Once the MAC address is verified, the frame header and trailer are stripped creating a packet that is transmitted using network protocols for further processing. This is the actual job of NIC in one direction.
Now for an out-going data, the reverse process is used. The network protocol transfers a packet to the NIC. Now the frame is ready to transmit. The NIC converts the frame for transmission onto the medium as bit signals. Thus, this article briefs out about network interface card or network interface controller which is an electronic hardware component integrated with computers. The main purpose of this is to communicate with other devices either wired or wirelessly.
The main vendors of network interface cards are Intel, Cisco, D-Link, etc. This was originally a full-sized interface card installed within the computer. Today, this is often integrated as a part of the computer, but sometimes still called a NIC.
One queue of frames corresponds forms the transmit Tx queue for the physical interface The Host protocol stack completes a Tx descriptor data structure for each packet it sends and adds this to the queue specifying the length of data, location in memory, etc. The host software then writes a register in the interface to ask for the queued frames to be sent.
The interface then takes over. It typically performs a DMA transfer of the data, and then serialises this to form a physical layer frame by adding the information needed to create a physical frame. The Study Genius. NIC means network interface card is a hardware component, install in computer devices, used to connect a computer to the network. So to create a network, NIC has a very important role. It is the most necessary hardware component for a network connection, install in computers, servers, printers, or any other devices that allow a device to connect with other devices on a network.
It is a very basic network hardware component, which provides a network interface, without it a computer cannot be connected to any device on the network. Any device which wants to connect to the network must contain a NIC card , even switch and routers also consist network interface card NIC in order to connect to the networks. NIC install in one computer is used to communicate with other NICs which installs to another computer. If I have a computer and I want to connect to a network.
So to connect my computer with other computers or to connect with the internet, I need a NIC card installed in my computer, which provides my computer a unique MAC address, which helps to connect to the network. So NIC card provides us a network interface.
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