Apparatus and method for confirming re-transmission policy in arrangement

Abstract

The invention discloses a device and a method for determining a retransmission policy in negotiation, the device includes: an input device, a retransmission counting device, a timing determination device, a packet analysis device and an output device; the input device is used for receiving The message received by the local end; the retransmission counting device is used to store the number of times a certain message is sent; the timing determination device is used to decide to execute a retransmission task after a specified time interval; the message The analysis device is used to analyze whether the message received by the local end meets the condition of retransmission; the output device is used to output the judgment result of whether retransmission is required; The above-mentioned retransmission counting means work together to determine the result of the judgment. The new principle of retransmission in negotiation of the present invention increases the scenarios where retransmission can be performed without affecting security, thereby increasing the probability of successful negotiation and improving the robustness of the system.

Description

technical field [0001] The present invention relates to the field of network communication, specifically, the present invention is a method and equipment for determining a retransmission strategy in negotiation. Background technique [0002] With the widespread application of the IP protocol, the security of the IP protocol network has gradually become a concern of people. The IP protocol itself is an open protocol and does not contain security features. Plaintext IP packets may be tampered with, eavesdropped, or forged during transmission, and their security is seriously threatened. [0003] IPsec (IP Security) is a security mechanism on the IP layer, which provides protections such as confidentiality, integrity, and anti-replay for IP data packets. Security Association SA (Security Association) is a set of policies used by IPsec to protect data packets, including confidentiality and integrity algorithms, keys, etc. used. [0004] IPsec SAs can be manually configured or ...

AI Technical Summary

Problems solved by technology

If the other party cannot receive this message for some reason, the party receiving the last message will not be able to complete the negotiation process, and the negotiation will fail after reaching the maximum number of retransmissions

[0010] According to the above analysis, there are some problems in the existing retransmission mechanism, so that the negotiation parties cannot negotiate successfully in some situations where they could continue to negotiate.

Images