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Posted to commits@cloudstack.apache.org by ke...@apache.org on 2013/10/08 21:27:34 UTC

[30/70] [partial] Adding documents from 4.2

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/multi_site_deployment.xml
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+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0.
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="multi_site_deployment">
+    <title>Multi-Site Deployment</title>
+    <para>The &PRODUCT; platform scales well into multiple sites through the use of zones. The following diagram shows an example of a multi-site deployment.</para>
+    <mediaobject>
+        <imageobject>
+            <imagedata fileref="./images/multi-site-deployment.png" />
+        </imageobject>
+        <textobject><phrase>Example Of A Multi-Site Deployment</phrase></textobject>
+    </mediaobject>
+    <para>Data Center 1 houses the primary Management Server as well as zone 1. The MySQL database is replicated in real time to the secondary Management Server installation in Data Center 2.</para>
+    <mediaobject>
+        <imageobject>
+            <imagedata fileref="./images/separate-storage-network.png" />
+        </imageobject>
+        <textobject><phrase>Separate Storage Network</phrase></textobject>
+    </mediaobject>
+    <para>This diagram illustrates a setup with a separate storage network. Each server has four NICs, two connected to pod-level network switches and two connected to storage network switches.</para>
+    <para>There are two ways to configure the storage network:</para>
+    <itemizedlist>
+        <listitem><para> Bonded NIC and redundant switches can be deployed for NFS.  In NFS deployments, redundant switches and bonded NICs still result in one network (one CIDR block+ default gateway address).</para></listitem>
+        <listitem><para> iSCSI can take advantage of two separate storage networks (two CIDR blocks each with its own default gateway). Multipath iSCSI client can failover and load balance between separate storage networks.</para></listitem>
+    </itemizedlist>
+    <mediaobject>
+        <imageobject>
+            <imagedata fileref="./images/nic-bonding-and-multipath-io.png" />
+        </imageobject>
+        <textobject><phrase>NIC Bonding And Multipath I/O</phrase></textobject>
+    </mediaobject>
+    <para> This diagram illustrates the differences between NIC bonding and Multipath I/O (MPIO). NIC bonding configuration involves only one network. MPIO involves two separate networks.</para>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/multiple-ip-nic.xml
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diff --git a/en-US/multiple-ip-nic.xml b/en-US/multiple-ip-nic.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+<section id="multiple-ip-nic">
+  <title>Configuring Multiple IP Addresses on a Single NIC</title>
+  <para>&PRODUCT; provides you the ability to associate multiple private IP addresses per guest VM
+    NIC. In addition to the primary IP, you can assign additional IPs to the guest VM NIC. This
+    feature is supported on all the network configurations&mdash;Basic, Advanced, and VPC. Security
+    Groups, Static NAT and Port forwarding services are supported on these additional IPs. </para>
+  <para>As always, you can specify an IP from the guest subnet; if not specified, an IP is
+    automatically picked up from the guest VM subnet. You can view the IPs associated with for each
+    guest VM NICs on the UI. You can apply NAT on these additional guest IPs by using network
+    configuration option in the &PRODUCT; UI. You must specify the NIC to which the IP should be
+    associated.</para>
+  <para>This feature is supported on XenServer, KVM, and VMware hypervisors. Note that Basic zone
+    security groups are not supported on VMware.</para>
+  <section id="usecases-mip">
+    <title>Use Cases</title>
+    <para>Some of the use cases are described below:</para>
+    <itemizedlist>
+      <listitem>
+        <para>Network devices, such as firewalls and load balancers, generally work best when they
+          have access to multiple IP addresses on the network interface.</para>
+      </listitem>
+      <listitem>
+        <para>Moving private IP addresses between interfaces or instances. Applications that are
+          bound to specific IP addresses can be moved between instances. </para>
+      </listitem>
+      <listitem>
+        <para>Hosting multiple SSL Websites on a single instance. You can install multiple SSL
+          certificates on a single instance, each associated with a distinct IP address.</para>
+      </listitem>
+    </itemizedlist>
+  </section>
+  <section id="guideline-nic">
+    <title>Guidelines</title>
+    <para>To prevent IP conflict, configure different subnets when multiple networks are connected
+      to the same VM.</para>
+  </section>
+  <section id="workflow-rn">
+    <title>Assigning Additional IPs to a VM</title>
+    <orderedlist>
+      <listitem>
+        <para>Log in to the &PRODUCT; UI.</para>
+      </listitem>
+      <listitem>
+        <para>In the left navigation bar, click Instances.</para>
+      </listitem>
+      <listitem>
+        <para>Click the name of the instance you want to work with.</para>
+      </listitem>
+      <listitem>
+        <para>In the Details tab, click NICs.</para>
+      </listitem>
+      <listitem>
+        <para>Click View Secondary IPs.</para>
+      </listitem>
+      <listitem>
+        <para>Click Acquire New Secondary IP, and click Yes in the confirmation dialog.</para>
+        <para>You need to configure the IP on the guest VM NIC manually. &PRODUCT; will not
+          automatically configure the acquired IP address on the VM. Ensure that the IP address
+          configuration persist on VM reboot.</para>
+        <para>Within a few moments, the new IP address should appear with the state Allocated. You
+          can now use the IP address in Port Forwarding or StaticNAT rules.</para>
+      </listitem>
+    </orderedlist>
+  </section>
+  <section id="caveats">
+    <title>Port Forwarding and StaticNAT Services Changes</title>
+    <para>Because multiple IPs can be associated per NIC, you are allowed to select a desired IP for
+      the Port Forwarding and StaticNAT services. The default is the primary IP. To enable this
+      functionality, an extra optional parameter 'vmguestip' is added to the Port forwarding and
+      StaticNAT APIs (enableStaticNat, createIpForwardingRule) to indicate on what IP address NAT
+      need to be configured. If vmguestip is passed, NAT is configured on the specified private IP
+      of the VM. if not passed, NAT is configured on the primary IP of the VM.</para>
+  </section>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/multiple-ip-range.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+<section id="multiple-ip-range">
+  <title>About Multiple IP Ranges</title>
+  <note>
+    <para>The feature can only be implemented on IPv4 addresses.</para>
+  </note>
+  <para>&PRODUCT; provides you with the flexibility to add guest IP ranges from different subnets in
+    Basic zones and security groups-enabled Advanced zones. For security groups-enabled Advanced
+    zones, it implies multiple subnets can be added to the same VLAN. With the addition of this
+    feature, you will be able to add IP address ranges from the same subnet or from a different one
+    when IP address are exhausted. This would in turn allows you to employ higher number of subnets
+    and thus reduce the address management overhead. To support this feature, the capability of
+      <code>createVlanIpRange</code> API is extended to add IP ranges also from a different
+    subnet.</para>
+  <para>Ensure that you manually configure the gateway of the new subnet before adding the IP range.
