Analysing and Comparing of VPN Technology
Pingbo Zhang · Informatization Research · 2011
VPN is vitual private network based on public network.At first,this article introduces the definition and development of VPN and then describes 3 kinds of VPN technology(VPN based on telephone network,VPN based on traditional TCP/IP network and VPN based on MPLS network) in the way of requirements,security,reliability,expansibility and QoS.At last,the author compares application situation,strongpoint and disadvantage of the 3 VPN technology.