VPRN成员信息传播方法及比较

The Methods of VPRN Membership Information Dissemination and their Comparison

1 引言 IP VPN可以定义为采用IP设施(包括公共Internet网和专用IP主干网)模拟专用广域网设施,因其既有专用网络的可靠性,又不需要专用网络的投资,而且灵活多变而越来越受到网络厂商和用户的青睐。IP VPN可分为虚拟租用线、虚拟专用路由网(VPRN)和虚拟专用拨号网等类型。其中VPRN最为复杂,应用于多点路由器连接构成的VPN。

VPRN is the most complicated type of VPN. The first step to construct a VPRN is to disseminate the membership information. This paper introduces some methods of dissemination with the emphasis on analyzing and comparing them.