openstack/openstack-manuals
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Fix capitalization and markup.

Change-Id: I38a4a20cf9830fa07c769c34eb1ffd7578948317
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Andreas Jaeger 2014-08-07 20:28:18 +02:00
parent 5659c36a2b
commit 32e98f5045
4 changed files with 87 additions and 38 deletions
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4
doc/arch-design/ch_compute_focus.xml
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@ -31,13 +31,13 @@
<para>Platform-as-a-Service (PaaS)</para>
</listitem>
<listitem>
<para>Signal processing for Network Function Virtualization (NFV)</para>
<para>Signal processing for network function virtualization (NFV)</para>
</listitem>
</itemizedlist>
<para>Based on the use case requirements, such clouds might need to provide
additional services such as a virtual machine disk library, file or object
storage, firewalls, load balancers, IP addresses, and network connectivity
in the form of overlays or virtual Local Area Networks (VLANs). A
in the form of overlays or virtual local area networks (VLANs). A
compute-focused OpenStack cloud will not typically use raw block storage
services since the applications hosted on a compute-focused OpenStack
cloud generally do not need persistent block storage.</para>

61
doc/arch-design/ch_network_focus.xml
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@ -10,16 +10,18 @@
network communication in order to function properly due to a
service-based nature. In some cases, however, use cases
dictate that the network is elevated beyond simple
infrastructure. This section is a discussion of architectures
infrastructure. This chapter is a discussion of architectures
that are more reliant or focused on network services. These
architectures are heavily dependent on the network
infrastructure and need to be architected so that the network
services perform and are reliable in order to satisfy user and
application requirements.</para>
<para>Some possible use cases include:</para>
<itemizedlist>
<variablelist>
<varlistentry>
<term>Content delivery network</term>
<listitem>
<para>Content Delivery Network: This could include
<para>This could include
streaming video, photographs or any other cloud based
repository of data that is distributed to a large
number of end users. Mass market streaming video will
@ -36,21 +38,30 @@
as well as the WAN architecture and the cache
methodology.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Network management functions</term>
<listitem>
<para>Network Management Functions: A cloud that provides
<para>A cloud that provides
network service functions would be built to support
the delivery of back-end network services such as DNS,
NTP or SNMP and would be used by a company for
internal network management.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Network service offerings</term>
<listitem>
<para>Network Service Offerings: A cloud can be used to
<para>A cloud can be used to
run customer facing network tools to support services.
For example, VPNs, MPLS private networks, GRE tunnels
and others.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Web portals or web services</term>
<listitem>
<para>Web portals / Web Services: Web servers are a common
<para>Web servers are a common
application for cloud services and it is recommended
to have an understanding of the network requirements.
The network will need to be able to scale out to meet
@ -59,8 +70,11 @@
bandwidth must be considered depending on the details
of the portal architecture.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>High speed and high volume transactional systems</term>
<listitem>
<para>High Speed and High Volume Transactional Systems:
<para>
These types of applications are very sensitive to
network configurations. Examples include many
financial systems, credit card transaction
@ -73,8 +87,11 @@
performance database back ends that need to be
accessed.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>High availability</term>
<listitem>
<para>High Availability: These types of use cases are
<para>These types of use cases are
highly dependent on the proper sizing of the network
to maintain replication of data between sites for high
availability. If one site becomes unavailable, the
@ -83,8 +100,11 @@
important to size network capacity to handle the loads
that are desired.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Big data</term>
<listitem>
<para>Big Data: Clouds that will be used for the
<para>Clouds that will be used for the
management and collection of big data (data ingest)
will have a significant demand on network resources.
Big data often uses partial replicas of the data to
@ -94,8 +114,11 @@
NuoDB, RIAK and other No-SQL and distributed
databases.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Virtual desktop infrastructure (VDI)</term>
<listitem>
<para>Virtual Desktop Infrastructure (VDI): This use case
<para>This use case
is very sensitive to network congestion, latency,
jitter and other network characteristics. Like video
streaming, the user experience is very important
@ -105,8 +128,11 @@
caching for the delivery of the application to the end
user.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Voice over IP (VoIP)</term>
<listitem>
<para>Voice over IP (VoIP): This is extremely sensitive to
<para>This is extremely sensitive to
network congestion, latency, jitter and other network
characteristics. VoIP has a symmetrical traffic
pattern and it requires network quality of service
@ -116,8 +142,11 @@
jitter fluctuations and can detect them at very low
levels.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Video Conference or web conference</term>
<listitem>
<para>Video Conference / Web Conference: This also is
<para>This also is
extremely sensitive to network congestion, latency,
jitter and other network flaws. Video Conferencing has
a symmetrical traffic pattern, but unless the network
@ -126,8 +155,11 @@
Similar to VOIP, users will be sensitive to network
performance issues even at low levels.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>High performance computing (HPC)</term>
<listitem>
<para>High Performance Computing (HPC): This is a complex
<para>This is a complex
use case that requires careful consideration of the
traffic flows and usage patterns to address the needs
of cloud clusters. It has high East-West traffic
@ -135,7 +167,8 @@
substantial North-South traffic depending on the
specific application.</para>
</listitem>
</itemizedlist>
</varlistentry>
</variablelist>
<xi:include href="network_focus/section_user_requirements_network_focus.xml"/>
<xi:include href="network_focus/section_tech_considerations_network_focus.xml"/>

