The key network technology,such as protocol conversion,VPN(Virtual Private Network),IP tunneling,PCM DEMUX used in the company WAN infrastructure are discussed in the paper.

• 论文分析了江西铜业公司企业网络通信的现状和需求,阐述了企业广域网系统设计方案,对协议转换、虚拟专用网、IP隧道技术、PCM复接器等组网关键技术进行了设计分析。