When no VLAN is configured on a Switch, all frames belong to the default VLAN which is VLAN 1. Are those frames in the VLAN 1 tagged!?
And when talking about native VLANs, only untagged frames go in there - which probably means stuff like CDP- or VTP-informationen - so control traffic, right? And one should change the native VLAN to another VLAN than the default VLAN as somebody could listen to the control traffic, right?
I thought that this traffic would be in the management VLAN, but in the management VLAN is the traffic which is used to administer Switches (with Telnet, SSH, ...), right?
Just a few questions which didn't get answered by researching...