Network relay apparatus
AssigneeAlaxala Networks Corporation
InventorsYoshihiro Nakao, Shinichi Akahane, Masayuki Shinohara, Atsushi Serizawa
Life of this patent
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Abstract
A network relay apparatus which conducts data transfer by using a plurality of network LSIs includes a transfer engine unit having at least two network LSIs and a central control unit which controls the operation state of the network relay apparatus. The transfer engine unit includes the network LSIs capable of changing over at least one of a clock and an operation which differ every function block, a load judgment unit for judging a load laid upon each of function blocks in the network LSI, and a frequency voltage control unit for individually changing over at least one of the clock and operation voltage supplied to each function block on the basis of the load judged by the load judgment unit.
Claims12
A power control method in a first network relay apparatus, the first network relay apparatus including a plurality of function blocks and being connected to a plurality of lines to conduct data transfer via the lines, the power control method comprising the steps of:
- receiving a control frame from a second network relay apparatus;
- determining a load of a function block, of the plurality of function blocks, the function block implementing at least one of a data transmission process, a statistical process, a QoS (Quality of Service) control process, and a load measurement process, the load being determined by analyzing the received control frame, the function block corresponding to a line, of the plurality of lines, via which the control frame is received;
- and
- supplying an operation voltage to the function block depending on the determined load of the function block.
A first network relay apparatus including a plurality of function blocks and being connected to a plurality of lines to conduct data transfer via the lines, the first network apparatus comprising:
- a receiver unit which receives a control frame from a second network relay apparatus;
- a load determining unit which determines a load of a function block, of the plurality of functions blocks, the function block implementing at least one of a data transmission process, a statistical process, a QoS (Quality of Service) control process, and a load measurement process, the load being determined by analyzing the received control frame, the function block corresponding to a line, of the plurality of lines, via which the control frame is received;
- and
- a voltage control unit which supplies an operation voltage to the function block depending on the determined load of the function block.
Dependencies are inferred from the claim text.