3com 2500 User Guide
2
VLAN
S
ON
THE
C
ORE
B
UILDER
2500 S
YSTEM
In this chapter:
■
™
2500 system
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About VLANs
Virtual LANs (VLANs) are logical subnetworks composed of selected
CoreBuilder 2500 network interfaces. VLANs help minimize broadcast
and multicast traffic across networks. VLANs also make it easier for you
to move, add, and change end stations.
CoreBuilder 2500 network interfaces. VLANs help minimize broadcast
and multicast traffic across networks. VLANs also make it easier for you
to move, add, and change end stations.
In the CoreBuilder 2500 system, VLANs allow you to:
■
Create independent broadcast domains to optimize network
performance and create firewalls
performance and create firewalls
■
Form flexible user groups independent of the users’ physical network
locations
locations
Types of VLANs
You can use several types of VLANs to group users:
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Port group VLANs
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MAC address group VLANs
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Application-oriented VLANs
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Protocol-sensitive VLANs
The packet filtering capabilities in the CoreBuilder 2500 system provide
support for port group, MAC address group, and application-oriented
VLANs. For information about how to filter port groups and MAC address
groups, see the Operation Guide and the Administration Console User
Guide. For information about how to configure and manage
protocol-sensitive VLANs, see the description of the Administration
Console menus in Chapter 9.
support for port group, MAC address group, and application-oriented
VLANs. For information about how to filter port groups and MAC address
groups, see the Operation Guide and the Administration Console User
Guide. For information about how to configure and manage
protocol-sensitive VLANs, see the description of the Administration
Console menus in Chapter 9.