| In the recent years, private network become the extreme important part of the entire network. The VPN is a new service, which can establish virtual networks for enterprises and clients by utilizing the common network. It not only saves the cost of establishment of network, but also makes it easy to be maintained. So, the technology becomes the focus. The MPLS(Multiprotocol Label Switching)technology is the latest evolution in the integrate router and switching solution. MPLS VPN is the combination technology of MPLS and VPN. The technology of MPLS VPN has advantage of the ovelay model vpn(isolation and security) and the peer-to-peer model vpn(easy to deploy and maitain).With the MPLS VPN deployment in telecom, it needs a vpn network manager software to plan ,depoly and monitor the vpn service. VPN Manager project starts for the requirement. According to ITU-T(International Telecommunications Union-Telecommunications Standardization Section)TMN(Telecom Management Network)standard, the vpn service is at the service management layer. As widely known , there are a few operator systems on the telecom environment. So ,we must find a develop method in order that we don't need to rewrite the software for another operator system. We think of the component software develop method and more people are more familiar with C++, we choose the Mozilla platform to build the system. Mozilla is not just a web browser. Mozilla is also a framework for building cross-platform applications using standards such as CSS(Cascading Style Sheets),XML languages such as XUL(XML-based User-Interface Language).Mozilla development framework make use of programming languages such as JavaScript ,C++ and IDL(Interface Definition Language), and it provides component model,XPCOM technology. Above all, Mozilla is a good toolkit to develop the cross-platform application. The paper introduces the theory of the MPLS, MPLS' support to VPN , and knowledge about MPLS VPN and studys the knowledge of the Mozilla. |
