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# 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:

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

Note

Incus 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:

`mtu`

The MTU of the new interface

Key: | `mtu`
Type: | integer
Condition: |

`parent`

Parent interface to create `sriov` NICs on

Key: | `parent`
Type: | string
Condition: |

`user.*`

User-provided free-form key/value pairs

Key: | `user.*`
Type: | string
Condition: |

`vlan`

The VLAN ID to attach to

Key: | `vlan`
Type: | integer
Condition: |