Interface Settings

The settings for creating or editing an interface on a node depend on the type of interface class to which the interface is connected (for example, platform, pci-sriov, pci-passthrough or data), as well as the type of interface (for example, aggregated ethernet or vlan).

These settings are available on the Edit Interface and Create Interface dialogs for a host, accessible from the Interfaces tab of the Host Inventory page of the Horizon Web interface.

Interface Name

A name used to identify the interface.

Caution

To avoid potential internal inconsistencies, do not use upper case characters when creating interface names. Some components normalize all interface names to lower case.

Interface Class

The class of the interface. The valid classes are platform, data, pci-sriov, and pci-passthrough.

mgmt

Attaches the interface to the internal management network.

When a worker or storage node is added to StarlingX, the interface used for PXE boot is assigned automatically to the internal management network. In the settings for this interface, mgmt is already selected. For other interfaces, this selection is not used.

pxeboot

pxeboot platform network type

cluster-host

Attaches the interface to the Kubernetes cluster network.

oam

Attaches the interface to the OAM network.

The OAM network is used by controller nodes for administrator remote access. It is not applicable to worker or storage nodes.

Platform

A platform network that can be associated with a ‘platform’ class, including:

• Mgmt

• Pxeboot

• Cluster-host

• Oam

• Storage (optional)

Note

A platform class interface can also be used as an interface to an external network. In this case, no platform network would be associated with the platform class interface.

data

This interface class is only applicable when running the StarlingX OpenStack OpenStack application. In general, it attaches the interface to an additional network for external connectivity.

A data interface class attaches the interface to a data network providing the underlying network for OpenStack Neutron Tenant Networks.

pci-passthrough

Provides for a direct connection to physical interface hardware connected to a data network(s). A single application (i.e. a container or in the case of the Managed OpenStack application, a hosted application) can directly access the physical interface.

pci-sriov

Allows a direct connection to a virtual unit of physical interface hardware connected to a data network(s). Multiple applications (containers, or in the case of Managed OpenStack application, hosted applications) can directly access and share the same physical interface. For more information, see Provision SR-IOV Interfaces using the CLI.

none

Clears the Interface Class setting.

Interface Type

The type of interface (Ethernet, aggregated Ethernet, or VLAN).

Aggregated Ethernet - Mode

(Shown only when the Interface Type is set to aggregated ethernet). The operational mode for link aggregation.

Aggregated Ethernet - Tx Policy

(Shown only when the Aggregated Ethernet - Mode is set to balanced or 802.3ad). The transmit policy for link aggregation.

Vlan ID

(Shown only when the Interface Type is set to vlan) A unique VLAN identifier for the network.

Port(s)

The physical port or ports used for the interface.

Data Networks

(Shown only when the Interface Class is set to data, pci-passthrough, or pci-sriov). To attach the interface to a data network, select the desired data network.

MTU

The maximum transmission unit for the interface.

For a StarlingX OpenStack application data interface attached to a data network, this must be equal to or larger than the MTU of the data network to which the interface is attached.

IPv4 Addressing Mode

(Shown only when the Interface Class is set to data). The method for assigning an IP address to the interface.

Disabled

Do not assign an IPv4 address.

Static

Use a static IPv4 address.

Pool

Use an address from a pool of IPv4 addresses that has been defined and associated with the data interface.

IPv4 Addressing Pool

(Shown only when the IPv4 Addressing Mode is set to pool). The pool from which to assign an IPv4 address.

IPv6 Addressing Mode

(Shown only when the Interface Class is set to data). The method for assigning an IP address to the interface for use with VXLAN networks.

Note

For the StarlingX OpenStack application this is used for the IPv6 Address of VXLAN tunnel endpoints for use with VXLAN data networks.

Disabled

Do not assign an IPv6 address.

Static

Use a static IPv6 address.

Pool

Use an address from a pool of IPv6 addresses that has been defined and associated with the data interface.

Automatic Assignment

Use an automatically assigned IPv6 address.

Link Local

Use a link local IPv6 address.

IPv6 Address Pool

(Shown only when the IPv6 Addressing Mode is set to pool) The pool from which to assign an IPv6 address.

Virtual Functions

(Shown only when the Interface Class is set to pci-sriov) The number of virtual interfaces to use.

Maximum Virtual Functions

(Shown only when the Interface Class is set to pci-sriov)

The maximum number of virtual interfaces available.