SR-IOV network#

SR-IOV is a hardware standard that allows a single network card port to appear as several virtual network interfaces in a virtualized environment.

The sriov network type allows to specify presets to use when connecting instances to a parent interface. In this case, the instance NICs can simply set the network option to the network they connect to without knowing any of the underlying configuration details.

Configuration options#

The following configuration key namespaces are currently supported for the sriov network type:

  • maas (MAAS network identification)

  • user (free-form key/value for user metadata)

Note

LXD uses the CIDR notation where network subnet information is required, for example, 192.0.2.0/24 or 2001:db8::/32. This does not apply to cases where a single address is required, for example, local/remote addresses of tunnels, NAT addresses or specific addresses to apply to an instance.

The following configuration options are available for the sriov network type:

Key

Type

Condition

Default

Description

mtu

integer

-

-

The MTU of the new interface

parent

string

-

-

Parent interface to create sriov NICs on

vlan

integer

-

-

The VLAN ID to attach to

maas.subnet.ipv4

string

ipv4 address

-

MAAS IPv4 subnet to register instances in (when using network property on NIC)

maas.subnet.ipv6

string

ipv6 address

-

MAAS IPv6 subnet to register instances in (when using network property on NIC)

user.*

string

-

-

User-provided free-form key/value pairs