Method for implementing route backtracking in IP (Internet Protocol) telecommunication network

Abstract

The invention discloses a method for implementing route backtracking in an IP (Internet Protocol) telecommunication network, which comprises steps as follows: an initiating node transmits a route backtracking request packet to an object node; the route backtracking request packet is transmitted to the object node according to the preset route, along which each node sequentially attaches the local address information and additional information into the load of the route backtracking request packet and forwards to the next node; after the route backtracking request packet reaches to the object node, the object node attaches the local address information and additional information into the load of the route backtracking request packet, repacks the load and transmits a route backtracking response packet to the initiating node; and each node along the route sequentially attaches the local address information and additional information into the load of the route backtracking response packet until returning to the initiating node. The invention greatly reduces the network load, and the obtained result is free from the influence of the changes of the route in the backtracking process, thereby effectively enhancing the detection capability of the route backtracking.

Description

technical field [0001] The invention relates to a method for realizing routing backtracking in an IP telecommunication network, belonging to the technical field of telecommunication. Background technique [0002] At present, the all-IP trend of telecom services has been established. The all-IP service network requires that the bearer network is also an IP network. However, IP technology has some inherent disadvantages: disordered network topology, uncertain network behavior, uncertain network transmission quality, security issues, and poor network manageability. The bearer network that provides telecom services must not only have good connectivity, but also provide users with services that are safe and have guaranteed quality of service; have good operation and maintenance capabilities, and be able to accurately grasp, control, and manage network and service resources; provide sustainable business model, etc. Therefore, the self-deficiency of IP technology has seriously h...

AI Technical Summary

Problems solved by technology

[0011] In the above routing backtracking process, the total number of routing backtracking request packets sent by the initiating node and the total number of routing backtracking response packets sent by each node are proportional to the number of path nodes, so the network load will be increased

Moreover, the above routing backtracking does not require the initiating node to obtain the node and path information traversed by the routing backtracking response packet itself, because in the case of each node replying individually, to obtain the response path, initiating a request will get the square of the number of nodes traversed Proportional to the number of routing backtracking response packets, causing the network load to be too heavy

More importantly, the routing backtracking request packets sent by the initiating node in turn may take different paths due to the dynamic change of the intermediate node routing, but the initiating node cannot obtain this information, so the path that causes the routing backtracking feedback is not the final routing path