Broadcast domain

What is broadcast domain?
A broadcast domain is a logical part or subdivision of a computer network. In a broadcast domain, all nodes can be reached via broadcast on the data link layer. Broadcast domains are located on a network or a network segment. Multi-network segments require a bridge, e.g. B. the network device. A broadcast domain member can also be a device or computer that is directly connected to the same switch or repeater. Network devices such as routers are used to separate the boundaries of broadcast domains.

A broadcast domain offers high communication and reliability over a simple Ethernet connection. An assigned broadcast domain or destination receives addressed and transmitted data frames that are recognized by each node. However, data frames are only received by addressed nodes. The best example of a broadcast domain is a virtual local area network (VLAN), in which multiple computers use a virtual link to create a broadcast domain that is not physically connected. A broadcast domain enables fast and reliable communication for offices in different locations. A broadcast domain drawback is its tendency to drop web data signals after reaching network router interface boundaries.

In addition, problems arise when a router connects two or more broadcast domain networks. Leave networks A and B connected via a router. Network A, which has a Dynamic Host Configuration Protocol (DHCP) server, broadcasts Internet Protocol (IP) addresses to all connected computers. The DHCP service also tries to send IP addresses to all computers connected to network B. However, the router is sending incoming messages and the computers on Network B are not configured correctly. Such problems occur in broadcast domains. Current routers are manufactured with advanced features such as: B. without DHCP request blocking.

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