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Chapter 1 Getting to Know Your Switch
MGS3700-12C User’s Guide
27
1.1.3 High Performance Switching Example
The Switch is ideal for connecting two networks that need high bandwidth. In the
following example, use trunking to connect these two networks.
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 117.
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.