Netgear M4100-12GF (GSM7212F) - ProSAFE Gigabit L2+ Managed Switch Guía Del Software

This section describes the commands used for switch port mode.

Use this command to configure the mode of a switch port as access, trunk, or general:

Trunk mode. In trunk mode, the port becomes a member of all VLANs on the switch 
unless specified in the allowed list in the switchport trunk allowed vlan 
command. The PVID of the port is set to the native VLAN as specified in the 
switchport trunk native vlan

 command. This means that trunk ports accept both 

tagged and untagged packets. Untagged packets are processed on the native VLAN and 
tagged packets are processed on the VLAN for which the ID is contained in the packet. 
MAC learning is performed on both tagged and untagged packets. Tagged packets that 
are received with a VLAN ID of which the port is not a member are discarded and MAC 
learning is not performed.

The trunk ports always transmit packets untagged on a native VLAN.

Access mode. In access mode, the port becomes a member of only one VLAN. The port 

sends and receives untagged traffic. The port can also receive tagged traffic. Ingress 
filtering is enabled on the port. This means that when the VLAN ID of a received packet is 
not identical to the access VLAN ID, the packet is discarded.

General mode. In general mode, you can perform custom configuration of the VLAN 
membership, PVID, tagging, ingress filtering, and so on. The general mode is legacy 
behavior of the switch port configuration and you use legacy CLI commands to configure 
the port in general mode.

MAC Address

A MAC address for which the switch has forwarding and or filtering information. The 

format is 6 or 8 two-digit hexadecimal numbers that are separated by colons, for example 
01:23:45:67:89:AB. In an IVL system the MAC address will be displayed as 8 bytes.

VLAN ID

A VLAN Identifier (VID) is associated with each VLAN.

Default

General mode

Format

switchport mode {access | trunk | general}

Mode

Interface Config