Merge "Start of some networking intro material"
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@ -9,12 +9,16 @@
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version="5.0"
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xml:id="intro-firewalls">
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<title>Firewalls</title>
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<para>
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Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken
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bresaola pork belly beef ribs ham hock capicola tail prosciutto
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landjaeger meatball pork loin. Swine turkey jowl, porchetta doner
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boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short
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ribs sirloin turducken pork belly boudin frankfurter chuck. Salami
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shankle bresaola cow filet mignon ham hock shank.
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</para>
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<para>A firewall is a network security system that controls the
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network traffic using a set of rules. For example, a firewall might
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disallow traffic originating from a range of IP addresses or only
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allow traffic on specific ports. Firewalls are often used between
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internal networks, where data is trusted, and external networks
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such as the Internet.</para>
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<para>Many firewalls incorporate Network Address Translation (NAT).
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Network address translation masks the IP addresses of the devices on
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the internal network, so that external devices see only the single
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public IP address of the device hosting the firewall.</para>
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</section>
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@ -9,12 +9,58 @@
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version="5.0"
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xml:id="intro-layers">
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<title>Networking layers</title>
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<para>
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Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken
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bresaola pork belly beef ribs ham hock capicola tail prosciutto
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landjaeger meatball pork loin. Swine turkey jowl, porchetta doner
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boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short
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ribs sirloin turducken pork belly boudin frankfurter chuck. Salami
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shankle bresaola cow filet mignon ham hock shank.
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</para>
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<para>Network communications is commonly described in terms of the OSI model,
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a seven-layer model that describes how various protocols and mechanisms fit
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together. Each layer depends on the protocols in the layer beneath it.</para>
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<variablelist>
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<varlistentry>
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<term>7 Application</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>6 Presentation</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>5 Session</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>4 Transport</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>3 Network</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>2 Data link</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>1 Physical</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>OpenStack Networking is primarily concerned with Layer 2 and Layer 3.</para>
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<para>Layer-3 protocols include the Internet Protocal Suite, which includes
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IPv4, IPv6, and the Internet Control Message Protocol (ICMP).</para>
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</section>
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@ -9,12 +9,9 @@
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version="5.0"
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xml:id="intro-routers">
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<title>Routers</title>
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<para>
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Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken
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bresaola pork belly beef ribs ham hock capicola tail prosciutto
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landjaeger meatball pork loin. Swine turkey jowl, porchetta doner
|
||||
boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short
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ribs sirloin turducken pork belly boudin frankfurter chuck. Salami
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shankle bresaola cow filet mignon ham hock shank.
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</para>
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<para>A router is a networking device that connects multiple networks
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together. Routers are connected to two or more networks. When they
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receive data packets, they use a routing table to determine which
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networks to pass the information to.</para>
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</section>
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@ -9,12 +9,9 @@
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version="5.0"
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xml:id="intro-switches">
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<title>Switches</title>
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<para>
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Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken
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bresaola pork belly beef ribs ham hock capicola tail prosciutto
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landjaeger meatball pork loin. Swine turkey jowl, porchetta doner
|
||||
boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short
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ribs sirloin turducken pork belly boudin frankfurter chuck. Salami
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shankle bresaola cow filet mignon ham hock shank.
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</para>
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<para>A switch is a device that is used to connect devices on a network.
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Switches forward packets on to other devices, using packet switching to
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pass data along only to devices that need to receive it. Switches operate
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at Layer 2 of the OSI model.</para>
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</section>
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@ -9,42 +9,44 @@
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version="5.0"
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xml:id="intro-tunnel">
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<title>Tunnel (segmentation) technologies</title>
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<para>
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Bacon ipsum dolor sit amet biltong meatloaf andouille, turducken
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bresaola pork belly beef ribs ham hock capicola tail prosciutto
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landjaeger meatball pork loin. Swine turkey jowl, porchetta doner
|
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boudin meatloaf. Shoulder capicola prosciutto, shank landjaeger short
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ribs sirloin turducken pork belly boudin frankfurter chuck. Salami
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shankle bresaola cow filet mignon ham hock shank.
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</para>
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<para>Tunneling allows one network protocol to encapsulate another
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payload protocol, such that packets from the payload protocol are
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passed as data on the delivery protocol. This can be used, for
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example, to pass data securely over an untrusted network.</para>
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<section xml:id="layer2config">
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<title>Layer 2</title>
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<variablelist>
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<varlistentry>
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<term>VLAN</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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<term>Virtual local area network (VLAN)</term>
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<listitem>
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<para>A VLAN paritions a single layer-2 network into multiple isolated
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broadcast domains.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</section>
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<section xml:id="layer3">
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<title>Layer 3</title>
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<variablelist>
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<varlistentry>
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<term>GRE</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>VLAN</term>
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<listitem>
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<para>FIXME</para>
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</listitem>
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</varlistentry>
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<variablelist>
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<varlistentry>
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<term>Generic routing encapsulation (GRE)</term>
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<listitem>
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<para>GRE carries IP packets with private IP address over the Internet
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using delivery packets with public IP addresses.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Virtual extensible local area network (VXLAN)</term>
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<listitem>
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<para>VXLAN encapsulates layer-2 Ethernet frames over layer-4
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UDP packets.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</section>
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</section>
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