ZyXEL VES-1616 Manuel d'utilisateur télécharger pdf (Page 34)

ZyXEL VES-1616/24FA-5x Series Support Notes

7. After entering the commands, use the “write memory” command under the

enable mode to save your configuration.

What is IEEE 802.1Q Tag-based VLAN?

Tag-based VLAN Overview

In the IEEE 802.1Q standard, Tag-based VLAN uses an extra tag in the MAC

header to identify the VLAN membership of a frame across bridges. This tag is

used for VLAN and QoS (Quality of Service) priority identification. The VLANs can

be created statically by an administrator or dynamically through GVRP. The

VLAN ID associates a frame with a specific VLAN and provides the information

that switches need to process the frame across the network. A tagged frame is

four bytes longer than an untagged frame and contains two bytes of TPID (Tag

Protocol Identifier, residing within the type/length field of the Ethernet frame) and

two bytes of TCI (Tag Control Information, starts after the source address field of

the Ethernet frame).

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ZyXEL VES-1616 Manuel d'utilisateur Page 34