Data packet transmitting method and network device using same

A network device and packet transmission technology, applied in the field of communication, can solve the problems of increasing the transmission delay of data packets, the central processing unit is too late to forward, discard, etc., to achieve the effect of reducing traffic burden and increasing network efficiency

Inactive Publication Date: 2011-10-12
CONNECTION TECH SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The disadvantage of the existing method is that, limited by the central processing unit 132 has a certain flow limit, in the existing network device 13, no matter what type of data packet, because of its transmission path must pass through the central processing unit 132, so obvious Will cause the flow burden of central processing unit 132, and increase the transmission delay of data packet;

Method used

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  • Data packet transmitting method and network device using same
  • Data packet transmitting method and network device using same
  • Data packet transmitting method and network device using same

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Embodiment Construction

[0038] see figure 2 , which is a schematic diagram of a network device in a preferred embodiment of the present invention. Wherein, one end of the network device 23 located in the network communication system 2 is connected to the wide area network (WAN) end 21, and the other end is connected to the local area network (LAN) end 22, and the local area network end 22 has a plurality of computers 221; The network device 23 is used to transmit the data packets of the wide area network end 21 to a plurality of computers 221 of the local area network end 22 .

[0039] Furthermore, the network device 23 includes a switch chip 231, a forwarding table 233, and a central processing unit 232; wherein, the switch chip 231 has a wide area network interface 2311, a plurality of local area network interfaces 2312, a first connection port P1 and a second connection Port P2, the wide area network interface 2311 is connected to the wide area network terminal 21, a plurality of local area netw...

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PUM

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Abstract

The invention relates to a data packet transmitting method and a network device using the same. The network device at least comprises a central processing unit and a switch chip, and the switch chip comprises at least one wide area network interface and multiple local area network interfaces. In the invention, a multicast packet is directly transmitted to corresponding multiple local area network interfaces through the wide area network interface; and the central processing unit is not needed in the transmission, thus effectively increasing the transmission speed of the multicast packet.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method for transmitting data packets in a Network Address Translation (NAT) working mode to increase the transmission rate of multicast packets and a network device using the method. Background technique [0002] see figure 1 , which is a schematic diagram of an existing network communication system. The network communication system 1 is used to transmit the data flow of the wide area network (WAN) end 11 to multiple units of the local area network (LAN) end 12 via an existing network device 13 Computer 121; Wherein, network device 13 comprises switch chip 131 and central processing unit (CPU) 132, and one side of switch chip 131 is provided with a wide area network interface 1311, and it is connected to wide area network end 11, and switch chip 131 A plurality of LAN interfaces 1312 are provided on the other side, which are connected to a plurality of computers 121 of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/12H04L45/16
Inventor 傅昌五
Owner CONNECTION TECH SYST
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