazione Linux.
Traduzione fino al 1999 a cura di Lorenza Romano (
<A HREF="mailto:titti@dei.unipd.it">titti@dei.unipd.it</A>) e Giovanni
Bortolozzo (
<A HREF="mailto:borto@pluto.linux.it">borto@pluto.it</A>), dopo il 1999 a cura di Federico Lucifredi
(
<A HREF="mailto:lucifred@fas.harvard.edu">lucifred@fas.harvard.edu</A>); revisione a cura di Claudio Cattazzo
<A HREF="mailto:claudio@pluto.it">claudio@pluto.it</A>.</EM>
<HR>
<P>
<H2><A NAME="toc1">1.</A> <A HREF="Ethernet-HOWTO-1.html">Introduzione</A></H2>

<UL>
<LI><A NAME="toc1.1">1.1</A> <A HREF="Ethernet-HOWTO-1.html#ss1.1">Nuove versioni di questo documento</A>
<LI><A NAME="toc1.2">1.2</A> <A HREF="Ethernet-HOWTO-1.html#ss1.2">Come usare l'Ethernet-Howto</A>
<LI><A NAME="toc1.3">1.3</A> <A HREF="Ethernet-HOWTO-1.html#ss1.3">Cosa devo fare per far funzionare una scheda Ethernet?</A>
<LI><A NAME="toc1.4">1.4</A> <A HREF="Ethernet-HOWTO-1.html#ss1.4">AIUTO - Non funziona!</A>
<LI><A NAME="toc1.5">1.5</A> <A HREF="Ethernet-HOWTO-1.html#ss1.5">Tipi di cavo che la propria scheda dovrebbe</A>
</UL>
<P>
<H2><A NAME="toc2">2.</A> <A HREF="Ethernet-HOWTO-2.html">Domande frequenti</A></H2>

<UL>
<LI><A NAME="toc2.1">2.1</A> <A HREF="Ethernet-HOWTO-2.html#ss2.1">Come spiego a Linux che driver usare?</A>
<LI><A NAME="toc2.2">2.2</A> <A HREF="Ethernet-HOWTO-2.html#ss2.2">Che scheda si dovrebbe acquistare per Linux?</A>
<LI><A NAME="toc2.3">2.3</A> <A HREF="Ethernet-HOWTO-2.html#ss2.3">Driver alpha -- come procurarseli e come usarli</A>
<LI><A NAME="toc2.4">2.4</A> <A HREF="Ethernet-HOWTO-2.html#ss2.4">Come usare pi&ugrave; di una scheda Ethernet per macchina</A>
<LI><A NAME="toc2.5">2.5</A> <A HREF="Ethernet-HOWTO-2.html#ss2.5">Il comando <CODE>ether=</CODE> non &egrave; servito a niente. Perch&eacute;?</A>
<LI><A NAME="toc2.6">2.6</A> <A HREF="Ethernet-HOWTO-2.html#ss2.6">Problemi con schede NE1000/NE2000 (e cloni)</A>
<LI><A NAME="toc2.7">2.7</A> <A HREF="Ethernet-HOWTO-2.html#ss2.7">Problemi con le schede SMC Ultra/EtherEZ e WD80*3 </A>
<LI><A NAME="toc2.8">2.8</A> <A HREF="Ethernet-HOWTO-2.html#ss2.8">Problemi con le schede 3Com</A>
<LI><A NAME="toc2.9">2.9</A> <A HREF="Ethernet-HOWTO-2.html#ss2.9">FAQ non specifiche ad una particolare scheda</A>
</UL>
<P>
<H2><A NAME="toc3">3.</A> <A HREF="Ethernet-HOWTO-3.html">Suggerimenti per migliorare le prestazioni</A></H2>