+    Note that &PRODUCT; supports only one gateway for a subnet; overlapping subnets are not
+    currently supported.</para>
+  <para>Use the <code>deleteVlanRange</code> API to delete IP ranges. This operation fails if an IP
+    from the remove range is in use. If the remove range contains the IP address on which the DHCP
+    server is running, &PRODUCT; acquires a new IP from the same subnet. If no IP is available in
+    the subnet, the remove operation fails.</para>
+  <para>This feature is supported on KVM, xenServer, and VMware hypervisors.</para>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/multiple-system-vm-vmware.xml
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diff --git a/en-US/multiple-system-vm-vmware.xml b/en-US/multiple-system-vm-vmware.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="multiple-system-vm-vmware">
+    <title>Multiple System VM Support for VMware</title>
+    <para>Every &PRODUCT; zone has single System VM for template processing tasks such as downloading templates, uploading templates, and uploading ISOs. In a zone where VMware is being used, additional System VMs can be launched to process VMware-specific tasks such as taking snapshots and creating private templates. The &PRODUCT; management server launches additional System VMs for VMware-specific tasks as the load increases. The management server monitors and weights all commands sent to these System VMs and performs dynamic load balancing and scaling-up of more System VMs.</para>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/network-offering-usage-record-format.xml
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diff --git a/en-US/network-offering-usage-record-format.xml b/en-US/network-offering-usage-record-format.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="network-offering-usage-record-format">
+    <title>Network Offering Usage Record Format</title>
+    <itemizedlist>
+            <listitem><para>account – name of the account</para></listitem>
+            <listitem><para>accountid – ID of the account</para></listitem>
+            <listitem><para>domainid – ID of the domain in which this account resides</para></listitem>
+            <listitem><para>zoneid – Zone where the usage occurred</para></listitem>
+            <listitem><para>description – A string describing what the usage record is tracking</para></listitem>
+            <listitem><para>usage – String representation of the usage, including the units of usage (e.g. 'Hrs' for hours)</para></listitem>
+            <listitem><para>usagetype – A number representing the usage type (see Usage Types)</para></listitem>
+            <listitem><para>rawusage – A number representing the actual usage in hours</para></listitem>
+            <listitem><para>usageid – ID of the network offering</para></listitem>
+            <listitem><para>usagetype – A number representing the usage type (see Usage Types)</para></listitem>
+            <listitem><para>offeringid – Network offering ID</para></listitem>
+            <listitem><para>virtualMachineId – The ID of the virtual machine</para></listitem>
+            <listitem><para>virtualMachineId – The ID of the virtual machine</para></listitem>
+            <listitem><para>startdate, enddate – The range of time for which the usage is aggregated; see Dates in the Usage Record</para></listitem>
+        </itemizedlist>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/network-offerings.xml
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diff --git a/en-US/network-offerings.xml b/en-US/network-offerings.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+    
+    http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+<section id="network-offerings">
+  <title>Network Offerings</title>
+  <note>
+    <para>For the most up-to-date list of supported network services, see the &PRODUCT; UI or call
+      listNetworkServices.</para>
+  </note>
+  <para>A network offering is a named set of network services, such as:</para>
+  <itemizedlist>
+    <listitem>
+      <para>DHCP</para>
+    </listitem>
+    <listitem>
+      <para>DNS</para>
+    </listitem>
+    <listitem>
+      <para>Source NAT</para>
+    </listitem>
+    <listitem>
+      <para>Static NAT</para>
+    </listitem>
+    <listitem>
+      <para>Port Forwarding</para>
+    </listitem>
+    <listitem>
+      <para>Load Balancing</para>
+    </listitem>
+    <listitem>
+      <para>Firewall</para>
+    </listitem>
+    <listitem>
+      <para>VPN</para>
+    </listitem>
+    <listitem>
+      <para>(Optional) Name one of several available providers to use for a given service, such as
+        Juniper for the firewall</para>
+    </listitem>
+    <listitem>
+      <para>(Optional) Network tag to specify which physical network to use</para>
+    </listitem>
+  </itemizedlist>
+  <para>When creating a new VM, the user chooses one of the available network offerings, and that
+    determines which network services the VM can use.</para>
+  <para>The &PRODUCT; administrator can create any number of custom network offerings, in addition
+    to the default network offerings provided by &PRODUCT;. By creating multiple custom network
+    offerings, you can set up your cloud to offer different classes of service on a single
+    multi-tenant physical network. For example, while the underlying physical wiring may be the same
+    for two tenants, tenant A may only need simple firewall protection for their website, while
+    tenant B may be running a web server farm and require a scalable firewall solution, load
+    balancing solution, and alternate networks for accessing the database backend.</para>
+  <note>
+    <para>If you create load balancing rules while using a network service offering that includes an
+      external load balancer device such as NetScaler, and later change the network service offering
+      to one that uses the &PRODUCT; virtual router, you must create a firewall rule on the virtual
+      router for each of your existing load balancing rules so that they continue to
+      function.</para>
+  </note>
+  <para>When creating a new virtual network, the &PRODUCT; administrator chooses which network
+    offering to enable for that network. Each virtual network is associated with one network
+    offering. A virtual network can be upgraded or downgraded by changing its associated network
+    offering. If you do this, be sure to reprogram the physical network to match.</para>
+  <para>&PRODUCT; also has internal network offerings for use by &PRODUCT; system VMs. These network
+    offerings are not visible to users but can be modified by administrators.</para>
+  <xi:include href="creating-network-offerings.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/network-rate.xml
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diff --git a/en-US/network-rate.xml b/en-US/network-rate.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements. See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License. You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied. See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+<section id="network-rate">
+  <title>Network Throttling</title>
+  <para>Network throttling is the process of controlling the network access and bandwidth usage
+    based on certain rules. &PRODUCT; controls this behaviour of the guest networks in the cloud by
+    using the network rate parameter. This parameter is defined as the default data transfer rate in
+    Mbps (Megabits Per Second) allowed in a guest network. It defines the upper limits for network
+    utilization. If the current utilization is below the allowed upper limits, access is granted,
+    else revoked.</para>
+  <para>You can throttle the network bandwidth either to control the usage above a certain limit for
+    some accounts, or to control network congestion in a large cloud environment. The network rate
+    for your cloud can be configured on the following:</para>
+  <itemizedlist>
+    <listitem>
+      <para>Network Offering</para>
+    </listitem>
+    <listitem>
+      <para>Service Offering</para>
+    </listitem>
