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The virtual network will be automatically assigned to the OpenNebula cluster which includes the vCenter cluster represented as an OpenNebula host. When the virtual network is created, a hook will create the network elements required on each ESX host that are members of the specified vCenter cluster. Add the required attributes to the template including the OpenNebula’s host ID which represents the vCenter cluster where the network elements will be created. This is the workflow when OpenNebula needs to create a vCenter network:Ĭreate a new OpenNebula virtual network template.
Vmware 6.0 network configuration driver#
OpenNebula can create a vCenter network from a virtual network template if the vCenter network driver is used. You can easily consume vCenter networks using the import tools as explained in the Importing vCenter Networks section. Any NIC present in the OpenNebula VM Template, or added through the attach_nic operation, will be handled by OpenNebula, and as such it is subject to be detached. VCenter VM Templates can define their own NICs, and OpenNebula will manage them and its information (IP, MAC, etc) is known by OpenNebula. OpenNebula additionally can handle on top of these networks three types of Address Ranges: Ethernet, IPv4 and IPv6. OpenNebula will use these networks with the defined characteristics representing them as Virtual Networks. Networks can be created using vSphere’s web client, with any specific configuration like for instance VLANs. OpenNebula supports both “Port Groups” and “Distributed Port Groups”, and as such can create or consume any vCenter defined network resource. You can create port groups directly from OpenNebula using a virtual network definition, adding the attribute VN_MAD=vcenter to the network template and letting OpenNebula create the network elements for you.Įxisting vCenter networks are represented in OpenNebula as virtual networks which BRIDGE attribute matches the name of the Network (port group) defined in vCenter. You can create the port groups using vSphere’s Web Client and then consume them using the import tools or, If you want to associate OpenNebula’s virtual networks to vSphere’s port groups you have two choices: This lets virtual machines to maintain consistent network configuration as they migrate across multiple hosts. You configure a vSphere distributed switch on the vCenter Server system and the configuration is populated across all hosts that are associated with the switch. It acts as a single switch across all associated hosts in a datacenter to provide centralized provisioning, administration, and monitoring of virtual networks. You create and configure the virtual standard switch on each ESXi host where you want that virtual switch to be available. A vSphere standard switch can be connected to physical switches by using physical Ethernet adapters, also referred to as uplink adapters, to join virtual networks with physical networks. It works much like a physical Ethernet switch. The port group is connected to a vSphere Distributed Switch.Īccording to VMWare’s vSphere Networking Guide we have two virtual switches types:
![vmware 6.0 network configuration vmware 6.0 network configuration](https://ecl.ntt.com/en/documents/solution-guides/vmware-guide/_images/ESXi6.0(27).png)
The port group is connected to a vSphere Standard Switch.ĭistributed Port Group. vSphere provides two types of port groups: The VM’s network interfaces connect to vSphere’s virtual switches through port groups. In vSphere’s terminology, a port group can be seen as a template to create virtual ports with particular sets of specifications such as VLAN tagging. OpenNebula can consume port groups or create port groups.
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When adding NICs in a VM template or when attaching a NIC (hot-plugging) to a running VM in OpenNebula, a network interface can be attached to an OpenNebula’s Virtual Machine that is connected to a particular vCenter virtual network. VCenter virtual networks can be represented as OpenNebula virtual networks, where a one-to-one relationship exists between an OpenNebula’s virtual network and a vSphere’s port group.