3Com 3CDSG8-US User Guide - Page 47

VLANS, VLAN Membership, Introduction to VLANs

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VLANS 47 7 VLANS 7.1 VLAN Membership This page allows you to create up to 64 VLANs. You can also delete the VLANs or make changes to the VLAN membership and behavior of individual ports. VLANs are powerful but can be difficult to set up properly. If you are unfamiliar with VLANs please see the Introduction to VLANs. To create a VLAN, enter a VLAN ID into the VLAN ID field. After clicking the ADD button, you will be directed to the 802.1Q VLAN Group page to add port members to the VLAN. Each row of the table corresponds to one VLAN. There are four main buttons associated with this page: • HELP - Displays this text. • ADD - Creates a VLAN with the inputted VLAN ID. • MODIFY - Choose a VLAN to modify. • DELETE - Delete a VLAN from the VLAN table. 7.1.1 Introduction to VLANs VLANs (or Virtual LANs) are logical partitions of the physical LAN. You can use VLANs to: • Increase network performance • Increase internal network security • Create separate broadcast domains

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VLANS
47
7
VLANS
7.1
VLAN Membership
This page allows you to create up to 64 VLANs. You can also delete the VLANs or make changes
to the VLAN membership and behavior of individual ports. VLANs are powerful but can be
difficult to set up properly. If you are unfamiliar with VLANs please see the
Introduction to
VLANs
. To create a VLAN, enter a VLAN ID into the VLAN ID field. After clicking the ADD
button, you will be directed to the
802.1Q VLAN Group
page to add port members to the
VLAN. Each row of the table corresponds to one VLAN.
There are four main buttons associated with this page:
•
HELP
- Displays this text.
•
ADD
- Creates a VLAN with the inputted VLAN ID.
•
MODIFY
- Choose a VLAN to modify.
•
DELETE
- Delete a VLAN from the VLAN table.
7.1.1
Introduction to VLANs
VLANs (or Virtual LANs) are logical partitions of the physical LAN. You can use VLANs to:
•
Increase network performance
•
Increase internal network security
•
Create separate broadcast domains