Method and system for implementing case subscription in complex network environment

Abstract

The invention relates to a method for ordering event in complex network environment, and a relative system, wherein the invention comprises that adding an auxiliary server between an event order server center and an event order unit, which communicate messages via reliable connection, the auxiliary server and the event order unit communicate message via non-reliable connection. The invention uses TCP protocol to connect the event order center and the auxiliary server, and uses UDP protocol to connect the auxiliary server and the event order unit connected in the sub network, to confirm the sending reliability and safety with confirmed sending efficiency of ordered message. And the event order center can send all event order messages to each auxiliary server, to reduce the work load on the event order server center.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a technology for implementing event subscription in a complex networked environment. Background technique [0002] In the event subscription mechanism, when the state of an event subscribed by the event subscription service center changes, the event subscription service center notifies each event subscriber of events of various state changes by sending an event subscription message to the event subscriber, so that all Event subscribers get real-time notifications of the status of the events they subscribe to. It can be seen that the event subscription mechanism defines a one-to-many dependency relationship between the event subscription service center and all event subscribers, and this mechanism has the advantage of loose coupling, that is, the number of event subscribers is variable and the deployment is flexible; this mechanism It also has the advantage of less depende...

AI Technical Summary

Problems solved by technology

At this time, for event subscribers not local to the event subscription service center, such as figure 2 Event subscriber 1 or 2 in will not be able to receive event subscription messages

It is absolutely not feasible to open the designated subscription ports of all network devices and forward UDP messages, because this will undoubtedly weaken the functions of firewalls or routers;

[0011] 2. Due to the use of non-connection-oriented UDP protocol, such as figure 2 In the network environment of the complex network shown, event subscription messages may be lost during long-distance transmission;

[0012] 3. In order to reduce the workload, the event subscription service center usually sends all event subscription messages to all event subscribers, but event subscribers may not want the event subscription messages of this subnet to be sent to other subnets, such as figure 2 In , the event subscribers 1 or 2 of the two non-subscription centers do not want the event subscription messages subscribed by this subnet to be sent to other subnets. Therefore, the occurrence of event subscription messages has security issues

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