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Diffstat (limited to 'docs/interfaces/vlan.rst')
| -rw-r--r-- | docs/interfaces/vlan.rst | 38 |
1 files changed, 30 insertions, 8 deletions
diff --git a/docs/interfaces/vlan.rst b/docs/interfaces/vlan.rst index 76fadd3c..2c2a7ea6 100644 --- a/docs/interfaces/vlan.rst +++ b/docs/interfaces/vlan.rst @@ -1,11 +1,34 @@ -VLAN Sub-Interfaces (802.1Q) ----------------------------- -.. _interfaces-vlan: +.. _vlan-interface: -802.1Q VLAN interfaces are represented as virtual sub-interfaces in VyOS. The -term used for this is `vif`. Configuration of a tagged sub-interface is -accomplished using the configuration command -`set interfaces ethernet <name> vif <vlan-id>`. +VLAN (802.1q) +------------- + +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. + +802.1a VLAN interfaces are represented as virtual sub-interfaces in VyOS. The +term used for this is ``vif``. Configuration of a tagged sub-interface is +accomplished using the configuration command: +``set interfaces ethernet <name> vif <vlan-id>`` + +To assign a vif 100 using the VLAN 100 tag to physical interface eth1 use: .. code-block:: sh @@ -44,4 +67,3 @@ VLAN interfaces are shown as `<name>.<vlan-id>`, e.g. `eth1.100`: eth1.100 192.168.100.1/24 u/u VLAN 100 lo 127.0.0.1/8 u/u ::1/128 - |