3com 2948-SFP Plus User Guide

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C
HAPTER 8: 
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ONFIGURING 
VLANS
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C
ONFIGURING VLANS
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This section contains the following topics:
■   VLAN Overview
■   Viewing VLAN Details
■   Viewing VLAN Port Details
■   Creating VLANs
■   Modifying VLAN Settings
■   Modifying Port VLAN Settings
■   Removing VLANs
VLANs are logical subgroups with a Local Area Network (LAN) which 
combine user stations and network devices into a single unit, regardless 
of the physical LAN segment to which they are attached. VLANs allow 
network traffic to flow more efficiently within subgroups. VLANs use 
software to reduce the amount of time it takes for network changes, 
additions, and moves to be implemented. VLANs restrict traffic within 
the VLAN.
VLAN1 is the management VLAN. You can only manage the switch 
through a port that is an untagged member of VLAN1.
VLANs have no minimum number of ports, and can be created per 
unit, per device, or through any other logical connection combination, 
since they are software-based and not defined by physical attributes.
VLAN Overview