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Advantages and Disadvantages of the TCP/IP Model
The advantages of TCP/IP protocol suite are
- It is an industry–standard model that can be effectively deployed in practical networking problems.
- It is interoperable, i.e., it allows cross-platform communications among heterogeneous networks.
- It is an open protocol suite. It is not owned by any particular institute and so can be used by any individual or organization.
- It is a scalable, client-server architecture. This allows networks to be added without disrupting the current services.
- It assigns an IP address to each computer on the network, thus making each device to be identifiable over the network. It assigns each site a domain name. It provides name and address resolution services.
The disadvantages of the TCP/IP model are
- It is not generic in nature. So, it fails to represent any protocol stack other than the TCP/IP suite. For example, it cannot describe the Bluetooth connection.
- It does not clearly separate the concepts of services, interfaces, and protocols. So, it is not suitable to describe new technologies in new networks.
- It does not distinguish between the data link and the physical layers, which has very different functionalities. The data link layer should concern with the transmission of frames. On the other hand, the physical layer should lay down the physical characteristics of transmission. A proper model should segregate the two layers.
- It was originally designed and implemented for wide area networks. It is not optimized for small networks like LAN (local area network) and PAN (personal area network).
- Among its suite of protocols, TCP and IP were carefully designed and well implemented. Some of the other protocols were developed ad hoc and so proved to be unsuitable in long run. However, due to the popularity of the model, these protocols are being used even 30–40 years after their introduction.
Updated on: 17-Jun-2020
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