BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a diagram showing an exemplary configuration of a hub apparatus according to the prior art;
FIG. 2 is a diagram illustrating the increase/decrease of policer tokens and the acquisition of input packet data according to the prior art;
FIG. 3 is a diagram showing a configuration of a hub apparatus according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a principle of an embodiment of the present invention;
FIG. 5 is a diagram illustrating the increase/decrease of policer tokens and the acquisition of input packet data according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating distribution of surplus tokens to policers within a policer unit;
FIG. 7 is a diagram illustrating distribution of policer tokens to different classes within a policer; and
FIG. 8 is a diagram illustrating a data format of input packet data using the VLAN.