What Is A Possible Cause Of Runt Ethernet Frames When A Switch Is Being Used?

What is a possible cause of runt Ethernet frames when a switch is being used?

• Half-duplex misconfiguration.
• Extravagant cable length.
• Malfunctioning of NIC.
• Overdue collision.

Answer: The malfunctioning of NIC is the possible cause of runt Ethernet frames when the switch is being used. The runt frames size is less than 64 bytes and is considered as the minimum Ethernet frames size which is allowed.it is the type that is due to the NIC malfunctioning or the overdue collision. The misconfiguration of the duplex is the reason for the problem in the connectivity. The extravagant length of the cable causes errors in CRC or an overdue collision.

The runt Ethernet frames are usually less in size and the minimum size is 64 bytes and have poor FCS. In the half-duplex, the frames are almost due to the collision. If the frames happen even the collision is not high or in a full-duplex condition then maybe they are the outcomes of poor software or the NIC.

Moreover, we know that the encapsulated data is known as the Ethernet frames which are defined by the network access layer. The frames begin with the header which has the physical address of the source and destination along with other information. The frames center is the actual data and the end of the frames along with a field is known as the frame check sequence (FCS). the part of the frame is described in the following:

Preamble: 

It gives the information about the receiving system which enables the synchronization and is also responsible to start the frames.

SFD:

It can determine that the destination’s physical address initiates with the next byte.

MAC address of destination:

It can identify the receiving system.

MAC address of source:

It can determine the sending system.

Type:

It can identify the protocol type within the frames such as it is either IPv4 or IPv6.