<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML DIR="LTR"><HEAD> <META HTTP-EQUIV="Content-Type" Content="text/html; charset=Windows-1252"> <TITLE>ATM Component Description</TITLE> <style type="text/css">@import url(td.css);</style></HEAD> <BODY TOPMARGIN="0"> <H1><A NAME="atm_component_description"></A><SUP></SUP>ATM Component Description</H1> <P>The asynchronous transfer mode (ATM) component contains networking support using ATM devices. There are four ATM communication modes: <UL type="disc"> <LI>Using local area network (LAN) emulation, known as ATMLANE. This is the mode typically used in corporate LANs.</li> <LI>Using Ethernet-permanent virtual circuit (PVC), known as ATMEPVC. This is used in certain ATM-DSL deployments.</li> <LI>Using Classical Internet Protocols (IP) over ATM, known as ATMARPC and ATMARPS. This is an alternative LAN technique suitable for IP-only networks.</li> <LI>Using Winsock over raw ATM connections. This is used for special purpose applications .</li> </UL> <H1>Component Configuration</H1> <P>ATMLANE, ATMARPC, ATMARPS and Winsock do not require configuration when used over ATM.</P> <P>The following table shows the settings for Ethernet-PVC configurations.</P> <P class="fineprint"></P> <TABLE> <TR VALIGN="top"> <TH width=23%>Property/setting name</TH> <TH width=13%>Default setting</TH> <TH width=34%>Description</TH> <TH width=15%>Property example </TH> <TH width=15%>Setting example </TH> </TR> <TR VALIGN="top"> <TD width=23%>VPI</TD> <TD width=13%>0</TD> <TD width=34%>The virtual path identifier for the PVC on which the driver operates.</TD> <TD width=15%>VPI</TD> <TD width=15%>1</TD> </TR> <TR VALIGN="top"> <TD width=23%>VCI</TD> <TD width=13%>0</TD> <TD width=34%>The virtual circuit identifier for the PVC.</TD> <TD width=15%>VCI</TD> <TD width=15%>100</TD> </TR> <TR VALIGN="top"> <TD width=23%>Encap</TD> <TD width=13%>2</TD> <TD width=34%>Defines the encapsulation used for data transfer. Possible values are: <P>0 – IPv4</P> <P>1 – IPv4 LLC/SNAP</P> <P>2 – Ethernet</P> <P>3 – Ethernet LLC/SNAP</P> </TD> <TD width=15%>Encap</TD> <TD width=15%>1</TD> </TR> </TABLE><BR> <P class="fineprint"></P> <H1>Special Notes</H1> <P>ATM networks commonly use only one of the four possible operation modes listed above.</P> <H1>Links for Further Information</H1> <P>For more information on ATM technology, see this <A HREF="http://www.microsoft.com/hwdev">Microsoft Web site</A>.</P> </BODY> </HTML>