8f7d1bd81a
This begins the install guide chapter for neutron, and cleans up some sections from the guide that will not be used even as references. * hypervisor_selection - not relevant for the adventure where the choice is done prior, and makes some difficult value judgement statemtnts * scripted ubuntu install - not the purpose of this guide and old content that isn't helpful for the rewrite * image-troubleshooting - empty section, belongs in cloud-admin-guide anyway * vnc-console - already in image_install * identity_config_keystone - already better done in individual sections * install nova-volume - very dated content, already in cinder install * basic install files - no longer needed for reference Change-Id: I1979eeba091c7118db7cc30ad7c66f30345fe49d
46 lines
2.3 KiB
XML
46 lines
2.3 KiB
XML
<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0"
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xml:id="networking-service-overview">
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<title>Networking Service Overview</title>
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<para>Provides network-connectivity-as-a-service between
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interface devices that are managed by other OpenStack
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services, usually Compute. Enables users to create and attach
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interfaces to networks. Like many OpenStack services,
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OpenStack Networking is highly configurable due to its plug-in
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architecture. These plug-ins accommodate different networking
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equipment and software. Consequently, the architecture and
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deployment vary dramatically.</para>
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<para>Includes the following components:</para>
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<itemizedlist>
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<listitem>
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<para><systemitem class="service"
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>neutron-server</systemitem>. Accepts and routes API
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requests to the appropriate OpenStack Networking plug-in
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for action.</para>
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</listitem>
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<listitem>
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<para>OpenStack Networking plug-ins and agents. Plugs and
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unplugs ports, creates networks or subnets, and provides
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IP addressing. These plug-ins and agents differ depending
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on the vendor and technologies used in the particular
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cloud. OpenStack Networking ships with plug-ins and agents
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for Cisco virtual and physical switches, Nicira NVP
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product, NEC OpenFlow products, Open vSwitch, Linux
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bridging, and the Ryu Network Operating System.</para>
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<para>The common agents are L3 (layer 3), DHCP (dynamic host
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IP addressing), and a plug-in agent.</para>
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</listitem>
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<listitem>
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<para>Messaging queue. Most OpenStack Networking
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installations make use of a messaging queue to route
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information between the neutron-server and various agents
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as well as a database to store networking state for
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particular plug-ins.</para>
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</listitem>
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</itemizedlist>
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<para>OpenStack Networking interacts mainly with OpenStack
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Compute, where it provides networks and connectivity for its
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instances.</para>
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</section>
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