Data message sending method and device

Abstract

The invention provides a data message sending method and device, and the method comprises the steps that a first network node generates a detection message after the first network node detects that adata message cannot be sent according to a routing table, detects a next-hop network node according to the detection message, and sequentially sends the detection message and the data message to the next-hop network node, thereby avoiding the first network node, and improving the user experience. That is to say, the network node which cannot send the data message according to the routing table isdetected to lose the data message, and the transmission reliability of the data message is improved. Similarly, after the second network node, namely the intermediate network node receives the detection message, the next-hop network node is detected immediately according to the detection message, and the detection message and the data message are sent to the next-hop network node in sequence, so that the second network node is prevented from losing the data message; and complete routing protection under the condition of any multi-link and multi-network node fault is supported, and the transmission reliability of the data message is improved.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for sending data packets. Background technique [0002] When the link between the network nodes in the Internet protocol (internet protocol, IP) network fails, the data message sent to the faulty link is lost; at the same time, the network node at the fault point can detect the link fault, and then pass The routing protocol broadcasts the failure to the entire network. After each network node receives the failure broadcast, it takes a period of time to complete the recalculation and update of the routing table. This period is called the routing convergence time. During the routing convergence time, each network node executes The recalculation and update of the routing table are called route convergence. After route convergence is completed, data packets are forwarded according to the new routing table. [0003] Usual...

AI Technical Summary

Problems solved by technology

However, in reality, multi-link and multi-network node failures often occur in the entire network. At this time, although the network node that detects the failure can switch the data packet to the backup path, when the backup path also fails When , the routing protection fails and the reliability of data packet transmission decreases.

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