A method and device for switching the state of an RPR intersecting ring logic port

Abstract

The embodiment of the present invention provides a method and device for switching the state of an RPR intersecting ring logical port, which is applied to the device where the initial state of the intersecting ring logical port is in the blocked state in the RPR intersecting ring network. The method includes: monitoring the initial state on the local device The state of the intersecting ring logic port whose state is forwarding state; receive the monitoring protocol message sent by the peer device according to the preset period; identify and determine the initial state of the peer device as forwarding according to the value of the specified bit in the monitoring protocol message The state of the intersecting ring logical interface; if the state of at least one intersecting ring logical interface among all the intersecting ring logical ports whose initial state is forwarding state on the local device and the peer device is in the fault state, the initial state is the intersecting ring logical port in the blocked state. The status of the ring logic port is switched from the blocking state to the forwarding state. Through this solution, the transmission interruption time of the data frame can be shortened when a device failure occurs.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a method and device for switching the state of an RPR intersecting ring logic port. Background technique [0002] RPR (Resilient Packet Ring) technology is a new MAC (Media Access Control) protocol that optimizes message transmission on the ring structure, and can run on SONET (Synchronous Optical Network) / SDH (Synchronous Digital Hierarchy, synchronous digital series), DWDM (Dense Wavelength Division Multiplexing, Dense Wavelength Division Multiplexing), Ethernet and other physical layers, can effectively transmit voice, image and other data types of messages, for Broadband IP MAN operators provide flexible and efficient networking solutions. [0003] A ring network composed of RPR technology is called an RPR ring. The structure of an RPR ring is as follows: figure 1 shown. With the development of Internet technology, the network environment becomes more and more complex...

AI Technical Summary

Problems solved by technology

[0004] If any of the intersecting devices experiences a device failure, for example, image 3 In the shown device 3, a fault occurs on one of the intersecting ring logic ports. Considering the data frame transmission cycle and transmission delay, device 4 will not receive the data frame sent by device 3 for a long time before it will intersect The state of ring logical port RPR6 / 0 / 1 is set to forwarding state to ensure the normal transmission of data frames in RPR intersecting ring networking. In this way, the state switching of intersecting ring logical ports cannot quickly track device failures, resulting in device failures , the transmission interruption time of the data frame is too long

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