56
doc/arch-design/ch_specialized.xml
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@ -17,34 +17,50 @@
for each use case:</para>
<itemizedlist>
<listitem>
<para>Specialized Networking: This describes running
networking-oriented software that may involve reading
packets directly from the wire or participating in
routing protocols.</para>
<para>
<link
linkend="specialized-networking-example">Specialized
Networking</link>: This describes running
networking-oriented software that may involve reading
packets directly from the wire or participating in
routing protocols.
</para>
</listitem>
<listitem>
<para>Software-Defined Networking: This use case details
both running an SDN controller from within OpenStack
as well as participating in a software-defined
network.</para>
<para>
<link
linkend="software-defined-networking-sdn">Software-defined
networking (SDN)</link>: This use case details both
running an SDN controller from within OpenStack as well
as participating in a software-defined network.
</para>
</listitem>
<listitem>
<para>Desktop-as-a-Service: This is for organizations that
want to run a virtualized desktop environment on a
cloud. This can apply to private or public
clouds.</para>
<para>
<link
linkend="desktop-as-a-service">Desktop-as-a-Service</link>:
This is for organizations that want to run a virtualized
desktop environment on a cloud. This can apply to
private or public clouds.
</para>
</listitem>
<listitem>
<para>OpenStack on OpenStack: Some organizations are
finding that it makes technical sense to build a
multi-tiered cloud by running OpenStack on top of an
OpenStack installation.</para>
<para>
<link
linkend="arch-guide-openstack-on-openstack">OpenStack on
OpenStack</link>: Some organizations are finding that it
makes technical sense to build a multi-tiered cloud by
running OpenStack on top of an OpenStack
installation.
</para>
</listitem>
<listitem>
<para>Specialized Hardware: Some highly specialized
situations will require the use of specialized
hardware devices from within the OpenStack
environment.</para>
<para>
<link linkend="specialized-hardware">Specialized
hardware</link>: Some highly specialized situations will
require the use of specialized hardware devices from
within the OpenStack environment.
</para>
</listitem>
</itemizedlist>

4
doc/arch-design/specialized/section_software_defined_networking_specialized.xml
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@ -5,8 +5,8 @@
version="5.0"
xml:id="software-defined-networking-sdn">
<?dbhtml stop-chunking?>
<title>Software Defined Networking</title>
<para>Software Defined Networking (SDN) is the separation of the data
<title>Software-defined networking</title>
<para>Software-defined networking (SDN) is the separation of the data
plane and control plane. SDN has become a popular method of
managing and controlling packet flows within networks. SDN
uses overlays or directly controlled layer 2 devices to