5 Importance of Framing in Computer Network, Work, Types, and Challenges

Do you know about farming in computer networks? Do you know about the importance of framing in computer networks? Why is this framing used? If you have also come to this site looking for answers to all these questions, then there is no need to worry. You have come to the right place. In this article, what is framing in computer networks? Importance of framing in computer network and why is it used and how does it work? Will know about all these things in detail.

You all must know that data is transmitted from one point to another in computer network. We use many protocols and technologies for these transmissions. Through this transmission, data packets have to pass through many layers and all the layers help these data packets to reach the right place.

To keep these data packets, secure in the network, all the layers apply some function on this data packet. One of them is framing. Data packets can be tampered with by unwanted persons inside the network and security problems may appear in the data. Therefore, security functions like framing are used to protect data packets in computer networks.

So, in this article, let us learn everything about What is framing, the importance of framing in computer network, its types and how it works in computer network.

What is Framing in Computer Networks?

You all must know that there is an OSI reference model in computer network which has 7 layers and through this data is transmitted from source to destination. When data initially passes from the physical layer to the second layer i.e. data link layer, it is in bit form.

The data link layer collects these and inserts them into a frame. So that data security is maintained. Framing the data is a function of the data link layer.

Framing in computer networking is the process of dividing a stream of data into smaller, manageable units known as frames. These frames are required for data transmission over the network to run smoothly. It provides structure to data and allows you to distinguish between the beginning and finish of each item of information in the data stream.

Like we put the letter inside an envelope and post it, so that the letter can reach the right people in the right way. Similarly, the data is sent inside the frame to the receiver so that the data can be transmitted in the correct manner. So, Framing is an essential part of the network.

Also Read: Important Features of Internet

How does Framing work?

Framing is a function that helps in correctly transmitting data from one point to another in a computer network. It works by breaking up a continuous stream of data and inserting it into the frame, which increases the chances of the data remaining safe.

This framing consists of source and destination addresses, which indicate the beginning and end path of each frame. This allows networking devices to know where the data should go. Apart from this, due to the presence of source and destination addresses in the frame, the related data is transferred from one place to another in sequence order.

The framing process also often includes error-checking mechanisms such as frame check sequence (FCS) or cyclic redundancy check (CRC). These checks help ensure the integrity of the data by verifying that it arrives without errors or corruption. Framing is necessary because it allows devices in the network to interpret and process data effectively. This ensures that it reaches its intended destination accurately and reliably.

Also Read: Basic Services of Internet

Importance of Framing in Computer Network

The importance of framing is very essential to transmit data from one point to another in computer networks. Apart from this, there are many reasons why framing is considered important in computer networks. So let us know the importance of framing in computer networks.

Data Organization

Through framing, the data being sent from one system to another is broken into small parts in a structured and organized way and put inside the frame. This enables networking devices to better understand and process the data and addresses inside the frame. Therefore, it is essential to structure and organize the data in framing so that smooth and efficient data transmission can be done.

Data Separation

In a computer network, many data packets are transmitted simultaneously from different sources. Framing in data transmission ensures that data packets are properly separated from each other. So that the networking devices used in computer networks can recognize the address of each frame and send it to its correct destination. No conflicts between data and data integrity are ensured. This is why framing is important in computer networks.

Also Read: Types of Ethernet Cables

Error Detection

Error detection or cyclic redundancy check (CRC) techniques are used in the framing method. in order to verify that the data within the frame is accurate. Errors that arise during data transmission can be found and fixed with the help of error detection techniques. Framing reduces data loss and helps to find and fix problems in data, which increases data reliability.


Frames often include addressing information, such as the source and destination addresses (e.g., MAC addresses). This addressing enable network devices to route frames to their intended recipients accurately. Framing is especially important in networks with multiple connected devices, ensuring that data reaches the correct destination.

Efficient Routing

Framing allows network devices to efficiently route data to its correct recipient. The addresses in the frame help routers and switches determine where to forward the data. This reduces network congestion and optimizes performance.

Framing is a fundamental element that helps data sent across modern computer networks safely reach their destination. Due to this framing, the problem of data collision and data loss is solved. Therefore, framing is considered an important function in computer networks.

Also Read: Advantages and Disadvantages of Computer Network

Types of Framing

There are mainly 2 types of framing in computer network.

