What is a broadcast domain and collision domain ?

[Ryan21]

Hi,

I want to know about broadcast domain and the collision domain. According to me, At a time only 1 pc can transfer packets at a time in collision domain and in broadcast domain, all pc's will be listening to all packets. Does I am right ??? Suppose in a network, for example 4 different networks connected through a router, what happens if you use a switch that changes? Can you tell me in detail, about what is a broadcast domain and collision domain ?

[Theodot]

A collision domain is a logical area of a computer network where data packets can collide with each other, especially with the communication protocol Ethernet. A collision domain can be a single segment of Ethernet cable, a single hub or even a complete network of hubs and repeaters. Typically, a hub as a single collision domain when a switch or a router creates per port, which reduces the risk of collision. When Ethernet is used in duplex mode (full duplex), there is a collision domain.

[CoModO]

A broadcast domain, or Broadcast is a logical area in a network of hosts, in which any host connected to the network can transmit directly to another in the domain do not require any routing devices / Route, sharing the same subnet and gateway, and are on the same VLAN (default VLAN or installed, remember that the default VLAN1 is configured on Cisco devices)

[Kylebrn]

Collision domain as the name implies, is a specific area where collisions occur constantly, an example would be a hub, as all hosts connected to the attempt to send at a time first by being half-duplex can only send or receive one time and second that all share the same bandwidth, ie the hub is a single collision domain. In contrast with the switches is quite the contrary, besides working in full duplex mode, each port maintains the same bandwidth individually, ie not shared between all ports, so each switch port is a single collision domain.

Broadcast Domain instead is all a complete network in which the frames are sent to all hosts that belong to this network, so it is said that a separate broadcast domain router that interconnects networks and does not require permit to network another broadcast separately but simultaneously is routed through the router. A clear example of broadcast domains are different VLANs.

[Leonard23]

A collision domain is made by packets when traveling by the same means, but it usually does a hub, through the CSMA CD protocol, packets collide, when you have a switch that removes because each port has its own collision domain, ie there are as many domains as collision switch ports.

Broadcast domain is generated at each network segment, that is, each network has its own broadcast domain, which is used to send packets as arp protocols necessary to know the entire network. If you have two its varying networks have two broadcast domains, you have so many broadcast domains as ports on the router ..

[TX-Snakebyte]

A collision domain connects to the same physical medium, so that when two warehouses send data at the same time, they collided and got corrupted data to its destination. The result of having a domain of collisions involving several machines use a wide exes band, and a very slow network.

Broadcast domain is a logical network devices that share the same subnet and the same liaison, so that all devices within a domain and gives them may receive broadcast from the other hosts, if a host sends a broadcast request to all hosts types within the same domain as receive regardless of whether they are connected to the same switch or not. In a company is not very convenient