Switchport

• switchport mode access | trunk
  • switchport mode access
  • switchport mode trunk

• switchport access vlan 45452

Change vlan configuration to port Gi1/0/99

conf t
int Gi1/0/99
switchport mode access
switchport access vlan 4545

interface FastEthernet0/11
 switchport trunk allowed vlan 10,20
 switchport mode access

View all interfaces status:

• show interfaces switchport (Extended format)
• show vlan br

Related commands

• show running-config interface TenGigabitEthernet 1/0/12
• show interfaces
• interface

See also

• VLAN, VTP, VLAN Access-List (VACL), IOS: Create a VLAN, Change vlan configuration, show vlan, show vlan brief, show vlan summary, show vtp status, switchport, set vlan, vtp mode transparent
• Cisco IOS: Cisco IOS XE, Config (mode), VLANs, Cisco IOS logging, VTP, ACLs, show logging, show logging history, show interface status, debug, archive, show archive, conf t, int, ip http server, ip ssh, ip address, vty, show mac address-table, show access-list, Access-list, ip access-group, admin

https://community.cisco.com/t5/routing/can-we-assign-multiple-vlans-to-same-physical-switch-port-access/td-p/2289824