Harmless information deletion method and system

Abstract

The invention discloses a non-damage information deletion method and a system, wherein the non-damage information deletion method includes the steps: S202, a sender delivers control packets to a receiver, wherein the control packets contain the member status information; S204, the receiver processes according to the control packets, fixes the member status information in the reserved field of the control packets and adds the member status additional information, and then returns the control packets back to the sender; and S206, the sender acquires the member status information and the member status additional information from the control packets and implements the corresponding processes. The invention can realize the termination deletion with no service damage and no deadlock, and is compatible with the current standard, thereby resolving the long-term problem of LCAS protocol in the termination deletion.

Description

technical field [0001] The present invention relates to the communication field, and more particularly relates to a method and system for deleting information without damage. Background technique [0002] Synchronous Digital Hierarchy (SDH) equipment, as the mainstream equipment of the current transmission network, has been widely used in the field of communication. Its standard virtual container (Virtual Container, VC for short) VC-12, VC-3, VC- 4 can be used to carry fixed bandwidth TDM services such as E1, E3 / T3, and E4 respectively, so the demand for VC cascading is not strong, but with the rapid development of data services, SDH equipment carrying data services has become a problem that must be solved. [0003] One of the characteristics of data services is the uncertainty of bandwidth. Since it is a packet service, the actual service bandwidth is not necessarily related to the interface used, and the types of SDH equipment VCs are very limited. Those who want to use a ...

AI Technical Summary

Problems solved by technology

[0040] One is to use the network management software to ensure the consistency of the number of VCGs at the source end and the sink end. When the VCG members at the sink end are forcibly deleted, the network management notifies the source end to perform the deletion operation at the same time to ensure that the continuity of the SQ and the number of members are the same. However, this method The dependence on the network management is very strong, and the whole process cannot be successfully completed when the source end is disconnected;

[0041] One is to judge by software. When the sink deletes, the VCG size is not adjusted forcibly. The sink still receives the original number of VCGs. It is not until the source deletes that the sink actually deletes members and completes the VCG size adjustment. This method software needs to save a lot of state. When the business is mixed with alarms or user operations exceed expectations, state deadlock may occur, and some members cannot be deleted.

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