Do i need a vlan configured on a switch in ordre for traffic on that vlan to traverse the switch on a trunk.
So, i have trunks between switch 1 and 2. and i have a trunk between switch 1 and 3. I have access ports in vlan 100 on both siwtch 2 and 3. Does switch 1 need to have vlan 100 enabled to allow traffic between switch 2 and 3.
Where is my mind gone???
VLANs are created on Layer 2 switches to control broadcasts and enforce the use of a Layer 3 device for communications. Each VLAN is created in the local switch's database for use. If a VLAN is not known to a switch, that switch cannot transfer traffic across any of its ports for that VLAN. So in order for VLAN 100 to be trunked across switch 1 it needs to be aware of VLAN 100.