New construction model and routing method for mobile IP

Abstract

The invention relates to a novel structural network and an address binding method routing method, which are proposed in the way of comparing with the viewpoints in standard RFC4140. The network structure is that an entire mobility anchor point (MAP) domain is composed of switches; a scheme for bounding a mobile host home agent (MNHA) with a regional care of address 1 (RCOA1), an RCOA2, as well as bounding the MNHA with an RCOA3, and bounding the RCOA3 with an RCOA4 is adopted after lost local care of address (LOOA), and the binding mapping is implemented via three levels of switches of the MAP; the MNHA and the RCOA in each macrohandover of a mobile node (MN) are bound in the home agent (HA) of the MN, and during the macrohandover, only RCOA binding obtained during the macrohandover and newly obtained RCOA binding are required on the MAP after the macrohandover instead of binding update in the HA; and the routing solution is that a network prefix digit difference is incidentally sent when the MN conducts binding update in the HA, and the network prefix digit of the MAP is obtained by subtracting the digit difference from the network digit of the MN. The structural network introduces the three-level network structure to the mobile IP network, so as to remarkably improve the bandwidth in the MAP domain and save a large number of IP addresses.

Description

technical field [0001] The invention belongs to a routing method of a mobile network, in particular to a mobile IP new structure network and an address binding method. Background technique [0002] The traditional IP technology is aimed at the mutual communication between fixed nodes. The hosts use fixed IP addresses and TCP port numbers to communicate with each other, and their IP addresses and TCP port numbers remain unchanged during the communication. The basic problem of mobile IP is that the IP host may need to move on the network during communication, and its IP address may change frequently. Because Internet addressing relies on network prefix routing, when a node switches from one link to another, the network prefix portion of its IP address is no longer the same as the network prefix of the new link. In this way, the network prefix routing technology in the fixed network has no way to send the data packet to the new location of the node, and the data communication ...

AI Technical Summary

Problems solved by technology

[0006] ② Access discovery delay: caused by the slow movement detection process of the mobile node, mainly because the route broadcast frequency is too low

[0011] Mobile IP will be the key technology of 3G, 4G, WIMAX and other next-generation networks, but the current research on mobile IP lags behind, mainly because the standard mobile IP performance of IETF cannot meet the actual needs and practical applications

However, the improvement scheme proposed so far only stays in low-performance applications, without combining actual engineering experience to design mobile IP networks, which has certain theoretical research value, but cannot meet the needs of practical applications.

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