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            4 cabling</i></a>, <a href="c.html#REF24442"><i>Category
            5 cabling</i></a>, and <a href="u.html#REF38586"><i>UTP</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EIA/TIA-606</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">Administration standard for the
            telecommunications infrastructure of commercial buildings. It
            includes the following administration areas: terminations, media,
            pathways, spaces, and bounding and grounding.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EIGRP</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF36190"><i>Enhanced
            IGRP</i></a>.<br>
            </font></dd>
        </dl>
        <p><a name="REF31821"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EIP</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><strong><font size="2" face="Arial">Ethernet Interface Processor</font></strong><font size="2" face="Arial">.
            Interface processor card on the Cisco 7000 series routers. The EIP
            provides high-speed (10-Mbps) AUI ports that support Ethernet
            Version 1 and Ethernet Version 2 or IEEE 802.3 interfaces, and a
            high-speed data path to other interface processors.<br>
            </font></dd>
        </dl>
        <p><a name="REF17465"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EISA</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><strong><font size="2" face="Arial">Extended Industry-Standard
            Architecture</font></strong><font size="2" face="Arial">. 32-bit bus
            interface used in PCs, PC-based servers, and some UNIX workstations
            and servers. See also <a href="i.html#REF41676"><i>ISA</i></a>.<br>
            </font></dd>
        </dl>
        <p><a name="REF14842"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">ELAN</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><strong><font size="2" face="Arial">Emulated LAN</font></strong><font size="2" face="Arial">.
            ATM network in which an Ethernet or Token Ring LAN is emulated using
            a client-server model. ELANs are composed of an LEC, an LES, a BUS,
            and an LECS. Multiple ELANs can exist simultaneously on a single ATM
            network. ELANs are defined by the LANE specification. See also <a href="b.html#REF28937"><i>BUS</i></a>,
            <a href="l.html#REF23533"><i>LANE</i></a>,
            <a href="l.html#REF38895"><i>LEC</i></a>,
            <a href="l.html#REF18787"><i>LECS</i></a>,
            and <a href="l.html#REF30215"><i>LES</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">electromagnetic interference</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF36533"><i>EMI</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">electromagnetic pulse</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF29653"><i>EMP</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">electrically erasable programmable
        read-only memory</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF24343"><i>EEPROM</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">electronic data interchange</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF22933"><i>EDI</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">Electronic Data Interchange for
        Administration, Commerce, and Transport</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF39645"><i>EDIFACT</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">Electronic Industries Association</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF23184"><i>EIA</i></a>.<br>
            </font></dd>
        </dl>
        <p><a name="REF17260"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">electronic mail</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">Widely used network application in
            which mail messages are transmitted electronically between end users
            over various types of networks using various network protocols.
            Often called <i>e-mail</i>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">Electronic Messaging Association</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF31041"><i>EMA</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">electrostatic discharge</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF40893"><i>ESD</i></a>.<br>
            </font></dd>
        </dl>
        <p><a name="REF31041"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EMA</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">1. <strong>Enterprise Management
            Architecture</strong>. Digital Equipment Corporation network
            management architecture, based on the OSI network management model.<br>
            2. <strong>Electronic Messaging Association</strong>. Forum devoted
            to standards and policy work, education, and development of
            electronic messaging systems such as electronic mail, voice mail,
            and facsimile.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">e-mail</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF17260"><i>electronic
            mail</i></a>.<br>
            </font></dd>
        </dl>
        <p><a name="REF36533"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EMI</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><strong><font size="2" face="Arial">Electromagnetic interference</font></strong><font size="2" face="Arial">.
            Interference by electromagnetic signals that can cause reduced data
            integrity and increased error rates on transmission channels.<br>
            </font></dd>
        </dl>
        <p><a name="REF27858"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EMIF</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><strong><font size="2" face="Arial">ESCON Multiple Image Facility</font></strong><font size="2" face="Arial">.
            Mainframe I/O software function that allows one ESCON channel to be
            shared among multiple logical partitions on the same mainframe. See
            also <a href="e.html#REF28094"><i>ESCON</i></a>.<br>
            </font></dd>
        </dl>
        <p><a name="REF29653"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EMP</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><strong><font size="2" face="Arial">Electromagnetic pulse</font></strong><font size="2" face="Arial">.
            Caused by lightning and other high-energy phenomena. Capable of
            coupling enough energy into unshielded conductors to destroy
            electronic devices. See also <a href="t.html#REF20642"><i>Tempest</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">emulated LAN</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">See <a href="e.html#REF14842"><i>ELAN</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">emulation mode</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">Function of an NCP that enables it to
            perform activities equivalent to those performed by a transmission
            control unit. For example, with CiscoWorks, the NetView PU 2
            emulates the IBM 3274.<br>
            </font></dd>
        </dl>
        <p><a name="REF38054"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">EN</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><strong><font size="2" face="Arial">End node</font></strong><font size="2" face="Arial">.
            APPN end system that implements the PU 2.1, provides end-user
            services, and supports sessions between local and remote CPs. ENs
            are not capable of routing traffic and rely on an adjacent NN for
            APPN services. Compare with <a href="n.html#REF16823"><i>NN</i></a>.
            See also <a href="c.html#REF21251"><i>CP</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">enable-password</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">Command used to restrict access to the
            privileged EXEC mode.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">enable-secret</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">Password from the System Configuration
            Dialog to setup global parameters uses a Cisco-proprietary
            encryption process to alter the password character string.<br>
            </font></dd>
        </dl>
        <p><a name="REF31793"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">encapsulation</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">The wrapping of data in a particular
            protocol header. For example, Ethernet data is wrapped in a specific
            Ethernet header before network transit. Also, when bridging
            dissimilar networks, the entire frame from one network is simply
            placed in the header used by the data link layer protocol of the
            other network. See also <a href="t.html#REF21317"><i>tunneling</i></a>.<br>
            </font></dd>
        </dl>
        <p><a name="REF42490"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">encapsulation
        bridging</font></b></a><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">Carries Ethernet frames from one
            router to another across disparate media, such as serial and FDDI
            lines. Contrast with <a href="t.html#REF41335"><i>translational
            bridging</i></a>.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">encoder</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">Device that modifies information into
            the required transmission format.<br>
            </font></dd>
        </dl>
        <p><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">encoding</font></b><font size="2" face="Arial"><br>
        </font>
        <dl>
          <dd><font size="2" face="Arial">Process by which bits are represented
            by voltages.<br>
            </font></dd>
        </dl>
        <p><a name="REF11580"><img border="0" src="../../images/bullet.gif" width="17" height="12"><b><font size="2" face="Arial">encryption</font></b></a><font size="2" face="Arial"><br>