  • Fix size framing
  • Variable size framing

Fix-size framing

In fixed-size framing, all frames are the same size. This is a technique in which data is divided and placed inside a frame of predetermined size and then transmitted. Usually, this frame size is 1500 bytes.

Since fixed-size frames are identical, it is easy to simplify the frames on both the sender and receiver sides. This makes it easier to split the sender’s data stream equally. Apart from this, it also becomes easy to know how much data the receiver has to receive.

A major drawback of this frame is that when the transmitted data is smaller than the fixed frame size, it can lead to inefficient use of bandwidth. In these cases, part of the frame may also be filled in padding. This can waste computer network resources.

Padding is sometimes used to fill a fixed-size frame. If the data is smaller than the size of the frame and the frame is not full, then padding technique is used in it. The padding ensures that all frames are consistent in size. But it is used while sending short messages.

Also Read: TCP/IP model vs OSI model

Variable size framing

This variable size framing in networking varies in size. Each type of frame stores different amounts of data. This is the opposite of fixed-size framing. Each frame contains a variable amount of data, allowing greater flexibility in accommodating different data sizes.

It increases bandwidth efficiency. This framing ensures that no network resources are wasted by adding unnecessary padding. This is particularly important because it allows more efficient data transmission and uses less network resources.

Variable-size framing typically offers more flexibility than fixed-size framing. Due to the size of these frames, only the amount of data that has to be sent is sent as a frame. This framing is better for those tasks where data of different sizes is transmitted. Such as video streaming, video conferencing etc.

Handling variable-size frames can be more complex for both sender and receiver devices, as they need to identify the start and end of each frame without relying on a consistent frame size. This complexity is managed through the use of delimiters or length indicators within the frames.

Also Read: 3 Major Switching Techniques

Challenges and Solutions in Framing

Preparing frames according to data in computer networks is a very difficult task which involves many challenges. So let us know about those challenges and how they are solved.

Variable Data Sizes: One of the biggest challenges in framing is the size of the data. Generally, the size of the data sent in computer network is different. It is therefore complex to accommodate this variability while maintaining efficient frame boundaries.

Overhead: Adding start and end delimiters, addressing information, and error-checking mechanisms add overhead to each frame. This overhead can consume network resources and reduce the efficiency of data transmission.

Synchronization: Maintaining synchronization when sending data between a sender and a receiver can be challenging. This is especially when variable-size frames are used. If synchronization does not occur, there is a possibility of misinterpretation of frame boundaries.

Error handling: However, error-checking mechanisms are necessary in networks during transmission. This presents challenges related to detecting and correcting errors in real time. Handling errors efficiently without causing delays or data loss is a serious concern.

Also Read: Important Functions of Network Layer


To address variable data sizes, protocols such as Point-to-Point Protocol (PPP) with variable-size framing are used. They include a length indicator within each frame to help devices identify the size of the data, eliminating the need for padding.

The use of well-defined start and end delimiters, along with proper synchronization mechanisms, helps devices accurately identify frame boundaries. Efficient clocking and synchronization techniques maintain consistency.

Efficient error-detection mechanisms, such as cyclic redundancy check (CRC), are important for error detection. To resolve errors in the frame, solutions such as Automatic Repeat Request (ARQ) are used to help retransmit the frame.

Solving framing challenges often involves a combination of protocol design, error-checking mechanisms, and network management techniques in computer networks. This ensures efficient and reliable data transmission.


What is the concept of framing?

Framing in networking is required to organize and structure data to transmit it efficiently. In this process the sequence data is divided into manageable units and put inside the frame and sent to the destination. These frames are contained with specific start and end delimiters, addressing information, and error-checking mechanisms.

What is the maximum size of an Ethernet frame?

The maximum size of an Ethernet frame, including both data and frame header, is typically 1518 bytes. This size is defined in the IEEE 802.3 standard, which is commonly used for Ethernet networks.

What are the 2 main types of framing?

Generally, framing in computer network is 2 types
·        Fix-size framing
·        Variable-size framing


In conclusion, framing is a fundamental process in computer networks which plays an important role in data transmission. Through framing, the sequence of data is divided into small parts and put into a frame and transmitted to the receiver. This increases the security of data. Furthermore, framing is very essential in computer networks to effectively organize, transmit and receive data.

I hope that after reading today’s article you have understood the importance of framing in computer networks. Apart from this, information about what is framing, types of framing in computer network and how it works is also given in this article. If you have any doubt in your mind even after reading this, then you can tell us. We will try our best to solve your doubts.

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