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IEEE 802.1Q, often referred to as Dot1q, is the networking standard that supports virtual local area networking (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.
VLANs operate at the data link layer of the OSI model. Administrators often configure a VLAN to map directly to an IP network, or subnet, which gives the appearance of involving the network layer. Generally, VLANs within the same organization will be assigned different non-overlapping network address ranges. This is not a requirement of VLANs.
On Cisco Devices, VTP (VLAN Trunking Protocol) maintains VLAN configuration consistency across a single Layer 2 network. VTP uses Layer 2 frames to manage the addition, deletion, and renaming of VLANs from switches in the VTP client mode. VTP is responsible for synchronizing VLAN information within a VTP domain and reduces the need to configure ...
Static configuration of VLAN membership information via management mechanisms, which allow configuration of static VLAN registration entries. Combined static and dynamic configuration, in which some VLANs are configured via management mechanisms and for other VLANs, MVRP is relied on to establish the configuration.
The newly inserted VLAN header's EtherType is set to 0x8100 to identify the following data as a VLAN tag. 12 bits are used for the VLAN ID, the other bits in the VLAN fields are filled in according to the QoS policy, etc. of the interface at which the tag imposition occurred.
802.1aq is the IEEE-sanctioned link state Ethernet control plane for all IEEE VLANs covered in IEEE 802.1Q. [28] The Shortest Path Bridging virtual local area network identifier (VLAN ID) or Shortest Path Bridging VID (SPBV) provides a capability that is backward compatible with spanning tree technologies. The SPBM provides additional values ...
Pinning an AOL app to your Windows 10 Start menu is a simple task, follow the steps below. Open the Windows Start menu and click All apps. Locate the AOL app in the list. Right-click on the app name. A small menu will appear. Click Pin to Start to add this app to your Start menu.
EtherType is also used as the basis of 802.1Q VLAN tagging, encapsulating packets from VLANs for transmission multiplexed with other VLAN traffic over an Ethernet trunk. EtherType was first defined by the Ethernet II framing standard and later adapted for the IEEE 802.3 standard. EtherType values are assigned by the IEEE Registration Authority.