+    <listitem>
+      <para>Global parameter</para>
+    </listitem>
+  </itemizedlist>
+  <para>If network rate is set to NULL in service offering, the value provided in the
+    vm.network.throttling.rate global parameter is applied. If the value is set to NULL for network
+    offering, the value provided in the network.throttling.rate global parameter is
+    considered.</para>
+  <para>For the default public, storage, and management networks, network rate is set to 0. This
+    implies that the public, storage, and management networks will have unlimited bandwidth by
+    default. For default guest networks, network rate is set to NULL. In this case, network rate is
+    defaulted to the global parameter value.</para>
+  <para>The following table gives you an overview of how network rate is applied on different types
+    of networks in &PRODUCT;.</para>
+  <informaltable>
+    <tgroup cols="2" align="left" colsep="1" rowsep="1">
+      <colspec colwidth="1.0*" colname="1" colnum="1"/>
+      <colspec colwidth="3.18*" colname="2" colnum="2"/>
+      <thead>
+        <row>
+          <entry><para>Networks</para></entry>
+          <entry><para>Network Rate Is Taken from</para></entry>
+        </row>
+      </thead>
+      <tbody>
+        <row>
+          <entry><para>Guest network of Virtual Router</para></entry>
+          <entry><para>Guest Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Public network of Virtual Router</para></entry>
+          <entry><para>Guest Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Storage network of Secondary Storage VM</para></entry>
+          <entry><para>System Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Management network of Secondary Storage VM</para></entry>
+          <entry><para>System Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Storage network of Console Proxy VM</para></entry>
+          <entry><para>System Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Management network of Console Proxy VM</para></entry>
+          <entry><para>System Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Storage network of Virtual Router</para></entry>
+          <entry><para>System Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Management network of Virtual Router</para></entry>
+          <entry><para>System Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Public network of Secondary Storage VM</para></entry>
+          <entry><para>System Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Public network of Console Proxy VM</para></entry>
+          <entry><para>System Network Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Default network of a guest VM</para></entry>
+          <entry><para>Compute Offering</para></entry>
+        </row>
+        <row>
+          <entry><para>Additional networks of a guest VM</para></entry>
+          <entry><para>Corresponding Network Offerings</para></entry>
+        </row>
+      </tbody>
+    </tgroup>
+  </informaltable>
+  <para>A guest VM must have a default network, and can also have many additional networks.
+    Depending on various parameters, such as the host and virtual switch used, you can observe a
+    difference in the network rate in your cloud. For example, on a VMware host the actual network
+    rate varies based on where they are configured (compute offering, network offering, or both);
+    the network type (shared or isolated); and traffic direction (ingress or egress). </para>
+  <para>The network rate set for a network offering used by a particular network in &PRODUCT; is
+    used for the traffic shaping policy of a port group, for example: port group A, for that
+    network: a particular subnet or VLAN on the actual network. The virtual routers for that network
+    connects to the port group A, and by default instances in that network connects to this port
+    group. However, if an instance is deployed with a compute offering with the network rate set,
+    and if this rate is used for the traffic shaping policy of another port group for the network,
+    for example port group B, then instances using this compute offering are connected to the port
+    group B, instead of connecting to port group A.</para>
+  <para>The traffic shaping policy on standard port groups in VMware only applies to the egress
+    traffic, and the net effect depends on the type of network used in &PRODUCT;. In shared
+    networks, ingress traffic is unlimited for &PRODUCT;, and egress traffic is limited to the rate
+    that applies to the port group used by the instance if any. If the compute offering has a
+    network rate configured, this rate applies to the egress traffic, otherwise the network rate set
+    for the network offering applies. For isolated networks, the network rate set for the network
+    offering, if any, effectively applies to the ingress traffic. This is mainly because the network
+    rate set for the network offering applies to the egress traffic from the virtual router to the
+    instance. The egress traffic is limited by the rate that applies to the port group used by the
+    instance if any, similar to shared networks. </para>
+  <para>For example:</para>
+  <para>Network rate of network offering = 10 Mbps</para>
+  <para>Network rate of compute offering = 200 Mbps</para>
+  <para>In shared networks, ingress traffic will not be limited for &PRODUCT;, while egress traffic
+    will be limited to 200 Mbps. In an isolated network, ingress traffic will be limited to 10 Mbps
+    and egress to 200 Mbps.</para>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/network-service-providers.xml
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diff --git a/en-US/network-service-providers.xml b/en-US/network-service-providers.xml
new file mode 100644
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+    
+    http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+
+<section id="network-service-providers">
+    <title>Network Service Providers</title>
+    <note><para>For the most up-to-date list of supported network service providers, see the &PRODUCT; UI or call listNetworkServiceProviders.</para></note>
+    <para>A service provider (also called a network element) is hardware or virtual appliance that makes a network service possible; for example, a firewall appliance can be installed in the cloud to provide firewall service. On a single network, multiple providers can provide the same network service. For example, a firewall service may be provided by Cisco or Juniper devices in the same physical network.</para>
+    <para>You can have multiple instances of the same service provider in a network (say, more than one Juniper SRX device).</para>
+    <para>If different providers are set up to provide the same service on the network, the administrator can create network offerings so users can specify which network service provider they prefer (along with the other choices offered in network offerings). Otherwise, &PRODUCT; will choose which provider to use whenever the service is called for. </para>
+    <formalpara>
+        <title>Supported Network Service Providers</title>
+        <para>&PRODUCT; ships with an internal list of the supported service providers, and you can choose from this list when creating a network offering.</para>
+    </formalpara>
+    <informaltable>
+        <tgroup cols="6" align="left" colsep="1" rowsep="1">
+            <colspec colnum="1" colname="c1" colwidth="2.4*"/>
+            <colspec colnum="2" colname="c2" colwidth="1.14*"/>
+            <colspec colnum="3" colname="c3" colwidth="1.23*"/>
+            <colspec colnum="4" colname="c4" colwidth="1.0*"/>
+            <colspec colnum="5" colname="c5" colwidth="1.3*"/>
+            <colspec colnum="6" colname="c6" colwidth="1.3*"/>
+            <thead>
+                <row>
+                    <entry></entry>
+                    <entry><para>Virtual Router</para></entry>
+                    <entry><para>Citrix NetScaler</para></entry>
+                    <entry><para>Juniper SRX</para></entry>
+                    <entry><para>F5 BigIP</para></entry>
