Port mapping mode table is used to set mapping mode of the port.
When a qos profile is applied to a port, the profile can have two working ways:
1)The profile is the same for all the users connected to the port;
2)The profile can be different for different users connected to the port;
Port-based mode means the profile is the same for all the users.
User-based mode means the profile is different for different users.
Default value is port-based.