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Reliability guarantee method for data packet transmission in SNMP

A simple network management and data packet technology, which is applied in the field of reliability assurance of TRAP packet transmission, can solve the problems of missing data packets, inability to guarantee the integrity of data transmission, and inability to guarantee the consistency of TRAP data, etc., so as to ensure consistency and transmission The effect of reliability assurance

Inactive Publication Date: 2008-02-20
HUAWEI TECH CO LTD
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Problems solved by technology

[0002] SNMP TRAP data packets are transmitted based on the UDP protocol, and since the UDP protocol itself has no inspection and retransmission mechanism, data packets will often be lost during the transmission process, that is, the integrity of data transmission cannot be guaranteed, and it cannot Ensure the consistency of TRAP data between the network management system and the device

Method used

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  • Reliability guarantee method for data packet transmission in SNMP
  • Reliability guarantee method for data packet transmission in SNMP

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Embodiment Construction

[0046] The number involved in the present invention is the serial number, which is the unique number made by the sending source device (Agent) for each Trap data packet sent sequentially. The sending source device (Agent) starts numbering from 1 after each restart of the network management system, and the serial number is represented by an unsigned long integer, which is serially numbered with a step size of 1, such as 1, 2, 3, 4... .. After receiving the SNMP TRAP data packets, the receiving end equipment of the network management system judges whether all the TRAP data packets are received based on the continuity of the serial number, and requires the sending source to resend the parts with discontinuous numbers.

[0047] Referring to Figure 1, when sending each SNMP TRAP packet, the sending source (Agent) adds a serial number in the variable binding field (VB: Variable Binding), as shown in the figure, the serial number is placed in the first VB field, The variable binding...

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Abstract

The utility model relates to a reliability assurance method and a device for transferring TRAP packets in simple network management protocol (SNMP), which can be used for realizing the checking mechanism of SNMP TRAP which can discover the loss of TRAP timely and request resending during transferring SNMP TRAP, comprising a sending source party and a receiving party. The sending source party sends TRAP packets to the receiving party. The TRAP packets contains the current serial number information obtained by numbering continuously according to sending sequence for each TRAP packet sending source party. The receiving party is used for dealing with the TRAP packets to get the current serial number information after receiving the TRAP packets. If the current serial number information is larger than the value by adding the former current serial number information of the TRAP packets and 1, the TRAP packet is defined to be lost during transferring. The lost TRAP packet is the packet corresponding with the missing serial number information between the current serial number information and the former serial number information.

Description

technical field [0001] The present invention relates to a kind of network management technique, relate to a kind of in Simple Network Management Protocol (SNMP) more precisely, relate to a TRAP package (one of SNMP five commands) based on User Datagram Protocol (UDP), initiated by equipment, It is mainly used for the reliability assurance method of active reporting of alarm information). Background technique [0002] SNMP TRAP data packets are transmitted based on the UDP protocol, and since the UDP protocol itself has no check and retransmission mechanism, data packets will often be lost during the transmission process, that is, the integrity of data transmission cannot be guaranteed, and it cannot Ensure the consistency of TRAP data between the NMS and the device. Contents of the invention [0003] The purpose of the present invention is to design a method for ensuring the reliability of data packet transmission in a simple network management protocol, which is used to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/24H04L1/00
Inventor 贺培成杜华坤梅新华吴蒙
Owner HUAWEI TECH CO LTD
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