<UL>
<LI><A NAME="toc3.1">3.1</A> <A HREF="Ethernet-HOWTO-3.html#ss3.1">Concetti generali</A>
<LI><A NAME="toc3.2">3.2</A> <A HREF="Ethernet-HOWTO-3.html#ss3.2">Schede ISA e velocit&agrave; del bus ISA</A>
<LI><A NAME="toc3.3">3.3</A> <A HREF="Ethernet-HOWTO-3.html#ss3.3">Impostare la finestra TCP di ricezione (TCP Rx Window)</A>
<LI><A NAME="toc3.4">3.4</A> <A HREF="Ethernet-HOWTO-3.html#ss3.4">Incrementare le prestazioni NFS</A>
</UL>
<P>
<H2><A NAME="toc4">4.</A> <A HREF="Ethernet-HOWTO-4.html">Informazioni specifiche su produttori e modelli</A></H2>

<UL>
<LI><A NAME="toc4.1">4.1</A> <A HREF="Ethernet-HOWTO-4.html#ss4.1">3Com</A>
<LI><A NAME="toc4.2">4.2</A> <A HREF="Ethernet-HOWTO-4.html#ss4.2">Accton</A>
<LI><A NAME="toc4.3">4.3</A> <A HREF="Ethernet-HOWTO-4.html#ss4.3">Adaptec</A>
<LI><A NAME="toc4.4">4.4</A> <A HREF="Ethernet-HOWTO-4.html#ss4.4">Allied Telesyn/Telesis</A>
<LI><A NAME="toc4.5">4.5</A> <A HREF="Ethernet-HOWTO-4.html#ss4.5">AMD / Advanced Micro Devices</A>
<LI><A NAME="toc4.6">4.6</A> <A HREF="Ethernet-HOWTO-4.html#ss4.6">Ansel Communications</A>
<LI><A NAME="toc4.7">4.7</A> <A HREF="Ethernet-HOWTO-4.html#ss4.7">Apricot</A>
<LI><A NAME="toc4.8">4.8</A> <A HREF="Ethernet-HOWTO-4.html#ss4.8">Arcnet</A>
<LI><A NAME="toc4.9">4.9</A> <A HREF="Ethernet-HOWTO-4.html#ss4.9">Boca Research</A>
<LI><A NAME="toc4.10">4.10</A> <A HREF="Ethernet-HOWTO-4.html#ss4.10">Broadcom</A>
<LI><A NAME="toc4.11">4.11</A> <A HREF="Ethernet-HOWTO-4.html#ss4.11">Cabletron</A>
<LI><A NAME="toc4.12">4.12</A> <A HREF="Ethernet-HOWTO-4.html#ss4.12">Cogent</A>
<LI><A NAME="toc4.13">4.13</A> <A HREF="Ethernet-HOWTO-4.html#ss4.13">Compaq</A>
<LI><A NAME="toc4.14">4.14</A> <A HREF="Ethernet-HOWTO-4.html#ss4.14">Danpex</A>
<LI><A NAME="toc4.15">4.15</A> <A HREF="Ethernet-HOWTO-4.html#ss4.15">Davicom</A>
<LI><A NAME="toc4.16">4.16</A> <A HREF="Ethernet-HOWTO-4.html#ss4.16">D-Link</A>
<LI><A NAME="toc4.17">4.17</A> <A HREF="Ethernet-HOWTO-4.html#ss4.17">DFI</A>
<LI><A NAME="toc4.18">4.18</A> <A HREF="Ethernet-HOWTO-4.html#ss4.18">Digital / DEC</A>
<LI><A NAME="toc4.19">4.19</A> <A HREF="Ethernet-HOWTO-4.html#ss4.19">Farallon</A>
<LI><A NAME="toc4.20">4.20</A> <A HREF="Ethernet-HOWTO-4.html#ss4.20">Fujitsu</A>
<LI><A NAME="toc4.21">4.21</A> <A HREF="Ethernet-HOWTO-4.html#ss4.21">Hewlett Packard</A>
<LI><A NAME="toc4.22">4.22</A> <A HREF="Ethernet-HOWTO-4.html#ss4.22">IBM / International Business Machines</A>
<LI><A NAME="toc4.23">4.23</A> <A HREF="Ethernet-HOWTO-4.html#ss4.23">Schede Ethernet ICL</A>
<LI><A NAME="toc4.24">4.24</A> <A HREF="Ethernet-HOWTO-4.html#ss4.24">Schede Ethernet Intel</A>
