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The TCP/IP Guide  9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)       9  Name Systems and TCP/IP Name Registration and Name Resolution            9  Name System Issues, Concepts and Techniques

Name System Functions: Name Space, Name Registration and Name Resolution 1 2 3 Name Registration Methods, Administration and Authorities

Hierarchical Name Architecture (Hierarchical or Structured Name Space)

In this architecture, while names consist of a sequence of symbols, these symbols are assigned using a specific and clear structure. The name consists of discrete elements that are related to each other usually using hierarchical “parent/child” semantics. There are many naming architectures in various contexts that use this type of hierarchical structure; for example, consider how a large company might set up an organization chart and name the executives and officers in the organization. One hypothetical example of a hierarchical name architecture is illustrated in Figure 233.

The best-known real world example of a hierarchical name space is the name space of the TCP/IP Domain Name System, which uses text labels separated by periods (“dots”) to form an internal structure. All the names in the system are organized into a structure, and a particular device's place in the structure can be determined by looking at its name. For example, “www.tcpipguide.com” refers to the World Wide Web server for The TCP/IP Guide, which is named under the umbrella of “COMmercial” companies.

Name System Functions: Name Space, Name Registration and Name Resolution 1 2 3 Name Registration Methods, Administration and Authorities