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Duplicate mac address detection

A technology of MAC address and MAC address table, applied in the field of detecting duplicate media access control addresses

Active Publication Date: 2019-05-28
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A related situation is that such "duplicate" MAC addresses may be detected due to multiple MAC moves

Method used

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  • Duplicate mac address detection
  • Duplicate mac address detection
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Embodiment Construction

[0028] Reference may be made below to specific elements numbered according to the figures. The following discussion should be considered exemplary in nature and not limiting on the scope of the invention. The scope of the present invention is defined in the claims and should not be construed as limited by the details of the embodiments described below which, as will be appreciated by those skilled in the art, can be achieved by utilizing functionally equivalent functional elements for element Modified by replacement.

[0029] In the prior art described above, it is not possible to distinguish a valid duplicate MAC address situation from a multiple movement situation. It is important to detect MAC address learning situations and differentiate between two different situations in order to avoid network signaling crashes.

[0030] It should be noted that although some embodiments will be described with reference to the IETF drafts referenced herein on E-VPN, it will be apparent ...

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Abstract

Systems and methods are provided for differentiating between duplicate MAC address scenarios and multiple MAC address movement scenarios. A node receives a new MAC address and determines whether it is a known or unknown MAC address by comparing it to a stored table of MAC addresses. If it is a previously known MAC address, the node initiates a duplicate MAC address detection process to determine whether at least one of the duplicate MAC addresses is no longer valid or is the result of a MAC move event.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 836,406, filed June 18, 2013, the contents of which are hereby incorporated by reference. technical field [0003] The present disclosure relates generally to telecommunications, and more particularly to techniques for detecting duplicate Media Access Control (MAC) addresses. Background technique [0004] The telecom industry is working on solutions for network virtualization. A network virtualization solution called Ethernet Virtual Private Network (E-VPN) is being discussed by standards bodies. E- VPNs require extensions to existing Internet Protocol (IP) and Multiprotocol Label Switching (MPLS) protocols. In addition to these extensions, E-VPN uses several building blocks from existing MPLS technology. [0005] figure 1 An outline of a Border Gateway Protocol (BGP) MPLS based E-VPN network 100 is shown. Provider edge (PE) routers 102a a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L12/46H04L12/723H04L45/74H04L45/50
CPCH04L45/50H04L45/74H04L61/5046H04L2101/622
Inventor 强祖
Owner TELEFON AB LM ERICSSON (PUBL)