摘要
针对目前一些用户希望设备当接入网络以后能够实现自动配置及服务发现,提出了一种零配置协议;详细阐述了协议中设备IP自动分配,域名自动获取的原理;给出了多台设备同时获取同一域名所造成冲突的解决方案;介绍了在传统的DNS构架的基础上添加PTR(pointer)记录的服务发现新机制,既协议中的DNS-SD机制;它能把提供给用户所需求服务的所有设备都列举出来,供用户选择一个性能最好的使用;从而提高了服务发现的有效性;最后描述了目前零配置协议的实现以及应用情况,并对其进行了总结。
Because presently some users hope that the devices can be automatically configured and discovered for services, after the devices are connected to network, the Zeroconf Protocol is posed; its automatic assignment for devices IP and obtaining Domain Name respectively are introduced in detail; the resolution to the conflict which several devices fighting for the same Domain name in the same time cause is given; and the new mechanism of service discovery that the PTR records adds to DNS is introduced, namely its DNS - SD, which can lists all devices which can provide the same service to let users choose the best one to enhance the effect of service discovery; finally the realization and application of Zeroeonf Protoeol are described, and the protocol is summarized.
出处
《计算机测量与控制》
CSCD
2008年第8期1190-1191,1205,共3页
Computer Measurement &Control
关键词
自动配置
IP
域名
服务发现
automatic configuration
IP
domain name
service discovery
