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This guide is geared more

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towards CS 4.0 (build 140) and vSphere5, however, the same concept should apply to other hypervisors types like KVM and XEN

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. This is NOT a beginners guide, please use your judgement and substitute values as necessary.

What This Guide Covers

• CloudStack Advanced Network Concepts
• Physical Networks and Mapping
• VLAN Tagging
• Usage of Virtual Switches
• Network Offerings
• API Usage and CloudMokey CLI
• Troubleshooting 

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• Used CloudStack previously and have basic network setup functional
• Able to provision VMs in basic network setup and your setup is fully operational
• Have understanding of basic terminology - go to this page for CS4 Documentation
• Root access to your hypervisors/virtual center and know your network topology
• Minimal experience with using APIs and/or CloudMonkey CLI
• Able to tell what config options must change to suit your environment

Getting Started

If you attempted to create Advanced Networking - but for some reason it did not work and you would like to start over

• If you've tried previously to configure CS within your environment and it has not worked, before you begin, make sure you environment is clean from all previous attempts. I will use VSphere 5 as an example, translate it to a hypervisor of your choice.
• Remove all network modifications on your Hypervisors/Cluster created by CS
• Remove all storage modifications on your Hypervisors/Cluster created by CS
• Remove all the content from NFS primary and secondary datastore (i'm making assumption that data is not needed) or present a new primary and secondary NFS datastore
• Remove all the references from CS about the zone/pod/cluster/storage/networks/hosts you attempted to add but failed
  If there are remnants of previous setup - there is a chance your Zone Deployment may fail - therefore, please confirm that your environment is pristine state as it was pre-CloudStack 

Pretext

The example environment in this tutorial consists of:

Physical gear and OS:

• 3 x HP BL465 G8 Servers as hypervisors
• Each hypervisor has 6 NICs
• VmWare vSphere 5.0 u1 and Virtual Center 5.0

Network Layout:

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- vSwitch0 - Virtual Switch for Management

-- Management Network - Portgroup for Management vnic vmk0

--- NO VLAN TAGGING

2 NICs assigned for this vSwitch

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- vSwitch2 - Virtual Switch for Guest VMs TRUNK Network

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Step 1: Import system template

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Step 2: Create a network layout sheet for your reference

It is recommended to create layout of how you believe CloudStack IP allocation will take place, hence a quick write up of what networks get what assignments is very helpful.

In this example, we have a 3 node VmWare vSphere 5 cluster

To be continued