+                    <entry><para>Host based (KVM/Xen)</para></entry>
+                    
+                </row>
+            </thead>
+            <tbody>
+                <row>
+                    <entry><para>Remote Access VPN</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    
+                </row>
+                <row>
+                    <entry><para>DNS/DHCP/User Data</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    							
+                </row>
+                <row>
+                    <entry><para>Firewall</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    </row>
+                <row>
+                    <entry><para>Load Balancing</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                 </row>
+                <row>
+                    <entry><para>Elastic IP</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                   </row>
+                <row>
+                    <entry><para>Elastic LB</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                   </row>
+                <row>
+                    <entry><para>Source NAT</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                    </row>
+                <row>
+                    <entry><para>Static NAT</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                   </row>
+                <row>
+                    <entry><para>Port Forwarding</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>Yes</para></entry>
+                    <entry><para>No</para></entry>
+                    <entry><para>No</para></entry>
+                   </row>
+            </tbody>
+        </tgroup>
+    </informaltable>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/network-setup.xml
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diff --git a/en-US/network-setup.xml b/en-US/network-setup.xml
new file mode 100644
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+++ b/en-US/network-setup.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+<chapter id="network-setup">
+  <title>Network Setup</title>
+  <para>Achieving the correct networking setup is crucial to a successful &PRODUCT;
+    installation. This section contains information to help you make decisions and follow the right
+    procedures to get your network set up correctly.</para>
+  <xi:include href="basic-adv-networking.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="vlan-allocation-eg.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="hardware-config-eg.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="layer2-switch.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="hardware-firewall.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="management-server-lb.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="topology-req.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="guest-nw-usage-with-traffic-sentinel.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/> 
+  <xi:include href="set-zone-vlan-run-vm-max.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  </chapter>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/network-usage-record-format.xml
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diff --git a/en-US/network-usage-record-format.xml b/en-US/network-usage-record-format.xml
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+++ b/en-US/network-usage-record-format.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="network-usage-record-format">
+    <title>Network Usage Record Format</title>
+    <para>For network usage (bytes sent/received), the following fields exist in a usage record.</para>
+    <itemizedlist>
+            <listitem><para>account – name of the account</para></listitem>
+            <listitem><para>accountid – ID of the account</para></listitem>
+            <listitem><para>domainid – ID of the domain in which this account resides</para></listitem>
+            <listitem><para>zoneid – Zone where the usage occurred</para></listitem>
+            <listitem><para>description – A string describing what the usage record is tracking</para></listitem>
+            <listitem><para>usagetype – A number representing the usage type (see Usage Types)</para></listitem>
+            <listitem><para>rawusage – A number representing the actual usage in hours</para></listitem>
+            <listitem><para>usageid – Device ID (virtual router ID or external device ID)</para></listitem>
+            <listitem><para>type – Device type (domain router, external load balancer, etc.)</para></listitem>
+            <listitem><para>startdate, enddate – The range of time for which the usage is aggregated; see Dates in the Usage Record</para></listitem>
+        </itemizedlist>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/networking-in-a-pod.xml
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diff --git a/en-US/networking-in-a-pod.xml b/en-US/networking-in-a-pod.xml
new file mode 100644
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+++ b/en-US/networking-in-a-pod.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+	or more contributor license agreements.  See the NOTICE file
+	distributed with this work for additional information
+	regarding copyright ownership.  The ASF licenses this file
+	to you under the Apache License, Version 2.0 (the
+	"License"); you may not use this file except in compliance
+	with the License.  You may obtain a copy of the License at
+	
+	http://www.apache.org/licenses/LICENSE-2.0
+	
+	Unless required by applicable law or agreed to in writing,
+	software distributed under the License is distributed on an
+	"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+	KIND, either express or implied.  See the License for the
+	specific language governing permissions and limitations
+	under the License.
+-->
+<section id="networking-in-a-pod">
+	<title>Networking in a Pod</title>
+	<para>The figure below illustrates network setup within a single pod. The hosts are connected to a
+		pod-level switch. At a minimum, the hosts should have one physical uplink to each switch.
+		Bonded NICs are supported as well. The pod-level switch is a pair of redundant gigabit
+		switches with 10 G uplinks.</para>
+	<mediaobject>
+		<imageobject>
+			<imagedata fileref="./images/network-singlepod.png" />
+		</imageobject>
+		<textobject>
+			<phrase>networksinglepod.png: diagram showing logical view of network in a pod</phrase>
+		</textobject>
+	</mediaobject>
+	<para>Servers are connected as follows:</para>
+	<itemizedlist>
+	<listitem><para>Storage devices are connected to only the network that carries management traffic.</para></listitem>
+	<listitem><para>Hosts are connected to networks for both management traffic and public traffic. </para></listitem>
+	<listitem><para>Hosts are also connected to one or more networks carrying guest traffic.</para></listitem>
+	</itemizedlist>
+	<para>We recommend the use of multiple physical Ethernet cards to implement each network interface as well as redundant switch fabric in order to maximize throughput and improve reliability.</para>
+						
+	</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/networking-in-a-zone.xml
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diff --git a/en-US/networking-in-a-zone.xml b/en-US/networking-in-a-zone.xml
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+++ b/en-US/networking-in-a-zone.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+	or more contributor license agreements.  See the NOTICE file
+	distributed with this work for additional information
+	regarding copyright ownership.  The ASF licenses this file
+	to you under the Apache License, Version 2.0 (the
+	"License"); you may not use this file except in compliance
+	with the License.  You may obtain a copy of the License at
+	
+	http://www.apache.org/licenses/LICENSE-2.0
+	
+	Unless required by applicable law or agreed to in writing,
+	software distributed under the License is distributed on an
+	"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+	KIND, either express or implied.  See the License for the
+	specific language governing permissions and limitations
+	under the License.
