Basic concepts

An MFF-enabled device provides two types of ports: user ports and network ports.

User port

An MFF user port is directly connected to a host and processes the following packets differently:

Network port

An MFF network port is connected to a networking device, such as an access switch, a distribution switch or a gateway. A network port processes the following packets differently:

You need to configure the following ports as network ports:

A network port is not always an upstream port.

If you enable MFF for a VLAN, each port in the VLAN must be an MFF network or user port.

Link aggregation is supported by network ports in an MFF-enabled VLAN, but is not supported by user ports in the VLAN. You can add network ports to link aggregation groups, but cannot add user ports to link aggregation groups. For more information about link aggregation, see Layer 2—LAN Switching Configuration Guide.