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gnt-network(8) Ganeti | Version @GANETI_VERSION@

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Name

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gnt-network - Ganeti network administration

Synopsis

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**gnt-network** {command} [arguments...]

DESCRIPTION

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The **gnt-network** command is used for network definition administration

in the Ganeti system.

COMMANDS

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ADD

~~~

| **add**

| [--network=*NETWORK*]

| [--gateway=*GATEWAY*]

| [--add-reserved-ips=*RESERVEDIPS*]

| [--network6=*NETWORK6*]

| [--gateway6=*GATEWAY6*]

| [--mac-prefix=*MACPREFIX*]

| [--network-type=*NETWORKTYPE*]

| {*network*}

Creates a new network with the given name. The network will be unused

initially. To connect it to a node group, use ``gnt-network connect``.

``--network`` option is mandatory. All other are optional.

The ``--network`` option allows you to specify the network in a CIDR notation.

The ``--gateway`` option allows you to specify the default gateway for this

network.

The ``--network-type`` can be none, private or public.

IPv6 semantics can be assigned to the network via the ``--network6`` and

``--gateway6`` options. IP pool is meaningless for ipv6 so those two values

can be used for EUI64 generation from a NIC's mac value.

MODIFY

~~~~~~

| **modify**

| [--gateway=*GATEWAY*]

| [--add-reserved-ips=*RESERVEDIPS*]

| [--remove-reserved-ips=*RESERVEDIPS*]

| [--network6=*NETWORK6*]

| [--gateway6=*GATEWAY6*]

| [--mac-prefix=*MACPREFIX*]

| [--network-type=*NETWORKTYPE*]

| {*network*}

Modifies parameters from the network.

Unable to modify network (ip range). Create a new network if you want to do

so. All other options are documented in the **add** command above.

REMOVE

~~~~~~

| **remove** {*network*}

Deletes the indicated network, which must be not connected to any node group.

LIST

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| **list** [--no-headers] [--separator=*SEPARATOR*] [-v]

| [-o *[+]FIELD,...*] [network...]

Lists all existing networks in the cluster.

The ``--no-headers`` option will skip the initial header line. The

``--separator`` option takes an argument which denotes what will be

used between the output fields. Both these options are to help

scripting.

The ``-v`` option activates verbose mode, which changes the display of

special field states (see **ganeti(7)**).

The ``-o`` option takes a comma-separated list of output fields.

If the value of the option starts with the character ``+``, the new

fields will be added to the default list. This allows to quickly

see the default list plus a few other fields, instead of retyping

the entire list of fields.

The available fields and their meaning are:

name

    the group name

group_count

    the number of nodegroups connected to the network

group_list

    the list of nodegroups connected to the network

inst_cnt

    the number of instances use the network

inst_list

    the list of instances that at least one of their NICs is assigned

    to the network

external_reservations

    the IPs that cannot be assigned to an instance

free_count

    how many IPs have left in the pool

gateway

    the networks gateway

map

    a nice text depiction of the available/reserved IPs in the network

reserved_count

    how many IPs have been reserved so far in the network

network6

    the ipv6 prefix of the network

gateway6

    the ipv6 gateway of the network

mac_prefix

    the mac_prefix of the network (if a NIC is assigned to the network it

    it gets the mac_prefix of the network)

network_type

    the type of the network (public, private)

If no group names are given, then all groups are included. Otherwise,

only the named groups will be listed.

LIST-FIELDS

~~~~~~~~~~~

**list-fields** [field...]

List available fields for networks.

RENAME

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| **rename** {*oldname*} {*newname*}

Renames a given network from *oldname* to *newname*. NOT implemeted yet

INFO

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| **info** [network...]

Displays information about a given network.

CONNECT

~~~~~~~

| **connect** {*network*} {*group*} {*mode*} {*link*}

Connect a network to a given nodegroup with the netparams (*mode*, *link*).

Every nic will inherit those netparams if assigned in a network.

*group* can be ``all`` if you want to connect to all existing nodegroups

DISCONNECT

~~~~~~~~~~

| **disconnect** {*network*} {*group*}

Disconnect a network to a nodegroup. This is possible only if no instance

is using the network.