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VLANs
Issue 1 July 2006 117
VLANs
VLAN Overview
A VLAN is made up of a group of devices on one or more LANs that are configured so that they
operate as if they form an independent LAN, when in fact they may be located on a number of
different LAN segments. VLANs can be used to group together departments and other logical
groups, thereby reducing network traffic flow and increasing security within the VLAN.
The figure below illustrates how a simple VLAN can connect several endpoints in different
locations and attached to different hubs. In this example, the Management VLAN consists of
stations on numerous floors of the building and which are connected to both Device A and
Device B.
Display the current status of the
MAC aging function
show mac-aging
Display the MAC aging time in
minutes.
show mac-aging-time
Table 30: Ethernet Configuration CLI Commands 3 of 3
In order to... Use the following command...
3 of 3