Message forwarding method and switch

A technology of message forwarding and switching, applied in the field of communication, can solve the problem that messages cannot communicate with each other

Active Publication Date: 2021-11-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing traditional switches generally use table lookup and forwarding, but minimalist devices have no MAC entries, and packets cannot be communicated between simplified devices and traditional switches

Method used

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  • Message forwarding method and switch
  • Message forwarding method and switch
  • Message forwarding method and switch

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Experimental program
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Embodiment Construction

[0063] The technical solution in this application will be described below with reference to the accompanying drawings.

[0064] figure 1 It is a schematic diagram of an application scenario provided by the embodiment of this application. This application scenario involves packet forwarding, and it is mainly used in the mixed deployment of X-Lean devices and traditional switches. Such as figure 1 As shown, there are mainly three types of switches involved, and the "S" device is a traditional switch without any changes, and the way of table lookup and forwarding is still used. The "X" device (simplified device) is an access or aggregation switch, which only performs direct forwarding and has no MAC entry. The "1" device is the core switch and the control center of the entire network, which carries centralized routing and forwards the traffic of the entire network. The embodiment of this application mainly involves two aspects. One is the processing of the uplink message by t...

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PUM

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Abstract

The present application provides a message forwarding method and a switch. The method includes: the first switch generates a first downlink message; the first downlink message includes a Y+1 layer Ethernet header, and the inner layer Ethernet header in the Y+1 layer Ethernet header of the first downlink message includes The first destination MAC address, the first source MAC address and the first Ethernet type, the first destination MAC address is the MAC address of the first terminal device, and each layer of the Y+1 layer Ethernet header of the first downlink message The layer Ethernet header includes the second destination MAC address, the first source MAC address, and the first Ethernet type, and the second destination MAC address in each outer layer Ethernet header corresponds to the MAC addresses of Y first-type switches in turn, and each outer layer The port number of the corresponding switch of the first type is included after the Ethernet header, and Y is an integer greater than or equal to 1; the first switch forwards the first downlink message. A hybrid network of new devices and traditional switches can be realized.

Description

technical field [0001] The application relates to the communication field, in particular to a message forwarding method and a switch. Background technique [0002] Carriers or enterprises generally do not want to be bound by a single vendor when deploying networks. In addition, in scenarios where switches are gradually upgraded or old ones are simply reused, mixed deployment of new devices and traditional switches will occur. Therefore, it is particularly important for new devices to support mixed deployment with traditional switches. [0003] In the simplified enterprise network architecture, there are no traditional switches, but only simplified devices. The core switch is the control center of the entire network, which carries centralized routing and forwards the traffic of the entire network. The minimalist device can be used as an access switch or an aggregation switch, and only performs direct forwarding without a media access control (media access control, MAC) ent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/947H04L45/74
CPCH04L45/74H04L49/25
Inventor 臧力沈利胡寅亮范多亮牛翔平
Owner HUAWEI TECH CO LTD
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