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Iterative query method and system of server

A server, DNS server technology, applied in transmission systems, instruments, special data processing applications, etc., can solve the problem of heavy load on the first-level ENUM/DNS server, and achieve the effect of simplifying the query process, clear division of labor, and reducing burden

Inactive Publication Date: 2010-12-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The query method of the existing server has the following problems: In the entire IMS system, there is often only one set of primary ENUM / DNS servers, which can easily lead to excessive load on the primary ENUM / DNS servers

Method used

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  • Iterative query method and system of server
  • Iterative query method and system of server
  • Iterative query method and system of server

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Experimental program
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Embodiment Construction

[0041] In order to solve the problems existing in the existing query methods, the present invention provides a method for realizing the iterative query method of the ENUM / DNS server in the IMS network. Caching of results. Through this caching technology, it can not only meet the requirements for iterative query in the "China Mobile ENUM-DNS Interface and Equipment Specification", but also effectively reduce the burden on the first-level ENUM / DNS server and improve the query response speed.

[0042] Based on the above ideas, the present invention provides a server iterative query method, which specifically adopts the following technical solutions:

[0043] After the secondary ENUM / DNS server receives the client's iterative query request, it first performs local data query. If the local data query fails, it queries the address information of the target secondary ENUM / DNS server in the local cache. The address information of the queried target secondary ENUM / DNS server directly ...

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Abstract

The invention discloses an iterative query method and an iterative query system of a server. The method comprises the steps of: when a secondary telephone number mapping working group / domain name system (ENUM / DNS) server receives an iterative query request from a client, first inquiring the local data; if the query of the local data is failed, inquiring address information of a target secondary ENUM / DNS server in a local cache; if the inquiry is successful, directly initiating the inquiry to the target secondary ENUM / DNS server according to the inquired address information of the target secondary ENUM / DNS server; and if the inquiry is unsuccessful, initiating the inquiry to a primary ENUM / DNS server and caching related domain name and address information returned by the primary ENUM / DNS server locally. By applying the technical scheme of the invention, the load of the ENUM / DNS server is reduced, and the reliability of the system is improved.

Description

technical field [0001] The present invention relates to ENUM (Telephone Number Mapping working group, telephone number mapping working group) / DNS (Domain Name System, Domain Name System) server field of IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) network, more specifically, relate to a Server iterative query method and system. Background technique [0002] In the China Mobile Communications Enterprise Standard, the "China Mobile ENUM-DNS Interface and Equipment Specification" points out that there are two query methods between the first-level ENUM / DNS server and the second-level ENUM / DNS server: recursive query (required) and iteration mode (optional). [0003] After receiving an iterative query, the ENUM / DNS server needs to give the final query result or failure result. It is mentioned in "China Mobile ENUM-DNS Interface and Equipment Specifications" that if the query cannot be found on this server, the domain name and IP address of the authoritative server nee...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L29/06G06F17/30
CPCH04L61/157H04L29/1216H04L29/12066H04L61/1511H04L61/4511H04L61/4557
Inventor 盛明超许可喜吴丽梅
Owner ZTE CORP
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