Keep-alive message sending method and device, electronic equipment and readable storage medium

Abstract

The embodiment of the invention provides a keep-alive message sending method and device, electronic equipment and a readable storage medium, and belongs to the technical field of communication. The method comprises the following steps: after any PPP interface negotiates successfully, calculating first sending time for sending a first keep-alive message of the PPP interface according to a keep-alive period of the PPP interface; judging whether the number of the PPP interfaces needing to send keep-alive messages in the first sending time in all the current successfully negotiated PPP interfacesexceeds a preset value or not; if the first keep-alive message exceeds the preset value, the sending time of the first keep-alive message is adjusted to second sending time, and the second sending time is later than the first sending time; and sending the first keep-alive message at the second sending time. Therefore, the number of the PPP interfaces for sending the first keep-alive message at thesame time is not too large, and the problem that the load is too large due to the fact that a network server LNS processes sending of a large number of keep-alive messages at the same time is solved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular, to a method and device for sending keep-alive messages, electronic equipment, and a readable storage medium. Background technique [0002] With the development of data communication technology, people have proposed a virtual private network (Virtual Private Network, referred to as VPN), the purpose of which is to ensure the security of communication, use a public network, and realize private communication through a layer-3 or layer-2 tunnel. [0003] For constructing VPN, network tunnel technology is a key technology. Network tunnel technology refers to the use of one network protocol to transmit another network protocol, that is, to re-encapsulate existing transparent network information, so as to ensure the security of network information transmission. It mainly uses network tunneling protocols to realize this function, specifically including Layer 2 Tunneli...

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Problems solved by technology

[0007] However, if the LNS handles a large number of different PPP interfaces to send and receive keep-alive packets that exceed the processing performance of the LNS, the LNS may not have more processing capacity to handle the negotiation of new LACs, so it may cause A large number of negotiation packets are sent repeatedly, resulting in repeated vibrations in the L2TP session negotiation, which aggravates the heavy load of the network itself, thus forming an avalanche effect, but no corresponding solution is proposed in the prior art

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