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2.2. Preparing to install a cluster that uses SR-IOV

You must configure RHOSP before you install a cluster that uses SR-IOV on it.

2.2.1. Creating SR-IOV networks for compute machines
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If your Red Hat OpenStack Platform (RHOSP) deployment supports single root I/O virtualization (SR-IOV), you can provision SR-IOV networks that compute machines run on.

注意

The following instructions entail creating an external flat network and an external, VLAN-based network that can be attached to a compute machine. Depending on your RHOSP deployment, other network types might be required.

Prerequisites

  • Your cluster supports SR-IOV.

    注意

    If you are unsure about what your cluster supports, review the OpenShift Container Platform SR-IOV hardware networks documentation.

  • You created radio and uplink provider networks as part of your RHOSP deployment. The names radio and uplink are used in all example commands to represent these networks.

Procedure

  1. On a command line, create a radio RHOSP network: 

    $ openstack network create radio --provider-physical-network radio --provider-network-type flat --external

  2. Create an uplink RHOSP network: 

    $ openstack network create uplink --provider-physical-network uplink --provider-network-type vlan --external

  3. Create a subnet for the radio network: 

    $ openstack subnet create --network radio --subnet-range <radio_network_subnet_range> radio

  4. Create a subnet for the uplink network: 

    $ openstack subnet create --network uplink --subnet-range <uplink_network_subnet_range> uplink
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