Zyxel GS2200-24 Руководство пользователя онлайн [25/332] 810932

Chapter 1 Getting to Know Your Switch

GS2200-8/24 User’s Guide

Switching to higher-speed LANs such as ATM (Asynchronous Transmission Mode) is not feasible for

most people due to the expense of replacing all existing Ethernet cables and adapter cards,

restructuring your network and complex maintenance. The Switch can provide the same bandwidth

as ATM at much lower cost while still being able to use existing adapters and switches. Moreover,

the current LAN structure can be retained as all ports can freely communicate with each other.

Figure 3 High Performance Switched Workgroup Application

1.1.4 IEEE 802.1Q VLAN Application Examples

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

networks. Stations on a logical network belong to one group. A station can belong to more than one

group. With VLAN, a station cannot directly talk to or hear from stations that are not in the same

group(s) unless such traffic first goes through a router.

For more information on VLANs, refer to Chapter 9 on page 83.

1.1.4.1 Tag-based VLAN Example

Ports in the same VLAN group share the same frame broadcast domain thus increase network

performance through reduced broadcast traffic. VLAN groups can be modified at any time by

adding, moving or changing ports without any re-cabling.