trusty and virtuality of heterogenous networks lead to a lot of research and new design in network architecture.The problems and challenges of network architecture in control
security and data plane were analyzed
and some proposed solutions such as those for Internet
telecommunication and military networks were summerized.Based on the network evolution history
it is pointed that the future development direction of network architecture is to extend in the planes of control
management
security and service.The flexible application(e.g.adaptation or nesting) and smart implementation(e.g.object/service/role oriented) of layered network architecture will enrich the paradigms of networks.