Switch Setup; Chapter 27 Switch Setup; Switch Setup Overview; Introduction To Vlans - ZyXEL Communications XGS2220 Series User Manual

30/54-port gbe/sfp smart managed layer-3 switch

Table of Contents

Use this screen to do the Switch's basic setup configuration, for example, VLAN (Virtual Local Area

Network) type, enabling switching protocols, and MAC learning aging time setup.

A VLAN (Virtual Local Area Network) allows a physical network to be partitioned into multiple logical

networks. Devices on a logical network belong to one group. A device can belong to more than one

group. With VLAN, a device cannot directly talk to or hear from devices that are not in the same groups;

the traffic must first go through a router.

In MTU (Multi-Tenant Unit) applications, VLAN is vital in providing isolation and security among the

subscribers. When properly configured, VLAN prevents one subscriber from accessing the network

resources of another on the same LAN, thus a user will NOT see the printers and hard disks of another

user in the same building.

VLAN also increases network performance by limiting broadcasts to a smaller and more manageable

logical broadcast domain. In traditional switched environments, all broadcast packets go to each and

every individual port. With VLAN, all broadcasts are confined to a specific broadcast domain.

Note: VLAN is unidirectional; it only governs outgoing traffic.

27.2 Switch Setup

Click SYSTEM > Switch Setup in the navigation panel to display the screen as shown. The VLAN setup

screens change depending on whether you choose 802.1Q or Port Based in the VLAN Type field in this

XGS2220 Series User's Guide