openstack/openstack-manuals
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Start of some networking intro material

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Change-Id: I8470f522954801911a88134532bba7d54b7e489b
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Shaun McCance 2014-08-15 22:47:09 -04:00
parent a16447c990
commit 604c4b86a6
5 changed files with 103 additions and 57 deletions
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20
doc/networking-guide/section_intro-firewalls.xml
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@ -9,12 +9,16 @@
version="5.0" version="5.0"
xml:id="intro-firewalls"> xml:id="intro-firewalls">
<title>Firewalls</title> <title>Firewalls</title>
<para>
Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken <para>A firewall is a network security system that controls the
bresaola pork belly beef ribs ham hock capicola tail prosciutto network traffic using a set of rules. For example, a firewall might
landjaeger meatball pork loin. Swine turkey jowl, porchetta doner disallow traffic originating from a range of IP addresses or only
boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short allow traffic on specific ports. Firewalls are often used between
ribs sirloin turducken pork belly boudin frankfurter chuck. Salami internal networks, where data is trusted, and external networks
shankle bresaola cow filet mignon ham hock shank. such as the Internet.</para>
</para>
<para>Many firewalls incorporate Network Address Translation (NAT).
Network address translation masks the IP addresses of the devices on
the internal network, so that external devices see only the single
public IP address of the device hosting the firewall.</para>
</section> </section>

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doc/networking-guide/section_intro-layers.xml
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version="5.0" version="5.0"
xml:id="intro-layers"> xml:id="intro-layers">
<title>Networking layers</title> <title>Networking layers</title>
<para>
Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken <para>Network communications is commonly described in terms of the OSI model,
bresaola pork belly beef ribs ham hock capicola tail prosciutto a seven-layer model that describes how various protocols and mechanisms fit
landjaeger meatball pork loin. Swine turkey jowl, porchetta doner together. Each layer depends on the protocols in the layer beneath it.</para>
boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short
ribs sirloin turducken pork belly boudin frankfurter chuck. Salami <variablelist>
shankle bresaola cow filet mignon ham hock shank. <varlistentry>
</para> <term>7 Application</term>
<listitem>
<para>FIXME</para>
</listitem>
</varlistentry>
<varlistentry>
<term>6 Presentation</term>
<listitem>
<para>FIXME</para>
</listitem>
</varlistentry>
<varlistentry>
<term>5 Session</term>
<listitem>
<para>FIXME</para>
</listitem>
</varlistentry>
<varlistentry>
<term>4 Transport</term>
<listitem>
<para>FIXME</para>
</listitem>
</varlistentry>
<varlistentry>
<term>3 Network</term>
<listitem>
<para>FIXME</para>
</listitem>
</varlistentry>
<varlistentry>
<term>2 Data link</term>
<listitem>
<para>FIXME</para>
</listitem>
</varlistentry>
<varlistentry>
<term>1 Physical</term>
<listitem>
<para>FIXME</para>
</listitem>
</varlistentry>
</variablelist>
<para>OpenStack Networking is primarily concerned with Layer 2 and Layer 3.</para>
<para>Layer-3 protocols include the Internet Protocal Suite, which includes
IPv4, IPv6, and the Internet Control Message Protocol (ICMP).</para>
</section> </section>

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doc/networking-guide/section_intro-routers.xml
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version="5.0" version="5.0"
xml:id="intro-routers"> xml:id="intro-routers">
<title>Routers</title> <title>Routers</title>
<para>
Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken <para>A router is a networking device that connects multiple networks
bresaola pork belly beef ribs ham hock capicola tail prosciutto together. Routers are connected to two or more networks. When they
landjaeger meatball pork loin. Swine turkey jowl, porchetta doner receive data packets, they use a routing table to determine which
boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short networks to pass the information to.</para>
ribs sirloin turducken pork belly boudin frankfurter chuck. Salami
shankle bresaola cow filet mignon ham hock shank.
</para>
</section> </section>

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doc/networking-guide/section_intro-switches.xml
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version="5.0" version="5.0"
xml:id="intro-switches"> xml:id="intro-switches">
<title>Switches</title> <title>Switches</title>
<para>
Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken <para>A switch is a device that is used to connect devices on a network.
bresaola pork belly beef ribs ham hock capicola tail prosciutto Switches forward packets on to other devices, using packet switching to
landjaeger meatball pork loin. Swine turkey jowl, porchetta doner pass data along only to devices that need to receive it. Switches operate
boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short at Layer 2 of the OSI model.</para>
ribs sirloin turducken pork belly boudin frankfurter chuck. Salami
shankle bresaola cow filet mignon ham hock shank.
</para>
</section> </section>

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doc/networking-guide/section_intro-tunnel.xml
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version="5.0" version="5.0"
xml:id="intro-tunnel"> xml:id="intro-tunnel">
<title>Tunnel (segmentation) technologies</title> <title>Tunnel (segmentation) technologies</title>
<para>
Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken <para>Tunneling allows one network protocol to encapsulate another
bresaola pork belly beef ribs ham hock capicola tail prosciutto payload protocol, such that packets from the payload protocol are
landjaeger meatball pork loin. Swine turkey jowl, porchetta doner passed as data on the delivery protocol. This can be used, for
boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short example, to pass data securely over an untrusted network.</para>
ribs sirloin turducken pork belly boudin frankfurter chuck. Salami
shankle bresaola cow filet mignon ham hock shank.
</para>
<section xml:id="layer2config"> <section xml:id="layer2config">
<title>Layer 2</title> <title>Layer 2</title>
<variablelist> <variablelist>
<varlistentry> <varlistentry>
<term>VLAN</term> <term>Virtual local area network (VLAN)</term>
<listitem> <listitem>
<para>FIXME</para> <para>A VLAN paritions a single layer-2 network into multiple isolated
</listitem> broadcast domains.</para>
</listitem>
</varlistentry> </varlistentry>
</variablelist> </variablelist>
</section> </section>
<section xml:id="layer3"> <section xml:id="layer3">
<title>Layer 3</title> <title>Layer 3</title>
<variablelist> <variablelist>
<varlistentry>
<term>GRE</term> <varlistentry>
<listitem> <term>Generic routing encapsulation (GRE)</term>
<para>FIXME</para> <listitem>
</listitem> <para>GRE carries IP packets with private IP address over the Internet
</varlistentry> using delivery packets with public IP addresses.</para>
<varlistentry> </listitem>
<term>VLAN</term> </varlistentry>
<listitem>
<para>FIXME</para> <varlistentry>
</listitem> <term>Virtual extensible local area network (VXLAN)</term>
</varlistentry> <listitem>
<para>VXLAN encapsulates layer-2 Ethernet frames over layer-4
UDP packets.</para>
</listitem>
</varlistentry>
</variablelist> </variablelist>
</section> </section>
</section> </section>