inter-switch VLAN communication

closetgeek

Can anyone shed some light on the inter-switch VLAN communication concept I'm a little unsure on that concept....

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Comments

gojericho0

are you referring to communicating between vlans on different switches?

If so is there something specific you are having problems with.

Bert McGert

Are you referring to inter-vlan routing (trunks, subinterfaces, etc), or are you referring to VTP or just Ethernet in general?

closetgeek

What is the purpose of this mechanism...and encapsulation, ISL, 802.1Q.

Thanks....

kryolla

what have you read about it

gojericho0

a trunk allows multiple vlans to traverse a link

in order to distinguish which vlan each packet belongs to an encapsulation is needed. otherwise the device receiving packets would have no way of sorting which packet belongs to which vlan and they would all look the same

blackninja

Go read about it - come back and ask about the parts you don't understand

ColbyG

blackninja wrote: »

Go read about it - come back and ask about the parts you don't understand

this...

Bert McGert

closetgeek wrote: »

What is the purpose of this mechanism...and encapsulation, ISL, 802.1Q.

They allow electrical signals to be passed between computational systems that have certain differences between them.