The OVS Plugin

    The following table lists the CloudStack network services provided by the OVS Plugin.

    Table: Supported Services

    Note

    The Virtual Networking service was originally called ‘Connectivity’ in CloudStack 4.0

    The following hypervisors are supported by the OVS Plugin.

    Table: Supported Hypervisors

    Prerequisites

    Before enabling the OVS plugin the hypervisor needs to be install OpenvSwitch. Default, XenServer has already installed OpenvSwitch. However, you must install OpenvSwitch manually on KVM. CentOS 6.4 and OpenvSwitch 1.10 are recommended.

    KVM hypervisor:

    • CentOS 6.4 is recommended.

    Note

    With KVM, the traffic type should be configured with the traffic label that matches the name of the Integration Bridge on the hypervisor. For example, you should set the traffic label as following:

    • Management & Storage traffic: cloudbr0
    • Guest & Public traffic: cloudbr1 See KVM networking configuration guide for more detail.

    Agent Configuration

    Note

    Only for KVM hypervisor

    • Configure network interfaces:

    • Edit /etc/cloudstack/agent/agent.properties

    The OVS provider is disabled by default. Navigate to the “Network Service Providers” configuration of the physical network with the GRE isolation type. Navigate to the OVS provider and press the “Enable Provider” button.

    Network Offerings

    Using the OVS plugin requires a network offering with Virtual Networking enabled and configured to use the OVS element. Typical use cases combine services from the Virtual Router appliance and the OVS plugin.

    Table: Isolated network offering with regular services from the Virtual Router.

    a screenshot of a network offering.

    Note

    The tag in the network offering should be set to the name of the physical network with the OVS provider.

    Isolated network with network services. The virtual router is still required to provide network services like dns and dhcp.

    Table: Isolated network offering with network services

    OVS plugin does not work with VPC at that time