#What is the purpose of having multiple desktops on mac mac#
They learn the MAC address of the requester and the port or the location of the device which responded to the request almost instantly. Switch: Switches do same what a hubs do but they do it intelligently. If the same email address exits then the mail would be delivered else the delivery of the email would fail.īridges are usually required to connect parts of a network that do not communicate very often but need to remain connected. If the email address says then the system would search n the other side. The working of a bridge can be compared to an email, which can only be delivered to the destination email address and nowhere else. A bridge is also called an intelligent hub because it considers the destination of data before delivering it. Thus a bridge creates two collision domains.
It receives data from one interface and delivers it to the other interface, it is connected to.
They also send all the data to all the computers connected to it but unlike hubs, they have just one source and one destination to deliver data packets. It allows the network resources to be shared among computers.īridge: The bridges are just one step above the hubs. The only benefit of a hub in a network is to connect various network devices together, which may range anything from connecting a computer to a computer, computers to network devices, and a computer network to another computer network. A hub operates on the Network Layer 1 of the OSI model and can only detect basic network errors such as network collisions. With the increase in the number of ports in a hub network, the possibility of collision also increases. The job of a hub is simply sending out anything that comes to it to other computers connected to it.Įvery computer connected to hub can see every other computer on the hub. Thus a hub has one segment and one collision domain. Each port on the hub is on the same network segment. It sends all the network data to all the computers connected to it, without using any intelligence of its own.
Hub: A hub a very basic network device that connects all the computers together in a network. Let us understand each of these network devices in detail: Some other network devices such as Hubs, and Access Points are also commonly used in a network. The subnetting of a network is possible only through network devices such as switches, routers and bridges. The breaking of a network into smaller network segments is called subnetting. To avoid network traffic congestion, a large network is usually broken into small network segments. Too many network hosts can cause network traffic congestion and when too many packets are transmitted on a network, the performance of the network degrades to an extent that no packet is delivered. Describe the purpose and functions of various network devicesĮxam: Cisco 200-120 - Interconnecting Cisco Networking Devices: Accelerated (CCNAX)Īs your network grows, it needs to be broken into smaller networks or network segments to ensure better performance of the network.
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