Vlan - Intellinet 560559 User Manual

Web Smart Managed PoE Switches User Manual
4.2.1

VLAN

To configure VLAN, select Advanced Application>VLAN in the function menu bar.
【Information】
Traditional Ethernet uses a common communication medium and is based on
Carrier Sense Multiple Access/Collision Detect (CSMA/CD) data network
communication protocol. Overloaded hosts in a LAN will cause major collisions,
flooding broadcasts, subpar performance, or even the collapse of the Internet using
standard Ethernet. While substantial collisions can be avoided by connecting LANs
through switches, flooding broadcasts cannot be avoided because they consume a
lot of bandwidth resources and could result in significant security issues.
A network topology called a Virtual Local Area Network (VLAN) is set up using a
logical plan rather than a physical one. Switches use VLAN technology to manage
broadcast in LANs. You can divide a physical LAN into several logical LANs, each with
its own broadcast domain, by implementing VLANs. The communication between
hosts on the same VLAN is similar to that of a LAN. However, hosts in separate
VLANs are unable to directly connect with one another.
VLANs therefore restrict broadcast packets. Standard Ethernet is how hosts in the
same VLAN communicate, while Layer 3 switches, routers, and other Internet-
connected devices are the method of communication for hosts in separate VLANs.
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