Skip to main content

Networking Devices

 What is the use of network devices ?

 - Network Devices or internetworking devices are used to establish a network connection inside the corporate environment. Take  a look at the concept of internetworking devices and how they work.

-NIC - NIC stands for network interface card. It is indeed a circuit board or a card that is installed in a computer so that it can be connected to a network. Actually the network interface card provides the computer with a dedicated, full-time connection to a network. NIC specifically designed for the LAN transmission technology. also there is WLAN.

 -Repeater - Repeater is a network device, which used to regenerate or replicate a signal. It removes unwanted noise in an incoming signal. Unlike analog signal, the original digital signal, even id weak or distorted, can be clearly perceived and restored. Repeater operates at layer 1 of OSI.
 - HUB - Basically a hub is a common connection point for devices in a network. Hub are commonly used to connect segment of a LAN. A hub contains multiple ports. when packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets. Hub operates at layer 1 of OSI.


  - Bridge - Bridge devices inspect incoming  network traffic and determine whether to forward or discard it according  to its intended destination. An ethernet bridge, for example , inspect each ethernet frame - including the source and destination MAC addresses, and sometimes the frame size -in making individual forward decisions. Bridge devices operate at the data link layer of OSI model.

 - Switch - A switch is a very common types of networking device that channels coming  data from any of multiple input ports  to the specific output port  that will take the data toward, its intended destination in a telecommunications network. The switch determines  from the physical device like MAC address in each incoming message frame which  output port to forward it to and out of.

 - Gateway - A gateway is network node which connects two networks in different protocols. Gateway can take several forms, including routers or computers and can performs a variety of tasks.
 These range from simply passing traffic on to the next hop on its path to offering complex traffic filtering, proxies or protocol translations at various network layers.



  - Router - Router is one of the most used networking devices used to sharing internet connection between two devices. The operation of router is complicate as it can be both software and hardware and operate at layer 3 of OSI.


 - Modem - MODEM stands for modulator-demodulator . A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. A modem converts between these two forms (analog to digital and vice versa).



Comments

Post a Comment

Popular posts from this blog

what is computer network and their types ?

   what is network ? -  A network is a group of two or more computer systems, which are connected together. It also consist of a collection of computers, printers, scanner and other devices that are liked together. Networking has single purpose to share information as fast as possible.   The basic types of network- 1) LAN - LAN stands for Local Area Network. It is used to network computers within a limited area like office, school by using the network media. 2) CAN - Campus Area Network is an interconnection of local area networks within limited geographical area. campus network can be additional to the set of wireless connections. connects several buildings to the same network. Example, corporate office campus, university. 3) MAN - MAN means Metropolitan Area Network, which optimized for a larger geographic area than a LAN, ranging from several blocks of buildings to entire city. 4) WAN - WAN is Wide Area Network that is network connection of wide area such as the w...
Post a Comment
Read more

Network Topology and types

   What is topology ? - Network Topology is the arrangement of the various elements (links, nodes etc.) of a computer network. Essentially, it is the topological structure of a network and may e depicted physically or logically. Topologies are divided into two types. one is called physical topology and another one is logical topology. Physical Topology is the placement of the various components of a network, including device location and cable installation, while logical topology illustrates how data flows within a network, regardless of its physical design. There are number of reasons to understand network topology. - The network topology impacts performance - The network topology is a factor in determining the media type used  to cable the network. - Knowledge of network layout  helps to optimize the network  performance  and troubleshoot network performance issues. Topology                      ...
Post a Comment
Read more

All about Hyper-V in windows 10

   Windows Client-Side Hypervisor  l The client-side Hypervisor known as Client Hyper-V was introduced in Windows 8 Operating system. In Windows 10,  t he Client-side Hyper-V has got its features enhanced. Need for client Hyper-V - l Client Hyper-V is used to test or perform demo of operating system features or particular application software.  l Client Hyper-V can also be used to Run a legacy application that are not supported by Windows 10 .  It is used for User support and Troubleshooting. Features of Client Hyper-V are :   l Client Hyper-V supports 32 bit or 64-bit Virtual Machines.  l Used for storage migration or can also be used to create a virtual storage pool.  l Client Hyper-V uses VHD with maximum limit 2TB or VHDX with maximum limit of 64 TB software disk files.  l It can use local software Disk or LAN based storage also known as NAS Network Attached Storage.  l Client Hyper-V supports Import and Export of the VMs to Ser...
Post a Comment
Read more