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Method, device and system for controlling network MAC address conllision

A MAC address and network control technology, applied in the field of MAC address conflict control, can solve problems such as MAC address conflicts of multiple network nodes without a good solution, and achieve the effect of ensuring security

Active Publication Date: 2006-03-08
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0022] In summary, the existing four methods for controlling MAC address conflicts are only suitable for controlling MAC address conflicts between two ports in the same Ethernet layer 2 network node, and for MAC addresses generated between multiple network nodes There is no good solution to the conflict problem

Method used

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  • Method, device and system for controlling network MAC address conllision
  • Method, device and system for controlling network MAC address conllision
  • Method, device and system for controlling network MAC address conllision

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Embodiment

[0039] figure 2 It is a model diagram of an existing cascaded Ethernet network. The cascaded Ethernet is composed of an Ethernet Layer 2 network system 200 and multiple terminal devices and / or Ethernet Layer 3 network devices 210 cascaded in a wired or wireless manner. The Ethernet two-layer network system is composed of multiple Ethernet two-layer network nodes cascaded, and the Ethernet two-layer network node is preferably an Ethernet switch or a wireless access point AP. In this embodiment, an Ethernet switch is selected as an example to describe. The terminal device may be some user equipment, such as a personal computer, a mobile phone, or a PDA. In practical applications, the layer-3 network device 210 may be a router.

[0040] Such as figure 2 As shown, the cascaded Ethernet network shown in this embodiment is composed of a Layer 3 network device 210, an Ethernet Layer 2 network system 200, and user equipment 1-4 cascaded. The Ethernet layer 2 network system 200 ...

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Abstract

Through step of MAC address collision detection determines whether collision of MAC address happens between ports of network node at second layer of Ethernet. Through notifying step of MAC address collision control frame creates and sends a MAC address collision control frame. Through step of port control of MAC address collision carries out MAC address control for relevant ports. The invention also discloses device for controlling network MAC address collision including to more network ports, module for detecting MAC address collision, module for creating and sending control frame for MAC address collision, module for receiving the control frame for MAC address collision, and module for controlling MAC address collision. The invention also discloses system composed of cascaded network nodes at second layer for controlling network MAC address collision. The method, device and system better control MAC address collision in Ethernet.

Description

technical field [0001] The invention relates to the problem of MAC address conflict control, in particular to a method, device and system for controlling network MAC address conflict. Background technique [0002] With the development of network technology, Ethernet has been widely used in various large and medium-sized network constructions, but MAC address conflicts often occur during the transmission of Ethernet data frames (hereinafter referred to as Ethernet frames). The so-called MAC address conflict refers to the Ethernet layer 2 network nodes (such as Ethernet switches, wireless access point APs, etc., the following description is based on Ethernet switches as an example, but it does not rule out that wireless access point APs have similar problems. and application) MAC address learning process, the same two or more source MAC addresses appear on two or more different ports of an address forwarding table of an Ethernet Layer 2 network nod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/28H04L12/413H04L45/74
Inventor 汪永明韩永利迮超鲁林丽
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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