基于H.323协议的IP电话网守地址解析的研究

随着IP电话的广泛应用,其服务质量的提高也日益重要.由于网守地址映射表的查询效率低,地址解析时间长,在解析能力和扩展性能上存在一定的局限性,影响了单位时间内的呼叫接通率.本文通过分析基于H.323协议中网守地址解析存在的问题,提出了采用基于十叉Trie树的存储结构及其查询方法,有效减少了整个IP电话网络体系的地址解析时间,使IP电话系统的通信服务质量得到很大改善.

Research on Gatekeeper of Address Translation Based on H.323 Protocol

With the increasing application of IP telephony,the improvement of it's quality of service has been becoming increasingly important.Low efficiently of gatekeeper address map table,the long time of address translation,limitation of resolution ability and expansibility,all these influence the successful call rate in unit time.The paper studies and analyzes the problems existing in the address translation of gatekeeper based on H.323 protocol.Based on the problem,the paper proposes the corresponding measure of solution,which based on the storage structure and search method of decimal Trie tree.It can effectively reduce time of addressing to enhance greatly the quality of communicative service of IP telephony.