Configure a Trunk Port

1. Enter the configuration mode for the interface.

   TOR-1 SEFOS# configure terminal
   TOR-1 SEFOS(config)# interface extreme-ethernet 0/1
   TOR-1 SEFOS(config-if)#
   

2. Set the switchport mode.

   TOR-1 SEFOS(config-if)# switchport mode trunk
   TOR-1 SEFOS(config-if)# end
   TOR-1 SEFOS#
   

   After you configure the port as a trunk port, it becomes a member port of all active VLANs in the system.

3. Display the VLAN-related parameters for port 0/1.

   TOR-1 SEFOS# show vlan port config port ex 0/1
    
   Vlan Port configuration table
   -------------------------------
   Port Ex0/1
    Port Vlan ID                        : 1
    Port Acceptable Frame Type          : Admit All
    Port Ingress Filtering              : Disabled
    Port Mode                           : Trunk
    Port Gvrp Status                    : Enabled
    Port Gmrp Status                    : Enabled
    Port Gvrp Failed Registrations      : 0
    Gvrp last pdu origin                : 00:00:00:00:00:00
    Port Restricted Vlan Registration   : Disabled
    Port Restricted Group Registration  : Disabled
    Mac Based Support                   : Disabled
    Subnet Based Support                : Disabled
    Port-and-Protocol Based Support     : Enabled
    Default Priority                    : 0
    Filtering Utility Criteria          : Default
    Port Protected Status               : Disabled
    -------------------------------------------------------