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A kind of rpr failure protection method and its equipment

A technology of fault protection and equipment, applied in the field of communication, can solve the problem of long switching time and achieve the effect of fast fault protection

Active Publication Date: 2015-09-23
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0036] The invention provides an RPR failure protection method and its equipment, which are used to solve the problem of long switching time in the existing RPR failure protection mechanism without increasing the RPR link overhead

Method used

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  • A kind of rpr failure protection method and its equipment
  • A kind of rpr failure protection method and its equipment
  • A kind of rpr failure protection method and its equipment

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Experimental program
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Embodiment Construction

[0055] Aiming at the problems existing in the existing RPR fault protection mechanism, the embodiment of the present invention provides a method for locating fault sites based on the RPR topology discovery mechanism for the scenario where OSPF, RIP, IS-IS or BGP and other routing protocols are applied on the third layer of the RPR ring network. , use the ARP (Address Resolution Protocol, Address Resolution Protocol) table to find the IP address of the faulty site, and update the three-layer routing table according to the found IP address of the faulty site, so as to realize the fast switching of the three-layer routing, and then realize the whole ring The fast fault protection of the network, the fault protection time is basically determined by the fault protection time that can be achieved by the RPR topology discovery mechanism. In the case that the RPR topology discovery mechanism can guarantee the fault recovery time of 50 milliseconds, the update time of the above three-lay...

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Abstract

The invention discloses an RPR (Resilient Packet Ring) fault protection method and equipment which are applied to an RPR network in which three layers of routing protocols are operated. The method comprises: when station equipment on the RPR network perceives topological change in the RPR network according to an RPR topology discovery mechanism, the station equipment locates fault station equipment according to the topological change; according to a media access control (MAC) address of the located fault station equipment, the station equipment inquires an IP (Internet Protocol) address of the fault station equipment through an address resolution protocol (ARP) table; and according to the inquired IP address, the station equipment deletes the neighborship of three layers of the routing protocols among the corresponding station equipment and also deletes next-hop routes directing to the IP address in routing tables of three layers of the routing protocols.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to an RPR fault protection method and equipment thereof. Background technique [0002] RPR (Resilient Packet Ring) is a new MAC (Media Access Control) protocol that can run on SONET (Synchronous Optical Network) / SDH (Synchronous Digital Hierarchy) ), DWDM (Dense Wavelength Division Multiplexing) and Ethernet, providing flexible and efficient networking solutions for broadband IP MAN operators. [0003] RPR adopts a reverse double-ring structure, and data is forwarded between stations along the ring network, such as figure 1 shown. In the RPR double ring, the clockwise sending direction of the data frame is called ring 0, also called the Outer Ring (outer ring), and the counterclockwise sending direction of the data frame is called the 1 ring, also called the inner ring (inner ring). Other topology-related definitions are as follows: [0004] Station: The device on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/437H04L12/24H04L45/28
Inventor 熊定山
Owner XINHUASAN INFORMATION TECH CO LTD