<LI><A NAME="toc4.25">4.25</A> <A HREF="Ethernet-HOWTO-4.html#ss4.25">Kingston</A>
<LI><A NAME="toc4.26">4.26</A> <A HREF="Ethernet-HOWTO-4.html#ss4.26">LinkSys</A>
<LI><A NAME="toc4.27">4.27</A> <A HREF="Ethernet-HOWTO-4.html#ss4.27">Microdyne (Eagle)</A>
<LI><A NAME="toc4.28">4.28</A> <A HREF="Ethernet-HOWTO-4.html#ss4.28">Mylex</A>
<LI><A NAME="toc4.29">4.29</A> <A HREF="Ethernet-HOWTO-4.html#ss4.29">Myson</A>
<LI><A NAME="toc4.30">4.30</A> <A HREF="Ethernet-HOWTO-4.html#ss4.30">National Semiconductor</A>
<LI><A NAME="toc4.31">4.31</A> <A HREF="Ethernet-HOWTO-4.html#ss4.31">Novell Ethernet, NExxxx e cloni associati</A>
<LI><A NAME="toc4.32">4.32</A> <A HREF="Ethernet-HOWTO-4.html#ss4.32">Netgear</A>
<LI><A NAME="toc4.33">4.33</A> <A HREF="Ethernet-HOWTO-4.html#ss4.33">Proteon</A>
<LI><A NAME="toc4.34">4.34</A> <A HREF="Ethernet-HOWTO-4.html#ss4.34">Pure Data</A>
<LI><A NAME="toc4.35">4.35</A> <A HREF="Ethernet-HOWTO-4.html#ss4.35">Racal-Interlan</A>
<LI><A NAME="toc4.36">4.36</A> <A HREF="Ethernet-HOWTO-4.html#ss4.36">RealTek</A>
<LI><A NAME="toc4.37">4.37</A> <A HREF="Ethernet-HOWTO-4.html#ss4.37">Sager</A>
<LI><A NAME="toc4.38">4.38</A> <A HREF="Ethernet-HOWTO-4.html#ss4.38">Schneider &amp; Koch</A>
<LI><A NAME="toc4.39">4.39</A> <A HREF="Ethernet-HOWTO-4.html#ss4.39">SEEQ</A>
<LI><A NAME="toc4.40">4.40</A> <A HREF="Ethernet-HOWTO-4.html#ss4.40">SiS (Silicon Integrated Systems) </A>
<LI><A NAME="toc4.41">4.41</A> <A HREF="Ethernet-HOWTO-4.html#ss4.41">SMC (Standard Microsystems Corp.) </A>
<LI><A NAME="toc4.42">4.42</A> <A HREF="Ethernet-HOWTO-4.html#ss4.42">Sundance</A>
<LI><A NAME="toc4.43">4.43</A> <A HREF="Ethernet-HOWTO-4.html#ss4.43">SysKonnect</A>
<LI><A NAME="toc4.44">4.44</A> <A HREF="Ethernet-HOWTO-4.html#ss4.44">Texas Instruments</A>
<LI><A NAME="toc4.45">4.45</A> <A HREF="Ethernet-HOWTO-4.html#ss4.45">Thomas Conrad</A>
<LI><A NAME="toc4.46">4.46</A> <A HREF="Ethernet-HOWTO-4.html#ss4.46">VIA</A>
<LI><A NAME="toc4.47">4.47</A> <A HREF="Ethernet-HOWTO-4.html#ss4.47">Western Digital</A>
<LI><A NAME="toc4.48">4.48</A> <A HREF="Ethernet-HOWTO-4.html#ss4.48">Winbond</A>
<LI><A NAME="toc4.49">4.49</A> <A HREF="Ethernet-HOWTO-4.html#ss4.49">Xircom</A>
<LI><A NAME="toc4.50">4.50</A> <A HREF="Ethernet-HOWTO-4.html#ss4.50">Zenith</A>
<LI><A NAME="toc4.51">4.51</A> <A HREF="Ethernet-HOWTO-4.html#ss4.51">Znyx</A>
<LI><A NAME="toc4.52">4.52</A> <A HREF="Ethernet-HOWTO-4.html#ss4.52">Identificare una scheda sconosciuta</A>
<LI><A NAME="toc4.53">4.53</A> <A HREF="Ethernet-HOWTO-4.html#ss4.53">Driver per i dispositivi non Ethernet</A>
</UL>
<P>
<H2><A NAME="toc5">5.</A> <A HREF="Ethernet-HOWTO-5.html">Cavi, coassiali, doppini intrecciati</A></H2>