+-->
+<section id="networking-in-a-zone">
+	<title>Networking in a Zone</title>
+	<para>The following figure illustrates the network setup within a single zone.</para>
+	<mediaobject>
+		<imageobject>
+			<imagedata fileref="./images/network-setup-zone.png" />
+		</imageobject>
+		<textobject>
+			<phrase>networksetupzone.png: Depicts network setup in a single zone</phrase>
+		</textobject>
+	</mediaobject>
+	<para>A firewall for management traffic operates in the NAT mode. The network typically is assigned IP addresses in the 192.168.0.0/16 Class B private address space. Each pod is assigned IP addresses in the 192.168.*.0/24 Class C private address space.</para>
+	<para>Each zone has its own set of public IP addresses. Public IP addresses from different zones do not overlap.</para>
+						
+	</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/networking-overview.xml
----------------------------------------------------------------------
diff --git a/en-US/networking-overview.xml b/en-US/networking-overview.xml
new file mode 100644
index 0000000..a71fe95
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+++ b/en-US/networking-overview.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+	or more contributor license agreements.  See the NOTICE file
+	distributed with this work for additional information
+	regarding copyright ownership.  The ASF licenses this file
+	to you under the Apache License, Version 2.0 (the
+	"License"); you may not use this file except in compliance
+	with the License.  You may obtain a copy of the License at
+	
+	http://www.apache.org/licenses/LICENSE-2.0
+	
+	Unless required by applicable law or agreed to in writing,
+	software distributed under the License is distributed on an
+	"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+	KIND, either express or implied.  See the License for the
+	specific language governing permissions and limitations
+	under the License.
+-->
+<section id="networking-overview">
+		<title>Networking Overview</title>
+		<para>&PRODUCT; offers two types of networking scenario:
+		</para>
+		<itemizedlist>
+			<listitem><para>Basic. For AWS-style networking. Provides a single network where guest isolation can be provided through layer-3 means such as security groups (IP address source filtering).</para></listitem>
+			<listitem><para>Advanced. For more sophisticated network topologies. This network model provides the most flexibility in defining guest networks.</para></listitem>
+		</itemizedlist>
+		<para>For more details, see Network Setup.</para>
+	</section>
+

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/networking_overview.xml
----------------------------------------------------------------------
diff --git a/en-US/networking_overview.xml b/en-US/networking_overview.xml
new file mode 100644
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+++ b/en-US/networking_overview.xml
@@ -0,0 +1,36 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="networking_overview">
+        <title>Networking Overview</title>
+        <para>
+            CloudStack offers two types of networking scenario:
+        </para>
+        <itemizedlist>
+            <listitem><para>Basic. For AWS-style networking. Provides a single network where guest isolation can be provided through layer-3 means such as security groups (IP address source filtering).</para></listitem>
+            <listitem><para>Advanced. For more sophisticated network topologies. This network model provides the most flexibility in defining guest networks.</para></listitem>
+        </itemizedlist>
+        <para>For more details, see Network Setup.</para>
+</section>
+

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/networks-for-users-overview.xml
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diff --git a/en-US/networks-for-users-overview.xml b/en-US/networks-for-users-overview.xml
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@@ -0,0 +1,35 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="networks-for-users-overview">
+    <title>Overview of Setting Up Networking for Users</title>
+    <para>People using cloud infrastructure have a variety of needs and preferences when it comes to the networking services provided by the cloud. As a &PRODUCT; administrator, you can do the following things to set up networking for your users:</para>
+    <itemizedlist>
+        <listitem><para>Set up physical networks in zones</para></listitem>
+        <listitem><para>Set up several different providers for the same service on a single physical network (for example, both Cisco and Juniper firewalls)</para></listitem>
+        <listitem><para>Bundle different types of network services into network offerings, so users can choose the desired network services for any given virtual machine </para></listitem>
+        <listitem><para>Add new network offerings as time goes on so end users can upgrade to a better class of service on their network</para></listitem>
+        <listitem><para>Provide more ways for a network to be accessed by a user, such as through a project of which the user is a member </para></listitem>
+    </itemizedlist>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/networks.xml
----------------------------------------------------------------------
diff --git a/en-US/networks.xml b/en-US/networks.xml
new file mode 100644
index 0000000..b28f985
--- /dev/null
+++ b/en-US/networks.xml
@@ -0,0 +1,58 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+<chapter id="networks">
+  <title>Managing Networks and Traffic</title>
+  <para>In a &PRODUCT;, guest VMs can communicate with each other using shared infrastructure with
+    the security and user perception that the guests have a private LAN. The &PRODUCT; virtual
+    router is the main component providing networking features for guest traffic. </para>
+  <xi:include href="guest-traffic.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="networking-in-a-pod.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="networking-in-a-zone.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="basic-zone-physical-network-configuration.xml"
+    xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="advanced-zone-physical-network-configuration.xml"
+    xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="using-multiple-guest-networks.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="reserved-ip-addresses-non-csvms.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="ip-vlan-tenant.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="multiple-ip-nic.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="multiple-ip-range.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="elastic-ip.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="portable-ip.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="add-ip-range.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="pvlan.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="security-groups.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="external-firewalls-and-load-balancers.xml"
+    xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="gslb.xml"
+    xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="guest-ip-ranges.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="acquire-new-ip-address.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="release-ip-address.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="static-nat.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="ip-forwarding-firewalling.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="ip-load-balancing.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="dns-dhcp.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="vpn.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="inter-vlan-routing.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="configure-vpc.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+  <xi:include href="persistent-network.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+</chapter>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/nfs-shares-on-management-server.xml
