Efficient and fast convergence neighbor discovery scheme

Abstract

The invention provides an efficient and fast convergence neighbor discovery scheme, which is mainly applied to constructing neighbor discovery nodes in an autonomous control plane and adopts two mechanisms of 'constructing an adjacency list using simplified neighbor discovery messages' and 'efficiently and fast accessing a node into a security autonomous domain'. The first mechanism mainly solvesthe problems that neighbor messages are redundant and too long in the neighbor discovery process. The second mechanism mainly solves the problem that when a new node is added into a security autonomous domain, neighbor table convergence is too slow. By using the two new mechanisms, the neighbor discovery method provided by the invention can reduce the control overhead and effectively improve the convergence speed of the adjacency list, thereby reducing the control overhead and improving the neighbor discovery efficiency in the neighbor discovery process.

Description

technical field [0001] The present invention belongs to the technical field of autonomous networks (Autonomic Networks), and in particular relates to the need to realize the signaling requirements of network management in autonomous networks, especially the need for autonomous nodes to implement secure encrypted transmission of messages through network layer security protocols (IP Security, IPsec) Features. Background technique [0002] Autonomous system (see literature [1]: Vinh P C. Toward Formalized Autonomic Networking [J]. Mobile Networks & Applications, 2014, 19(5): 1-10) was first proposed in 2001. The basic goal is self-management, including self-configuration, self-optimization, self-healing and self-protection (see literature [2]: BehringerM, Pritikin M, Bjarnason S, et al.Autonomic Networking: Definitions and DesignGoals[J].Information on Rfc, 2015). Autonomous systems implement self-management behavior through autonomous functions, while IP networks were origin...

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Problems solved by technology

[0019] In order to solve the above-mentioned three problems that the neighbor discovery message is not concise enough, the mapping relationship between the link-local address LLA and the MAC address is ignored, and the convergence speed of the adjacency table is too slow, the present invention proposes an efficient and fast-converging neighbor discovery scheme; The method adopts two new mechanisms of "construction of adjacency table using simplified neighbor discovery message" and "node efficient and fast access to secure autonomous domain". By deleting redundant fields in neighbor discovery message, modifying the content of neighbor discovery message field and optimizing the Nodes join the security autonomous domain process, eliminate message redundancy in the neighbor discovery process, reduce the length of control messages, and speed up the convergence speed of neighbor discovery, making the neighbor discovery process efficient and fast.

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