1Q tag, into the Ethernet frame header. How Tagged Ports Function A tagged port, often referreduced to as a trunk port, is designed to carry traffic for multiple VLANs simultaneously.
Native VLAN Identification and Frame Tagging Mechanics
Understanding the difference between a tagged and untagged port is fundamental for anyone managing a network, whether in a corporate data center or a home environment. The choice between a tagged and untagged port is not arbitrary; it depends on whether the connected device is network-aware, like a router or another switch, or a simple endpoint, like a desktop computer or printer.
Defining the Core Concepts At the heart of VLAN implementation lies the configuration of switch ports. Consequently, a single physical interface on a tagged port can transport a complex mix of segregated network segments, making it the essential backbone for connecting switches or linking a switch to a router that handles inter-VLAN routing.
Native VLAN Identification in Frame Tagging
1Q) to allow multiple VLANs on the same wire Assigns a single VLAN ID to traffic and strips the tag before sending to the device Device Awareness Connects devices that understand and process VLAN tags Connects devices that operate without any VLAN awareness. It accomplishes this by inserting a 4-byte VLAN tag, known as an IEEE 802.
More About Tagged vs untagged port
Looking at Tagged vs untagged port from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Tagged vs untagged port can make the topic easier to follow by connecting earlier points with a few simple takeaways.
