The network layer offers its functions to the transport layer, and for that, it takes services of the data link layer. Its functions are carried out by adding a header to every Network Service data unit (N-SDU). This header is in the form of Protocol Control Information (PCI). Thus a ... Read More

PPP is a protocol that is generally used to provide similar functionality as SLIP. It is the best robust protocol that can transfer different types of packets also along with IP Packets. It can also be needed for dial-up and hired router-router lines. It generally supports the framing techniques to ... Read More

A mode in HDLC is the realigning between two machines contained in a network. The mode describes who controls the link. HDLC determines three types of stations such as primary, secondary, and combined.A primary station is a controlling station on a connection. It controls the secondary stations on the connection ... Read More

The HDLC process is regulated by the International Organization for Standardization (ISO). This is possible for high-speed communication of a high amount of information. The necessary control process cannot support this communication.The HDLC process has been regulated and established on the SDLC. In addition to the characters, bit strings of ... Read More

The Hamming code can be used to the data units of any length when we consider the two codewords which have the same length. The Hamming distance between two codewords is represented as the number of positions in which their specific item differs.ExampleHamming Distance is 3.Hamming code is also known ... Read More

In the detection method, only the error can be detected. Still, in the error correction method, the errors are corrected automatically at the receiver end and no need for re-transmission.  The burst error correction is very limited to 2 bits only.Each kbit block of data is added with redundant bits ... Read More

Parity Bit is the simplest and frequently used method for detecting an error. In this method, we have to join a parity bit to the end of the data structure. The bit is so chosen that the weight of codeword is either even or odd of, i.e. V is the ... Read More

There are a few effects of errors which are as follows −Attenuation: Due to error, the signal may get attenuated, i.e., the data may be costly in the extreme case.Delay Distortion: Due to this error at the receiving end, the wave is distorted due to a delay in transmission.Interference in voice communication ... Read More

User Datagram Protocol (UDP) provides a connectionless packet service that offers unreliable 'best effort' delivery. This represents that the packet's arrival is not guaranteed, and also there is no guarantee for the correct sequencing of forwarded packets.An application that does not require an acknowledgement of data receipt. For example, audio ... Read More

TFTP represents the Trivial File Transfer Protocol. Some applications do not need the full functionality of TCP, nor can they afford the complexity. TFTP supports an inexpensive structure that does not require complex interactions between the client and the server. TFTP confine operations to simple File Transfer and does not ... Read More