<UL>
<LI><A NAME="toc5.1">5.1</A> <A HREF="Ethernet-HOWTO-5.html#ss5.1">Thin Ethernet (thinnet)</A>
<LI><A NAME="toc5.2">5.2</A> <A HREF="Ethernet-HOWTO-5.html#ss5.2">Doppino intrecciato (twisted pair)</A>
</UL>
<P>
<H2><A NAME="toc6">6.</A> <A HREF="Ethernet-HOWTO-6.html">Configurazione del software e diagnotici</A></H2>

<UL>
<LI><A NAME="toc6.1">6.1</A> <A HREF="Ethernet-HOWTO-6.html#ss6.1">Programmi di configurazione per le schede Ethernet</A>
<LI><A NAME="toc6.2">6.2</A> <A HREF="Ethernet-HOWTO-6.html#ss6.2">Programmi diagnostici per schede Ethernet</A>
</UL>
<P>
<H2><A NAME="toc7">7.</A> <A HREF="Ethernet-HOWTO-7.html">Informazioni tecniche</A></H2>

<UL>
<LI><A NAME="toc7.1">7.1</A> <A HREF="Ethernet-HOWTO-7.html#ss7.1">I/O programmato, memoria condivisa e DMA a confronto</A>
<LI><A NAME="toc7.2">7.2</A> <A HREF="Ethernet-HOWTO-7.html#ss7.2">Implicazioni della Larghezza di Bus per le Prestazioni</A>
<LI><A NAME="toc7.3">7.3</A> <A HREF="Ethernet-HOWTO-7.html#ss7.3">Impatto sulle prestazioni di Zero Copy</A>
<LI><A NAME="toc7.4">7.4</A> <A HREF="Ethernet-HOWTO-7.html#ss7.4">Impatto sulle Prestazioni dei Checksum in Hardware</A>
<LI><A NAME="toc7.5">7.5</A> <A HREF="Ethernet-HOWTO-7.html#ss7.5">Impatto sulle Prestazioni del NAPI (Rx interrupt mitigation)</A>
</UL>
<P>
<H2><A NAME="toc8">8.</A> <A HREF="Ethernet-HOWTO-8.html">Miscellanea</A></H2>

<UL>
<LI><A NAME="toc8.1">8.1</A> <A HREF="Ethernet-HOWTO-8.html#ss8.1">Buffer FIFO di Trasmissione ed Errori di Underrun</A>
<LI><A NAME="toc8.2">8.2</A> <A HREF="Ethernet-HOWTO-8.html#ss8.2">Passare al kernel argomenti Ethernet</A>
<LI><A NAME="toc8.3">8.3</A> <A HREF="Ethernet-HOWTO-8.html#ss8.3">Usare un driver Ethernet come modulo</A>
<LI><A NAME="toc8.4">8.4</A> <A HREF="Ethernet-HOWTO-8.html#ss8.4">Documentazione correlata</A>
<LI><A NAME="toc8.5">8.5</A> <A HREF="Ethernet-HOWTO-8.html#ss8.5">Liberatoria e copyright (in originale inglese)</A>
<LI><A NAME="toc8.6">8.6</A> <A HREF="Ethernet-HOWTO-8.html#ss8.6">Chiusura</A>
</UL>
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