Data frame forwarding method and device

A forwarding method and data frame technology, applied in the field of communication, can solve the problems of insufficient capacity of MAC address table, inability to forward non-Ethernet packets, inability of Ethernet switches to forward data frames, etc., and achieve the effect of avoiding capacity insufficiency

Active Publication Date: 2018-09-14
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Since the number of correspondence between the destination MAC address and the outgoing port number in the MAC address table will increase with the increase of the number of data frames, if the number of data frames received by the Ethernet switch increases sharply, the capacity of the MAC address table will be insufficient. , so that the Ethernet switch cannot successfully forward all received data frames; in addition, if the data frame received by the Ethernet switch is a non-Ethernet packet, because the non-Ethernet packet has no source MAC address or destination MAC address, resulting in Ethernet switches will not be able to forward non-Ethernet packets

Method used

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  • Data frame forwarding method and device
  • Data frame forwarding method and device

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Embodiment Construction

[0025] figure 1 A flowchart of a data frame forwarding method provided by an embodiment of the present invention; figure 2 A network architecture diagram applicable to the data frame forwarding method provided by the embodiment of the present invention. In the embodiment of the present invention, when the data frames received by the Ethernet switch increase sharply, the capacity of the MAC address table is insufficient, and when the data frame received by the Ethernet switch is a non-Ether message, the Ethernet switch will not be able to forward the non-Ether message. A data frame forwarding method is provided, and the specific steps of the method are as follows:

[0026] Step S101, the receiving port of the first leaf node switch adds a message header to the received data frame to obtain the data frame to be forwarded, the message header includes a destination MAC address, and the destination MAC address is the same as that of the first leaf node The MAC address of the out...

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Abstract

The embodiment of the invention provides a data frame forwarding method and device. The method comprises the steps of adding a message header into a received data frame to obtain a to-be-forwarded data frame by a receiving port of a first leaf node switch; and sending the to-be-forwarded data frame to a root node switch which is connected with the first leaf node switch to enable the root node switch to send the to-be-forwarded data frame to a second leaf node switch based on a destination MAC address. According to the embodiment of the data frame forwarding method and device, the data frames received by the receiving port of the first leaf node switch are forwarded to the output port of the second leaf node switch and an MAC address table is unnecessary to establish through dynamically learning the MAC address, so that the insufficient capacity of the MAC address table is avoided when data frames received by the switch increase rapidly; in addition, the message header containing the destination MAC address is added in the data frame, so that the data frame, even being not an Ethernet message, also can be forwarded successfully.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a data frame forwarding method and device. Background technique [0002] In the field of communication technology, the Ethernet switch is an important device for forwarding data frames. The Ethernet switch queries the MAC address table according to the destination MAC address of the received data frame to obtain the output port number corresponding to the destination MAC address, so that the data frame Forwarding to the outgoing port, if there is no entry corresponding to the destination MAC address in the MAC address table, the Ethernet switch establishes an entry including the destination MAC address in the MAC address table by dynamically learning the MAC address. [0003] Since the number of correspondence between the destination MAC address and the outgoing port number in the MAC address table will increase with the increase of the number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/701
Inventor 田新雪马书惠
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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