How should i configure my 3x HP switches?
I have a L3 HP 2910al poe and 2x HP 1910s (l2)
I have 2x vlans 1&20 on the l3 switch and vlan1 only on the 2x 1910s.
Should the port(s) going from the 2910al to the 2x 1910s be marked as a trunk port?
Currently they are left untagged.