The future VPN-MPLS-VPN
Qi Chen · Dianli zidonghua shebei · 2002
The Multiprotocol Label Switching(MPLS) is a new network technology that is quickly growing up,while Virtual Private Network,the greatest service field,is facing the challenge raised by the explosive increase of traffic in the network.In this instance, the combination of MPLS and VPN(Virtual Private Network) is very valuable for practical purpose.The use of MPLS technology gives customers the service with high speed, high quality and high security,and it makes the service supply relatively simpler for service provider.At the same time, the flexibility and expansibility of the network structure are also greatly improved.Based on an introduction to VPN,the description of MPLS?VPN is emphasized, including its network structure,forwarding mechanism and performance of security assurance,QoS and flow engineering.The benefits and existing problems of MPLS?VPN are also pointed out.