The VLAN is mehod was used for Prevent Congestion & Broadcast within network.
IntroductionVLAN is divided Segment or (Logical Design) of the Switch [Working at layer 1 or 2 , 3] && Ignore the physical connection.
image source : thebryantadvantage.com/Network+ExamTutorialVLANsIllustratedAndExplained.htm
Advantages
-Anti Broadcast Traffic.
(You can use MRTG || PRTG for monitoring broadcast traffic.)
-Configure or divided [3 vlan] , but using 1 device.
-If you need to change VLAN or subnet etc
,You can make is easy from by configure leyer3 device.
Collision Domain - is Type&Group of Collision.
| packet(layer3).| ----> Router 1 port = 1 collision domain. && 10 port = 10 collision domain.
------------------
| frame(layer2) | ---- > Switch 1 port = 1 collision domain. && 10 port = 10 collision domain.
| signal(layer1) | ---- > Hub all port using = 1 collision domain.
Broadcast Domain - is type&group of Broadcase. [1broadcast domain = 1 network].
| Router(layer3) .| ----> 1 port connected device is 1 broadcast domain.
-----------------------
| switch (Using Vlan).| ----> 1 vlan = 1 Broadcast domain. && 10 vlan = 10 Broadcast domain.
-----------------------
| switch(layer2) | ---- > Switch all port = 1 broadcast domain.
| hub(layer1) | ---- > Hub all port = 1 broadcast domain.
Trunk port - Is line for connecting network devices.
================================================================
{pc1}------[switch]
| |
| |
{pc2} {pc1}
V L A N 1 V L A N 2
=================================================================