----------------------------------------------------------------------
diff --git a/en-US/nfs-shares-on-management-server.xml b/en-US/nfs-shares-on-management-server.xml
new file mode 100644
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="nfs-shares-on-management-server">
+    <title>Using the Management Server as the NFS Server</title>
+    <para>This section tells how to set up NFS shares for primary and secondary storage on the same node with the Management Server.  This is more typical of a trial installation, but is technically possible in a larger deployment. It is assumed that you will have less than 16TB of storage on the host.</para> 
+    <para>The exact commands for the following steps may vary depending on your operating system version.</para>
+    <orderedlist>
+        <listitem><para>On RHEL/CentOS systems, you'll need to install the nfs-utils package:</para>
+        <programlisting>
+$ sudo yum install nfs-utils
+        </programlisting>
+        </listitem>
+        <listitem><para>On the Management Server host, create two directories that you will use for primary and secondary storage. For example:</para>
+        <programlisting>
+# mkdir -p /export/primary
+# mkdir -p /export/secondary
+        </programlisting>
+        </listitem>
+        <listitem><para>To configure the new directories as NFS exports, edit /etc/exports. Export the NFS share(s) with rw,async,no_root_squash. For example:</para>
+            <programlisting># vi /etc/exports</programlisting>
+            <para>Insert the following line.</para>
+            <programlisting>/export  *(rw,async,no_root_squash)</programlisting>
+        </listitem>
+        <listitem><para>Export the /export directory.</para>
+            <programlisting># exportfs -a</programlisting>
+        </listitem>
+        <listitem><para>Edit the /etc/sysconfig/nfs file.</para>
+            <programlisting># vi /etc/sysconfig/nfs</programlisting>
+            <para>Uncomment the following lines:</para>
+            <programlisting>
+LOCKD_TCPPORT=32803
+LOCKD_UDPPORT=32769
+MOUNTD_PORT=892
+RQUOTAD_PORT=875
+STATD_PORT=662
+STATD_OUTGOING_PORT=2020
+            </programlisting>
+        </listitem>
+        <listitem><para>Edit the /etc/sysconfig/iptables file.</para>
+            <programlisting># vi /etc/sysconfig/iptables</programlisting>
+            <para>Add the following lines at the beginning of the INPUT chain where &lt;NETWORK&gt; is the network that you'll be using:</para>
+            <programlisting>
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p udp --dport 111 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p tcp --dport 111 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p tcp --dport 2049 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p tcp --dport 32803 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p udp --dport 32769 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p tcp --dport 892 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p udp --dport 892 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p tcp --dport 875 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p udp --dport 875 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p tcp --dport 662 -j ACCEPT
+-A INPUT -s &lt;NETWORK&gt; -m state --state NEW -p udp --dport 662 -j ACCEPT                
+            </programlisting>
+        </listitem>
+        <listitem><para>Run the following commands:</para>
+            <programlisting>
+# service iptables restart
+# service iptables save
+            </programlisting>
+        </listitem>
+        <listitem><para>If NFS v4 communication is used between client and server, add your domain to /etc/idmapd.conf on both the hypervisor host and Management Server.</para>
+            <programlisting># vi /etc/idmapd.conf</programlisting>
+            <para>Remove the character # from the beginning of the Domain line in idmapd.conf and replace the value in the file with your own domain. In the example below, the domain is company.com.</para>
+            <programlisting>Domain = company.com</programlisting>
+        </listitem>
+        <listitem><para>Reboot the Management Server host.</para>
+            <para>Two NFS shares called /export/primary and /export/secondary are now set up.</para>
+        </listitem>
+        <listitem><para>It is recommended that you test to be sure the previous steps have been successful.</para>
+            <orderedlist numeration="loweralpha">
+                <listitem><para>Log in to the hypervisor host.</para></listitem>
+                <listitem><para>Be sure NFS and rpcbind are running. The commands might be different depending on your OS. For example:</para>
+                    <programlisting>
+# service rpcbind start
+# service nfs start
+# chkconfig nfs on
+# chkconfig rpcbind on
+# reboot                        
+                    </programlisting>
+                </listitem>
+                <listitem><para>Log back in to the hypervisor host and try to mount the /export directories. For example (substitute your own management server name):</para>
+                    <programlisting>
+# mkdir /primarymount
+# mount -t nfs &lt;management-server-name&gt;:/export/primary /primarymount
+# umount /primarymount
+# mkdir /secondarymount
+# mount -t nfs &lt;management-server-name&gt;:/export/secondary /secondarymount
+# umount /secondarymount                        
+                    </programlisting>
+                </listitem>
+            </orderedlist>
+        </listitem>
+    </orderedlist>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/nfs-shares-on-separate-server.xml
----------------------------------------------------------------------
diff --git a/en-US/nfs-shares-on-separate-server.xml b/en-US/nfs-shares-on-separate-server.xml
new file mode 100644
index 0000000..947106d
--- /dev/null
+++ b/en-US/nfs-shares-on-separate-server.xml
@@ -0,0 +1,52 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="nfs-shares-on-separate-server">
+    <title>Using a Separate NFS Server</title>
+    <para>This section tells how to set up NFS shares for secondary and (optionally) primary storage on an NFS server running on a separate node from the Management Server.</para> 
+    <para>The exact commands for the following steps may vary depending on your operating system version.</para>
+    <warning><para>(KVM only) Ensure that no volume is already mounted at your NFS mount point.</para></warning>
+    <orderedlist>
+        <listitem><para>On the storage server, create an NFS share for secondary storage and, if you are using NFS for primary storage as well, create a second NFS share. For example:</para>
+        <programlisting>
+# mkdir -p /export/primary
+# mkdir -p /export/secondary
+        </programlisting>
+        </listitem>
+        <listitem><para>To configure the new directories as NFS exports, edit /etc/exports. Export the NFS share(s) with rw,async,no_root_squash. For example:</para>
+            <programlisting># vi /etc/exports</programlisting>
+            <para>Insert the following line.</para>
+            <programlisting>/export  *(rw,async,no_root_squash)</programlisting>
+        </listitem>
+        <listitem><para>Export the /export directory.</para>
+            <programlisting># exportfs -a</programlisting>
+        </listitem>
+        <listitem><para>On the management server, create a mount point for secondary storage. For example:</para>
+            <programlisting># mkdir -p /mnt/secondary</programlisting>
