Loop Ethernet switching method

A technology of Ethernet and ring switching, applied in the field of Ethernet ring switching, which can solve problems such as network performance degradation and hardware operation failure

Active Publication Date: 2007-11-14
ZTE CORP
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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a switching method of the Ethernet ring network, which can avoid the multiple switching of EAPS in a short period of time caused by the rapid link oscillation, as well as the unsuccessful operation of EAPS on the hardware and the degradation of network performance. , and can improve the anti-fault capability of the Ethernet ring network in the case of complex link oscillation

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Embodiment Construction

[0016] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] In the present invention, the link state description is divided into three types: intact state (Link-Up-State), fault state (Link-Down-State), recovery state (Link-Preup-State), wherein Link-Preup- State is only valid for the master node. When the link is intact, the link state recorded by the master node and the transit node in the EAPS domain is Link-Up-State; when the link fails, the link state recorded by the master node and the transit node is Link-Down-State ; When the link router fails and recovers to be intact, the link is still not stable, and the master node will delay the link switching process. The link state recorded by the master node is Link-Preup-State, and the transmission node has not received the The link state notification frame is intact, so the recorded link state is still Link-Down-State.

[0018] Fig....

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Abstract

The method includes following steps: step S202, configuring delayed processing time in use for link recovery on main node of Ethernet ring; the delayed processing time is valid for main node only; step S2024, when failure occurs on link, main node and transmission node registers state of link as state of failure, and corresponding process carries out; step S206, when link is recovered, main node processes link switching in delayed time based on delayed processing time. The method prevents multiple times of switching in EAPS short time cause by quick oscillation of link, and unsuccessful operation of EAPS on hardware, and descendent network performance. Moreover, the invention raises capability of resisting fault of Ethernet ring under complex link oscillation.

Description

technical field [0001] The invention relates to the communication field, in particular to an Ethernet ring network switching method. Background technique [0002] With the development of IP network in the direction of carrying multiple services, NGN (Next generation network, next-generation communication network), IPTV (Internet protocol television, Internet TV) and other services have higher and higher requirements for network reliability and real-time performance. The traditional ring network protection STP (Spanning-tree protocol, Spanning Tree Protocol) technology of the inbound layer 2 network cannot meet the requirements of fast convergence and link switching. RFC3619 defines an Ethernet Automatic Protection Switching (EAPS, Ethernet Automatic ProtectionSwitching) method, which solves the problem of slow convergence of network faults when Ethernet devices are in a ring network topology. Using this method, the convergence time can be made within 50ms. The Ethernet auto...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/437H04L12/46H04L12/56H04L12/24H04L45/74
Inventor 吴少勇毕连宏曲延锋
Owner ZTE CORP
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