If, by "HUSwith" you mean "hubs with", and by "hub" you really mean "hub" and not "switch" then you'll have either three collision domains (if the three hubs are not connected to each other) or a single collision domain (if the three hubs are connected to each other). Replace the hubs with switches and you'll have 30 collision domains, if the switches are not connected, or 32 or 33 if they are (depending on how the inter-switch connections are made: two switches connected to a common third vs. each switch connected to both the other two).
A collision domain consists of all the clients that could possibly cause a collision amongst themselves by sending a packet at the same time. Devices such as hubs create a single collision domain which means that everyone connected to the hub has the capability of causing a collision (which is a problem).A broadcast domain consists of all the clients that can receive the same broadcast packet. Unlike a collision domain this is not a problem. Think of it as those systems that are capable of receiving the broadcast message.
A switch or router will limit the number of clients in a collision domain, thus limiting what can be in the collision domain.
two computers connected to the same hub AND two computers connected to the same access server
For any amount of clients connected to a hub you will get a total of 1 collision domain. A hub is a device that simply repeats all of the signals from the ports and does not separate clients into separate collision domains.
Hubs do not reduce collision domains. All devices connected to the hub are in a single collision domain, where as on a switch, each port is its own collision domain.
A hub contains a single collision domain and a single broadcast domain, regardless of the number of ports on the hub.
Like a switch, a router places nodes that are connected to it in separate collision domains.
Yes. A hub will be one giant collision domain for that entire switch port. So if its an 8 port hub and you have 8 devices connected to it that collision domain will have 8 devices in it.
A collision domain is an area on the network where two devices may attempt to transmit at the same time. A hub has 1 collision domain overall. A switch has 1 collision domain per interface. The fewer devices in 1 collision domain, the better. ----
AnswerYes. You can't split a broadcast domain without also splitting the collision domain. The only devices that can split a broadcast domain are routers and layer 3 switches. Switches, bridges, and routers can all be used to split the collision domain. Hubs and repeaters do not split the collision domain or the broadcast domain.
in my opinion there is no any collision domain in the router......but switch has collision domains for each interfaces & hub has one collision domain
Collision domain