+        </listitem>
+        <listitem><para>Mount the secondary storage on your Management Server. Replace the example NFS server name and NFS share paths below with your own.</para>
+            <programlisting># mount -t nfs nfsservername:/nfs/share/secondary /mnt/secondary</programlisting>
+        </listitem>
+    </orderedlist>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/non-contiguous-vlan.xml
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diff --git a/en-US/non-contiguous-vlan.xml b/en-US/non-contiguous-vlan.xml
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+++ b/en-US/non-contiguous-vlan.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+   http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+<section id="non-contiguous-vlan">
+  <title>Adding Non Contiguous VLAN Ranges</title>
+  <para>&PRODUCT; provides you with the flexibility to add non contiguous VLAN ranges to your
+    network. The administrator can either update an existing VLAN range or add multiple non
+    contiguous VLAN ranges while creating a zone. You can also use the UpdatephysicalNetwork API to
+    extend the VLAN range.</para>
+  <orderedlist>
+    <listitem>
+      <para>Log in to the &PRODUCT; UI as an administrator or end user.</para>
+    </listitem>
+    <listitem>
+      <para>Ensure that the VLAN range does not already exist.</para>
+    </listitem>
+    <listitem>
+      <para>In the left navigation, choose Infrastructure. </para>
+    </listitem>
+    <listitem>
+      <para>On Zones, click View More, then click the zone to which you want to work with.</para>
+    </listitem>
+    <listitem>
+      <para>Click Physical Network.</para>
+    </listitem>
+    <listitem>
+      <para>In the Guest node of the diagram, click Configure.</para>
+    </listitem>
+    <listitem>
+      <para>Click Edit <inlinemediaobject>
+          <imageobject>
+            <imagedata fileref="./images/edit-icon.png"/>
+          </imageobject>
+          <textobject>
+            <phrase>edit-icon.png: button to edit the VLAN range.</phrase>
+          </textobject>
+        </inlinemediaobject></para>
+      <para>The VLAN Ranges field now is editable.</para>
+    </listitem>
+    <listitem>
+      <para>Specify the start and end of the VLAN range in comma-separated list.</para>
+      <para>Specify all the VLANs you want to use, VLANs not specified will be removed if you are
+        adding new ranges to the existing list. </para>
+    </listitem>
+    <listitem>
+      <para>Click Apply.</para>
+    </listitem>
+  </orderedlist>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/offerings.xml
----------------------------------------------------------------------
diff --git a/en-US/offerings.xml b/en-US/offerings.xml
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+++ b/en-US/offerings.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied. See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+
+<chapter id="offerings">
+    <title>Service Offerings</title>
+    <para>In this chapter we discuss compute, disk, and system service offerings. Network offerings
+        are discussed in the section on setting up networking for users.</para>
+    <xi:include href="compute-disk-service-offerings.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
+    <xi:include href="system-service-offerings.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
+    <xi:include href="network-rate.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
+    <xi:include href="sys-offering-sysvm.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
+</chapter>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/ongoing-config-of-external-firewalls-lb.xml
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diff --git a/en-US/ongoing-config-of-external-firewalls-lb.xml b/en-US/ongoing-config-of-external-firewalls-lb.xml
new file mode 100644
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+++ b/en-US/ongoing-config-of-external-firewalls-lb.xml
@@ -0,0 +1,46 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+<section id="ongoing-config-of-external-firewalls-ld">
+  <title>Ongoing Configuration of External Firewalls and Load Balancers</title>
+  <para>Additional user actions (e.g. setting a port forward) will cause further programming of the
+    firewall and load balancer. A user may request additional public IP addresses and forward
+    traffic received at these IPs to specific VMs. This is accomplished by enabling static NAT for a
+    public IP address, assigning the IP to a VM, and specifying a set of protocols and port ranges
+    to open. When a static NAT rule is created, &PRODUCT; programs the zone's external firewall with
+    the following objects:</para>
+  <itemizedlist>
+    <listitem>
+      <para>A static NAT rule that maps the public IP address to the private IP address of a
+        VM.</para>
+    </listitem>
+    <listitem>
+      <para>A security policy that allows traffic within the set of protocols and port ranges that
+        are specified.</para>
+    </listitem>
+    <listitem>
+      <para>A firewall filter counter that measures the number of bytes of incoming traffic to the
+        public IP.</para>
+    </listitem>
+  </itemizedlist>
+  <para>The number of incoming and outgoing bytes through source NAT, static NAT, and load balancing
+    rules is measured and saved on each external element. This data is collected on a regular basis
+    and stored in the &PRODUCT; database.</para>
+</section>

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/over-provisioning-service-offering-limits.xml
----------------------------------------------------------------------
diff --git a/en-US/over-provisioning-service-offering-limits.xml b/en-US/over-provisioning-service-offering-limits.xml
new file mode 100644
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+++ b/en-US/over-provisioning-service-offering-limits.xml
@@ -0,0 +1,161 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="over-provisioning-service-offering-limits">
+    <title>Over-Provisioning and Service Offering Limits</title>
+  <para>(Supported for XenServer, KVM, and VMware)</para>
+  <para>CPU and memory (RAM) over-provisioning factors can be set for each cluster to change the
+    number of VMs that can run on each host in the cluster. This helps optimize the use of
+    resources. By increasing the over-provisioning ratio, more resource capacity will be used. If
+    the ratio is set to 1, no over-provisioning is done.</para>
+  <para>The administrator can also set global default over-provisioning ratios
+    in the cpu.overprovisioning.factor and mem.overprovisioning.factor global configuration variables.
+    The default value of these variables is 1: over-provisioning is turned off by default.
+  </para>
+  <para>Over-provisioning ratios are dynamically substituted in &PRODUCT;'s capacity
+    calculations. For example: </para>
+  <para>Capacity = 2 GB</para>
+  <para>Over-provisioning factor = 2</para>
+  <para>Capacity after over-provisioning = 4 GB</para>
+  <para>With this configuration, suppose you deploy 3 VMs of 1 GB each:</para>
+  <para>Used = 3 GB</para>
+  <para>Free = 1 GB</para>
+  <para>The administrator can specify a memory over-provisioning ratio, and can specify both CPU and
+    memory over-provisioning ratios on a per-cluster basis.</para>
+  <para>In any given cloud, the optimum number of VMs for each host is affected by such things as
+    the hypervisor, storage, and hardware configuration. These may be different for each cluster in
+    the same cloud. A single global over-provisioning setting can not provide the best utilization
+    for all the different clusters in the cloud. It has to be set for the lowest common denominator.
