How to configure trunk on Cisco Catalyst Switch

Hello Rene i want to know what diffrent between trk1-2 in hp and cisco trunk for example when i want to trunk a uplink in hp aruba switch i do this comannd trunk port2 trk3 trunk and tagged in vlan20 tagged trk3

 vlan 20
   name "IT"
   tagged Trk1-Trk3
   no ip address
   exit

and i want to know how to tagged a port in a vlan in cisco switch can you answer me please?
or at cisco system we do this command

switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk allowed vlan 1,20