Hi @Aldughaythir,
Follow the below config steps:
On LSW1:
[Switch] interface gigabitethernet 0/0/1
[Switch-GigabitEthernet0/0/1] port link-type access
[Switch-GigabitEthernet0/0/1] port default vlan 10
[Switch-GigabitEthernet0/0/1] quit
[Switch] interface gigabitethernet 0/0/2
[Switch-GigabitEthernet0/0/2] port link-type access
[Switch-GigabitEthernet0/0/2] port default vlan 20
[Switch-GigabitEthernet0/0/2] quit
[Switch] interface GigabitEthernet 0/0/3
[Switch-GigabitEthernet 0/0/3]port link-type trunk
[Switch-GigabitEthernet 0/0/3]port trunk allow-pass vlan 10 20
[Switch-GigabitEthernet 0/0/3]quit
On LSW2:
[Switch] interface GigabitEthernet 0/0/1
[Switch-GigabitEthernet 0/0/1]port link-type trunk
[Switch-GigabitEthernet 0/0/1]port trunk allow-pass vlan 10 20
[Switch-GigabitEthernet 0/0/1]quit
[Switch] interface gigabitethernet 0/0/3
[Switch-GigabitEthernet0/0/3] port link-type access
[Switch-GigabitEthernet0/0/3] port default vlan 10
[Switch-GigabitEthernet0/0/3] quit
[Switch] interface gigabitethernet 0/0/2
[Switch-GigabitEthernet0/0/2] port link-type access
[Switch-GigabitEthernet0/0/2] port default vlan 20
[Switch-GigabitEthernet0/0/2] quit
Hope it helps!