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Novel method and apparatus for Ether ring network address updating

An Ethernet and address technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as network performance hazards, aggravate address learning tasks, increase the scale of broadcast storms on the Ethernet ring network, and reduce damage. Effect of reducing broadcast size

Active Publication Date: 2009-05-06
ZTE CORP
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AI Technical Summary

Problems solved by technology

When the network topology changes, such as a link switchover caused by a link failure, each node on the ring will refresh the address forwarding table. Refreshing all the address forwarding tables of each node not only increases the address learning task of each node, but also Greatly increased the scale of broadcast storms on the Ethernet ring network, which brought great harm to network performance

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  • Novel method and apparatus for Ether ring network address updating
  • Novel method and apparatus for Ether ring network address updating
  • Novel method and apparatus for Ether ring network address updating

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Embodiment Construction

[0039] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0040] In the address refresh method of the Ethernet ring network of the present invention, each ring node of the Ethernet ring network maintains a two-level forwarding table, including a first-level forwarding table and a second-level forwarding table. When refreshing the address, the nodes on the ring do not refresh the first-level forwarding table, but only the second-level forwarding table, thus greatly reducing the harm caused by the broadcast storm on the Ethernet ring network.

[0041]In the present invention, when the data message is forwarded on the ring network, a ring media access control (MAC, Media Access Control) header is encapsulated for the data message, and when the data message enters the ring network from the outside of the ring network and is forwarded, it is called an upper Ring, when data packe...

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Abstract

The invention discloses a address refreshing method for Ethernet ring comprising: configuring two-stage forwarding table for ring node of Ethernet ring; when topology changes of Ethernet ring, judging if the ring node is connected with topology changing point; if ring node is connected with topology changing point, the ring node deleting all address forwarding item of self two-stage forwarding table and creating message carrying address refreshing information to self node of adjacent ring; if ring node is not connected with topology changing point, the ring node receiving message carrying address refreshing information and from its adjacent node, then deleting all address forwarding items of two-stage forwarding table in self two-stage forwarding table; and forwarding the received message to self node positioned at adjacent ring. The invention also discloses an address refreshing device. The inventive method and device can largely relieve harm of broadcasting storm of Ethernet ring.

Description

technical field [0001] The invention relates to the field of Ethernet ring protection, in particular to an address refreshing method and device for an Ethernet ring. Background technique [0002] In the actual application of Ethernet, various Ethernet ring protection technologies are widely used to realize redundant data backup between the main path and the backup path. When both the main path and the backup path are in good condition, the protection data forwarding function of the backup path is blocked, so that the protection data between networks is transmitted on the main path; when the primary path fails, the protection data forwarding function of the backup path is enabled, and the network The protection data between switches is switched to the backup path for transmission, which can prevent the protection data from being repeatedly received and form a broadcast storm under normal network conditions. Enabling the backup path to transmit protection data when the main p...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L12/56H04L12/437H04L45/02H04L45/74
Inventor 王斌吴少勇
Owner ZTE CORP
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