docs/doc/source/planning/openstack/os-data-networks-overview.rst

Overview

Data networks are used to model the L2 Networks that nodes' data, pci-sriov and pci-passthrough interfaces attach to.

A Layer 2 physical or virtual network or set of virtual networks is used to provide the underlying network connectivity needed to support the application project networks. Multiple data networks may be configured as required, and realized over the same or different physical networks. Access to external networks is typically granted to the openstack-compute labeled worker nodes using the data network. The extent of this connectivity, including access to the open internet, is application dependent.

Data networks are created at the level.

Segmentation ID ranges, for and data networks, are defined through OpenStack Neutron commands, see Add Segmentation Ranges Using the CLI <adding-segmentation-ranges-using-the-cli>.

For details on creating data networks and assigning them to node interfaces, see the documentation:

• Add Data Networks Using the CLI <adding-data-networks-using-the-cli>
• Assign a Data Network to an Interface <assigning-a-data-network-to-an-interface>
• Remove a Data Network Using the CLI <removing-a-data-network-using-the-cli>

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