What is ARP (Address Resolution Protocol)? This protocols main purpose is to identify network nodes MAC address using its IP. ARP creates database of discovered nodes in the network and saves it on local machine for future use.
Whenever one node of the network needs to know some other nodes MAC address, it broadcasts the ARP message to the network. Message contains ...
TCP/IP model has been developed much later after OSI model. OSI was developed as theoretical model, while TCP/IP was more practical. TCP/IP is having just four layers in oppose to seven layers of OSI. All the layers are roughly corresponding to the osi model as shown in Figure 1.
Figure 1. The TCP/IP model compared with the OSI model
Application layer is ...
TCP/IP (Transmission Control Protocol / Internet Protocol is a package of network protocols that include TCP, IP, UDP, ARP and others. These are called subprotocols. When someone say TCP/IP they most likely refer to the whole group.
It has been developed for Advanced Research Projects Agency Network (ARPANet) by US Department of Defence. Later it has been adopted by other network ...
Poor cable installation techniques and lack of experience could create many network problems. Grade of cable or crimping failure could fail the network completely or cause damage in the network that will result in future failures. This article is intended to provide cable installation tips for preventing Physical layer failures.
Twisted pair cable should not be untwisted for more than one-half ...
Serial-data transmission where bits are continuously transmitted in a single transmission line. Most common serial data transmission method is called RS-232 (Recommended Standard 232). RS-232 specifies Physical layer values like voltage, timing, and compatibility. This standard is used with most common connectors - RJ-45, DB-9, and DB-25, or lotus screw type, as used in our video over fiber equipment series.
Serial ...
The core of the fiber-optic cable is made of one or multiple glass or plastic fibers. Central fibers are used as media for transmitting data, which is being sent in light beams from a laser or a LED. The core is surrounded by layer of plastic or glass with different density, which is called cladding. Its purpose is to reflect ...
