Link Layer

1288
Network Layer / Link Layer
Network Layer / Link Layer

The Internet's network layer is responsible for moving network-layer packets known as datagrams from one host to another. The Internet transport-layer protocol (TCP or UDP) in a source host passes, a transport-layer segment and a destination address to the network layer,

Tags network layer, transport layer, link layer
1967
Physical Layer / The OSI Model
Physical Layer / The OSI Model

As the job of the link layer is to move entire frames from one network element to an adjacent network element, the job of the physical layer is to move the individual bits within the frame from one node to the next. The protocols in this layer are again link dependent and further

Tags network layer, protocol stack, link layer
1429
Principles of Reliable Data Transfer
Principles of Reliable Data Transfer

In this section, we look at the problem of reliable data transfer in a general context. This is appropriate since the problem of implementing reliable data transfer takes place not only at the transport layer, but also at the link layer and the application layer as well. The common

Tags data transfer, transport layer, link layer, application layer, unidirectional data transfer
1007
The Link Layer and Local Area Networks
The Link Layer and Local Area Networks

So far we have learned that the network layer provides a communication service between two hosts. As illustrated in Figure 1, this communication path comprises a series of communication links, starting at the source host, passing through a series of routers, and ending at

Tags network layer, routers, link layer, frames, network adapter
1248
Error-Detection and -Correction Techniques
Error-Detection and -Correction Techniques

In the previous section, we noted that bit-level error detection and correction - detecting and correcting the corruption of bits in a link-layer frame sent from one node to another physically connected neighboring node - are two services often provided by the link layer. We saw in

Tags link layer, parity bit, fec techniques, checksumming techniques, internet checksum, crc codes
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