mirror of
https://github.com/vyos/vyos-documentation.git
synced 2025-10-26 08:41:46 +01:00
50 lines
1.9 KiB
Plaintext
50 lines
1.9 KiB
Plaintext
IEEE 802.1q, often referred to as Dot1q, is the networking standard that supports
|
|
virtual LANs (VLANs) on an IEEE 802.3 Ethernet network. The standard defines a
|
|
system of VLAN tagging for Ethernet frames and the accompanying procedures to be
|
|
used by bridges and switches in handling such frames. The standard also contains
|
|
provisions for a quality-of-service prioritization scheme commonly known as IEEE
|
|
802.1p and defines the Generic Attribute Registration Protocol.
|
|
|
|
Portions of the network which are VLAN-aware (i.e., IEEE 802.1q conformant) can
|
|
include VLAN tags. When a frame enters the VLAN-aware portion of the network, a
|
|
tag is added to represent the VLAN membership. Each frame must be distinguishable
|
|
as being within exactly one VLAN. A frame in the VLAN-aware portion of the network
|
|
that does not contain a VLAN tag is assumed to be flowing on the native VLAN.
|
|
|
|
The standard was developed by IEEE 802.1, a working group of the IEEE 802
|
|
standards committee, and continues to be actively revised. One of the notable
|
|
revisions is 802.1Q-2014 which incorporated IEEE 802.1aq (Shortest Path Bridging)
|
|
and much of the IEEE 802.1d standard.
|
|
|
|
802.1q VLAN interfaces are represented as virtual sub-interfaces in VyOS. The
|
|
term used for this is ``vif``.
|
|
|
|
.. cfgcmd:: set interfaces {{ var0 }} <interface> vif <vlan-id>
|
|
|
|
Create a new VLAN interface on interface `<interface>` using the VLAN number
|
|
provided via `<vlan-id>`.
|
|
|
|
You can create multiple VLAN interfaces on a physical interface. The VLAN ID
|
|
range is from 0 to 4094.
|
|
|
|
.. note:: Only 802.1Q-tagged packets are accepted on Ethernet vifs.
|
|
|
|
Example:
|
|
|
|
.. code-block:: none
|
|
|
|
set interfaces {{ var0 }} {{ var1 }} vif 10
|
|
|
|
.. cmdinclude:: ../_include/interface-address-with-dhcp.txt
|
|
:var0: {{ var0 }}
|
|
:var1: {{ var1 }}
|
|
:var2: vif
|
|
:var3: <vlan-id>
|
|
:var4: 10
|
|
|
|
.. cmdinclude:: ../_include/interface-common.txt
|
|
:var0: {{ var0 }}
|
|
:var1: {{ var1 }}
|
|
:var2: vif
|
|
:var3: <vlan-id>
|
|
:var4: 10 |