What Is The Minimum Size Of An Ethernet Frame?
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What is the minimum Ethernet frame size?
Answer: The minimum Ethernet frame size is 64 bits, any frames which are smaller than the minimum size are described as the collision part or runt frames that need to be removed.
The Ethernet frames are described by the IEEE standard, it starts with the preamble and the SFD which work on the physical layer. The header of the Ethernet has the source and the destination MAC address. the end field is the CRC that can find the errors. Let’s discuss the Ethernet frames in the following:
The general terms for describing the frames are their size and the MTU (maximum transmission unit) size. The total frame of the Ethernet is the sum of the total Ethernet header (14 bytes). payload filed of Ethernet (the IP frames .1500 bytes), and the last field check sequence field (4 bytes).
The purpose of the Maximum size units is to define the highest number of the bytes of data that are enclosed in the frames of the Ethernet, such as the default MTU size of the Ethernet frames is 1500 bytes. Moreover, the highest frame size of the MTU is 9000 and it is also configured.
Advantages of increasing the Gigabit Ethernet frame size
The pros of the increment in the default size for Gigabit Ethernet will assist the storage system and the infrastructure of the Gigabit Ethernet frame. The performance is also increased significantly depending on the work.
Pros of the Jumbo frames
The jumbo size might be used to lessen the processing of the CPU with the network interface, as the jumbo is greater in size than the normal frames.
Flow control
Flow control is the maintenance of the frame flow among the directly connected link partners. with the help of the flow control, the packet’s movement can be paused and then start from the point when it is needed.
The minimum size of the frames are 64 bytes while the maximum is 1518 bytes .and it consists of all the field included in the frames except the preamble and the start frame delimiter. The size of frames less than 64 is the collision fragment and discarded from the destination station. The size of the frames increased for the VLAN tags. If there is any change in the size of frames the designated device will drop the packets, which are the reason for the collision or the unwanted signals which considered as invalid the frames are almost the same at the data link layer, while at the physical layer different version are present and their methods vary for detection and the placement of the data in media.
The formula for the maximum number of frames per second is:
Ethernet Data Rate (bits per second) / Total Frame Physical Size (bits)
Suppose we have the data rate of 10 000 0000 and the total frame size is 84 then:
= 10 000 0000 / (84 x 8)
= 14 880 frames per second.