Network Integration Models and Access Methods

Models of Network Integration

Typically, a network encompasses a wide range of technologies. Not all technologies meet all the needs of the network administrator. A network of a certain size is usually a mixed-technology network due to the various factors involved.

Key Aspects of Network Integration:

• Wiring System Response: The wired network forms the backbone of any Local Area Network (LAN). Typically, all servers have at least one connection to the wiring harness, and if they handle substantial traffic, the connection is high-speed. Clients can connect to services through a structured cabling network or wireless connections. Note that the bandwidth of a wireless access point is generally less than that of wired Ethernet access and is shared among all connected clients.

• Network Architecture and Protocols Based on Routing System: Although most network operating systems today use TCP/IP, there might be devices on the network that do not meet this requirement or provide services using different protocol architectures. In many cases, network devices will be necessary to translate between the protocols used by clients and servers.

• Based on Network Operating Systems: Each computer connected to the network has its own operating system. When providing a service on the network, it's crucial to ensure that the service is accessible by clients with different operating systems, considering both the manufacturer and the version. When dealing with disparate technologies, the administrator may sometimes need to impose certain restrictions.

• Client Access Methods: Each service has its own identity on the network. Accessing it requires both its identity and the method of access. The management of this access also depends on the client and their location on the network. Accessing a service via modem is different from accessing it directly on the LAN. We can distinguish four possibilities based on the client access model:

  • Switched Local Access: Clients are on the same local network and access the server directly. The connection between the client and the server is established through a single switch.

  • Authenticated Local Access: The client and server are on the same LAN, but access to the server requires authentication.

  • Authenticated Remote Access: The client is in a remote location relative to the server. Access may be via modem or the Internet, typically involving some form of authentication.

  • VPN Access: The remote client uses a public network to create a secure tunnel, allowing access to the local network. Data is encrypted for security.