Packet forwarding apparatus with transmission control function
AssigneeAlaxala Networks Corporation
InventorsTakeki Yazaki, Takeshi Aimoto
Life of this patent
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Abstract
A packet forwarding apparatus 200 transmits an inputted packet A to a first output port that is one of a plurality of output ports and transmits a dummy packet A storing the packet length of packet A to the other output port. A shaping unit 100-1 corresponding to the first output port uses the packet length of the packet A and a shaping unit 100-2 corresponding to the port other than the first output port uses a packet length in the dummy packet A so as to control the bandwidth of the packet A to be transmitted, thus controlling the total bandwidth of the packet A.
Claims18
A packet forwarding apparatus for determining a plurality of input ports, a plurality of output ports, and an output port group composed of at least one output port from information in a header of a packet and transmitting a packet from either of a first output port and a second output port included in the output port group, the packet forwarding apparatus comprising:
- a transmission control unit for controlling a bandwidth of the second output port included in the output port group, using a packet length of a first packet that is transmitted from the first output port included in the output port group.
A packet forwarding apparatus for receiving a packet from a plurality of input ports and transmitting a packet from a plurality of output ports, the packet forwarding apparatus comprising:
- a route decision unit for determining a transfer destination of a received packet, based on header information of the received packet;
- and
- a receiving unit for, if the route decision unit determines that a first output port out of an output port group composed of a plurality of output ports is a transfer destination of a first packet, transferring the first packet to a first transmission unit corresponding to the first output port and transmitting a notification of a packet length of the first packet to a second transmission unit corresponding to a second output port other than the first output port out of the output port group.
A bandwidth control method in a packet forwarding apparatus for transmitting a received packet from a plurality of ports, the bandwidth control method comprising the steps of:
- receiving a first packet;
- determining an output unit group for outputting the first packet;
- determining an output unit for outputting the first packet out of a plurality of output units corresponding to the determined output unit group;
- transferring the first packet to the determined output unit;
- and
- controlling, with a length of the first packet, transmission of a packet at an output unit other than the determined output unit out of a plurality of output units corresponding to the determined output unit group.
Dependencies are inferred from the claim text.