I have several layer 3 switches in my network and layer 2 switches directly connected with the layer 3 switches. Some of the L2 switches belong only to one Vlan (etc Vlan 35). What's the best solution. The link between L3 and L2 to be a trunk link or an access link on that Vlan?
Generally speaking you usually have 2 vlans per switch at a minimum. One for clients and one for management. So it is common to have the uplinks as trunks.
However if you want to keep it very simple, have the management IP address out of the client vlan and are sure you do not need to have more than vlan per switch you can make it an access port.
Personally i would have management on different vlan and use trunk links.