GarrettCom MNS-6K 4.1.4 Manual De Usuario

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hort for virtual  LAN (VLAN), a VLAN creates separate collision domains or network 
segments that can span multiple Magnum 6K family of switches.  A VLAN is a group of ports 
designated by the switch as belonging to the same broadcast domain. The IEEE 802.1Q 
specification establishes a standard method for inserting VLAN membership information into 
Ethernet frames. 

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LAN’s provide the capability of having two (or more) Ethernet segments 

-exist on common hardware. The reason for creating multiple segments 

in Ethernet is to isolate collision domains. VLANs can isolate groups of 

users, or divide up traffic for security, bandwidth management, etc. VLANs are widely 
used today and are here to stay. VLANs need not be in one physical location. They can be 
spread across geography or topology. VLAN membership information can be propagated 
across multiple Magnum6K switches. 
 

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78 – VLAN as two separate collision domains. The top part of the figure shows two 

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