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Slowly getting there.... :) Do not publish under any circumstances!!!!
Binh.
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@ -279,7 +279,7 @@ This is known as FDM, (Frequency Domain Multiplexing).
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Similar to FDM, WDM (Wavelength Division Multiplexing) uses each wavelength of light to
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transmit a signal. WDM is for fiber optic systems. The number of wavelengths per
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fiber, currently available, is about 300. Each wavelength can carry about 10Gbps.
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This makes 3Tbps. AT&T predict that up to 1024 wavelengths may be available in the future.
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This makes 3Tbps. AT&T predict that up to 1024 wavelengths may be available in the future.
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The hub/optical hub is clearly an analogue device - input signals are reflected to all
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outputs. It is also called passive, because it does not introduce any power to the signal
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@ -16,7 +16,7 @@
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<book>
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<bookinfo>
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<title>Linux Networking</title>
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<title>Linux Networking Study Guide</title>
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<subtitle>Version 0.05</subtitle>
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<pubdate>2004-10-02</pubdate>
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@ -41,10 +41,14 @@ tendency of people to dislike change. Hence, this document will cover the theory
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computer networking, as well as its use and implementation under Linux which is one of the
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more popular derivatives of Unix. It is meant to be distribution-independant and to be
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accessible to all members of the Linux community. However, a working knowledge of Linux as
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well as its CLI (Command Line Interface) is assumed. Please note that little consideration
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towards security is made. For such issues please consult other pieces of documentation such
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as those made available at the Linux Documentation Project, <ulink url="http://www.tldp.org"/>
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http://www.tldp.org</ulink>.
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well as its CLI (Command Line Interface) is assumed. Please note that this guide is not
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meant to be an all encompassing guide of networking under Linux and that little consideration
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towards security is made. It was only designed to provide an overview of this subject and
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For such issues please consult other pieces of documentation such
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as those made available at the Linux Documentation Project,
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<ulink url="http://www.tldp.org"/>http://www.tldp.org</ulink>.
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</para>
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</abstract>
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