Method for realizing routing for next-generation network

A next-generation routing technology, applied in the communication field, can solve problems such as difficult maintenance, complex configuration, and heavy workload, and achieve the effects of convenient expansion, simple implementation, and easy intercommunication

Inactive Publication Date: 2004-06-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] 1) Complex configuration and difficult maintenance
For example, during capacity expansion, user change, and number upgrade, all related SoftSwitch configurations need to be modified, which is heavy wor

Method used

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  • Method for realizing routing for next-generation network
  • Method for realizing routing for next-generation network
  • Method for realizing routing for next-generation network

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Experimental program
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Embodiment Construction

[0026] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0027] The present invention completes the routing function by introducing a Telephone Number Mapping (ENUM: Telephone Number Mapping) mechanism in the core network circuit domain where IP bears voice, and transforms the network from a flat structure into a layered structure through this hierarchical routing technology. The ENUM mechanism is a mechanism for mapping E.164 international telephone numbers to the corresponding Uniform Resource Identifier (URI: UniformResource Identifier). ENUM uses the protocol RFC2916 stipulated by the Internet Engineering Task Force (IETF), through which E. The .164 number is translated into a domain name, and then the Internet Domain Name System (DNS: Domain Name System) is queried to obtain the IP address of the network device from the domain name. As shown in Figure 2, the ENUM system is a hierarchical tree structure, and ...

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Abstract

In the invention, phone number mapping (ENUM) mechanism is inducted to complete route function. The hierarchical route technique makes network convert from plate structure to layered structure. Based on called number, calling entity obtains domain name and corresponding IP address from server of phone number mapping (ENUM server) and domain name system (DNS) so as to initiate a message of call setup to the IP address directly. The said entity includes soft switch (SoftSwitch), session initiate protocol user agent (SIP UA) or session initiate protocol proxy server (SIP Proxy) etc. The invention overcomes disadvantages of current route technique of static configuration, provides a method for realizing route selection in NGN effectively so as to make network maintenance and management convenient and easier to expand as well as make interconnection between networks easier.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for realizing routing in the next generation network. Background technique [0002] At present, the next generation network (NGN: Next Generation Network) is showing a growing trend. The number of NGN users and the number of soft switches (SoftSwitch) can be predicted to grow rapidly. Facing such a huge global network, the NGN network routing scheme In the process, it is necessary to solve such problems as how to perform fast and effective routing and positioning, how to reduce network maintenance costs, maintain mutual independence between networks, and how to ensure that a local expansion or change will not cause fluctuations in the entire network. [0003] The existing NGN adopts flat static routing technology, that is, all routing entities adopt a flat structure, and only statically configure routing information. Figure 1 shows a schematic diagram of a flat sta...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L29/02H04Q3/545
Inventor 徐波康志强
Owner HUAWEI TECH CO LTD
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