NETWORK SYSTEM, METHOD AND PROTOCOL FOR HIERARCHICAL SERVICE AND CONTENT DISTRIBUTION VIA DIRECTORY ENABLED NETWORK

摘要

PROBLEM TO BE SOLVED: To provide a network system and method capable of improving the performance of a contents distribution network. SOLUTION: The network system is constructed into 4 layers, each layer is represented and managed by a service manager with backup mirrored managers. The layer 4 service manger is responsible for management of multiple CDN (content delivery network). The layer 3 service manger is responsible for management of one CDN that has multiple data centers. The layer 2 service manager is responsible for management of one data center that has multiple server farms or service engine farms. The layer 1 service manager is responsible for all servers in a service farm. Each server of the server farm can be connected by LAN Ethernet (R) Switch Network that supports the layer 2 multicast operations or by Infiniband switch which is the new industry I/O specification for server design.