Networking Question?

I'm in a networking class, and I'd like some opinions to how to solve this problem, and if you can, please explain why it would help.











Recently, you connected two departments' 10BaseT hub-based networks by connecting the two hubs with a 10BaseT cable. Now workers on both networks complain that the network is too slow. Why has the network degraded? Develop a plan to ease traffic on the network, including any additional hardware requirements.

Networking Question?
Multiple hubs with many users is bad news- all traffic broadcasts- it cannot be routed. A switch uses MAC addresses to send information to specific computers, printers, or whatever has a NIC. In order for 2 computers behind a hub to talk to each other, one has to broadcast to the whole network that it is looking for the other one. Then, the other one has to broadcast to the whole network that is listening. Everybody in the same room can only find other folks by shouting out the name of who they are looking for.
Reply:Accouple of back ground info.... Network speed 10mb/100mb.1gb is based on a series of devices a slower speed on any device will slow down the entire network to the slower speed.





So even with a 1gb hub/switch the 10baseT cable will slow the network to 10mb...





With the networks connected by hubs. Simply put all traffice get broadcasted through all ports, all cables, all hubs, goes to everyone.. can you see that this clobbers the network...





So with each department on seperate networks there was less "broadcasts" clobbering the network....





When the two were connected each seperate "broadcasted" signals were now being sent accross both networks....





If you are not accessing the internet, you do not need a router..





There is two options I see:


Option one:


Install a bridge (it is like a 1 port switch) between the two hubs. This cuts down on most "broadcasts" but still allows traffic to pass through..





Option two:


Put both networks on one switch, establish two VLANs (you'll learn this in class). Simply put each pc connected is it own network and less broadcasts will increase the speed of the network.





Getting faster cables or hubs "could" help but I think the instructor is looking for a switch. either between the hubs, or replacing the hubs..





In todays technology a bridge, while it may do the job is obsolete, so the switch is the way to go.





Anywho hope this helps...
Reply:the traffic is probably botlenecking at that one 10Base T cable.





Instead you could use a larger hub or a switch that can hold all of the clients.
Reply:10BaseT was the original standard in LANs. If you have installed this type of network and now your users are complaining of speed issues its due to limitations at 10Mbs. You can upgrade the network using 100BaseT Hubs without having to use different cable. This saves money and time while increasing speed and efficency 90%.





Also you can have one Router working as a DHCP server (issuing IP addresses) and two routers connecting to that gateway instead of hubs increasing the number of collision domains thus improving network efficency even more
Reply:.


The Network degraded when you connected the two with 10 Base T.





Upgrade the ethernet cable to 10 Gigabit Ethernet (10GE).





Also consider a faster routers to replace hubs





h2h
Reply:You really need a Switch or even a Router. There is too much broadcast traffic.
Reply:Hubs share the base bandwidth between all ports. In other words if one port is pulling 8Mbps then the other ports will only have 2Mbps to share from. On the other hand a switch gives full bandwidth to every port.