+    The per-cluster setting provides a finer granularity for better utilization of resources, no
+    matter where the &PRODUCT; placement algorithm decides to place a VM.</para>
+  <para>The overprovisioning settings can be used along with dedicated resources (assigning a
+    specific cluster to an account) to effectively offer different levels of service to
+    different accounts. For example, an account paying for a more expensive level of service
+    could be assigned to a dedicated cluster with an over-provisioning ratio of 1, and a
+    lower-paying account to a cluster with a ratio of 2.</para>
+  <para>When a new host is added to a cluster, &PRODUCT; will assume the host has the
+    capability to perform the CPU and RAM over-provisioning which is configured for that
+    cluster. It is up to the administrator to be sure the host is actually suitable for the
+    level of over-provisioning which has been set.</para>
+  <section id="overcommit-limitations">
+    <title>Limitations on Over-Provisioning in XenServer and KVM</title>
+    <itemizedlist>
+      <listitem><para>In XenServer, due to a constraint of this hypervisor, you can not use an
+        over-provisioning factor greater than 4.</para></listitem>
+      <listitem><para>The KVM hypervisor can not manage memory allocation to VMs dynamically.
+        &PRODUCT; sets the minimum and maximum amount of memory that a VM can use.
+        The hypervisor adjusts the memory within the set limits based on the memory contention.</para></listitem>
+    </itemizedlist>    
+  </section>
+  <section id="overcommit-prerequisites">
+    <title>Requirements for Over-Provisioning</title>
+    <para>Several prerequisites are required in order for over-provisioning to function
+      properly. The feature is dependent on the OS type, hypervisor capabilities, and certain
+      scripts. It is the administrator's responsibility to ensure that these requirements are
+      met.</para>
+    <section id="balloon-driver">
+      <title>Balloon Driver</title>
+      <para>All VMs should have a balloon driver installed in them. The hypervisor
+        communicates with the balloon driver to free up and make the memory available to a
+        VM.</para>
+      <formalpara>
+        <title>XenServer</title>
+        <para>The balloon driver can be found as a part of xen pv or PVHVM drivers. The xen
+          pvhvm drivers are included in upstream linux kernels 2.6.36+.</para>
+      </formalpara>
+      <formalpara>
+        <title>VMware</title>
+        <para>The balloon driver can be found as a part of the VMware tools. All the VMs that
+          are deployed in a over-provisioned cluster should have the VMware tools
+          installed.</para>
+      </formalpara>
+      <formalpara>
+        <title>KVM</title>
+        <para>All VMs are required to support the virtio drivers. These drivers are installed
+          in all Linux kernel versions 2.6.25 and greater. The administrator must set
+          CONFIG_VIRTIO_BALLOON=y in the virtio configuration. </para>
+      </formalpara>
+    </section>
+    <section id="memory-ballooning">
+      <title>Hypervisor capabilities</title>
+      <para>The hypervisor must be capable of using the memory ballooning.</para>
+      <formalpara>
+        <title>XenServer</title>
+        <para>The DMC (Dynamic Memory Control) capability of the hypervisor should be enabled.
+          Only XenServer Advanced and above versions have this feature.</para>
+      </formalpara>
+      <formalpara>
+        <title>VMware, KVM</title>
+        <para>Memory ballooning is supported by default.</para>
+      </formalpara>
+    </section>
+  </section>
+  <section id="create-overcommit">
+    <title>Setting Over-Provisioning Ratios</title>
+    <para>There are two ways the root admin can set CPU and RAM over-provisioning ratios. First, the
+      global configuration settings cpu.overprovisioning.factor and mem.overprovisioning.factor will
+      be applied when a new cluster is created. Later, the ratios can be modified for an existing
+      cluster.</para>
+    <para>Only VMs deployed after the change are affected by the new setting.
+      If you want VMs deployed before the change to adopt the new over-provisioning ratio,
+      you must stop and restart the VMs.
+      When this is done, &PRODUCT; recalculates or scales the used and 
+      reserved capacities based on the new over-provisioning ratios,
+      to ensure that &PRODUCT; is correctly tracking the amount of free capacity.</para>
+    <note><para>It is safer not to deploy additional new VMs while the capacity recalculation is underway, in
+        case the new values for available capacity are not high enough to accommodate the new VMs.
+        Just wait for the new used/available values to become available, to be sure there is room
+        for all the new VMs you want.</para></note>
+    <para>To change the over-provisioning ratios for an existing cluster:</para>
+    <orderedlist>
+      <listitem>
+        <para>Log in as administrator to the &PRODUCT; UI.</para>
+      </listitem>
+      <listitem>
+        <para>In the left navigation bar, click Infrastructure.</para>
+      </listitem>
+      <listitem>
+        <para>Under Clusters, click View All.</para>
+      </listitem>
+      <listitem>
+        <para>Select the cluster you want to work with, and click the Edit button.</para>
+      </listitem>
+      <listitem>
+        <para>Fill in your desired over-provisioning multipliers in the fields CPU overcommit
+          ratio and RAM overcommit ratio. The value which is intially shown in these
+          fields is the default value inherited from the global configuration settings.
+        </para>
+        <note>
+          <para>In XenServer, due to a constraint of this hypervisor, you can not use an
+            over-provisioning factor greater than 4.</para>
+        </note>
+      </listitem>
+    </orderedlist>
+  </section>
+  <section id="op-service-offering-limits">
+    <title>Service Offering Limits and Over-Provisioning</title>
+    <para>Service offering   limits (e.g. 1 GHz, 1 core) are strictly enforced for core count.  For example, a guest with a service offering of one core will have only one core available to it regardless of other activity on the Host.  </para>
+    <para>Service offering limits for gigahertz are enforced only in the presence of contention for CPU resources.  For example, suppose that a guest was created with a service offering of 1 GHz on a Host that has 2 GHz cores, and that guest is the only guest running on the Host.  The guest will have the full 2 GHz available to it.  When multiple guests are attempting to use the CPU a weighting factor is used to schedule CPU resources.  The weight is based on the clock speed in the service offering.  Guests receive a CPU allocation that is proportionate to the GHz in the service offering.   For example, a guest created from a 2 GHz service offering will receive twice the CPU allocation as a guest created from a 1 GHz service offering. &PRODUCT; does not perform memory over-provisioning.</para>
+  </section>
+</section>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/cloudstack-docs/blob/b23872a5/en-US/ovm-install.xml
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diff --git a/en-US/ovm-install.xml b/en-US/ovm-install.xml
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+++ b/en-US/ovm-install.xml
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+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+%BOOK_ENTITIES;
+]>
+
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+-->
+
+<section id="ovm-install">
+	  <title>Installing OVM for &PRODUCT;</title>
+    <para>TODO</para>
+    <xi:include href="ovm-requirements.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
+</section>