Apparatus for scheduling packets and method of doing the same

Details Apparatus for scheduling packets and method of doing the same Apparatus for scheduling packets and method of doing the same

H - Electricity

04

L

H04L 12/56 (2006.01) H04L 1/00 (2006.01)

Patent

CA 2387208

An apparatus for scheduling packets for presenting a plurality of classes, includes a buffer (1) which accumulates received packets in each of the classes, a token administrator (6) which judges whether it is allowed to transmit a packet in each of the classes by virtue of a token associated with each of the classes, a scheduler (5) which determines a class to which a packet to be transmitted belongs, based on the judgment carried out by the token administrator, and a controller (3) which reads a packet of the class determined by the scheduler, out of the buffer, and transmits the thus read-out packet. The token administrator (6) includes a single first circuit for carrying out subtraction of a token and a single second circuit for carrying out addition of a token, and carries out subtraction and addition of a token for each of the classes by means of the single first circuit and the single second circuit.

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