It has been discussed in detail that the system structure of IP MAN, the function of every layer, technology of making network, artifice of route, IP address allocate, certificating and charging.

• 论文对IP城域网的系统结构、功能分层、组网技术、路由策略、IP地址的分配、用户的认证、计费、管理等作了较详细的讨论。