Links and Networking

Hey,
My CS teacher asked me to find a few lectures on Computer Networks like Peer-to-peer, Client/Server modal, hybrid etc. Anything. So can anyone give me a few links to lectures that aren’t TOO complex. I’m in the 11th grade. And no, this is NOT a homework.

Can you send me 3-5 links to video lectures. If you can find more, it’s even better! Thanks in advance for your support.
Need video lectures, the teacher will show everyone on a laptop, so written is not an option :/ And I’m the only one who is supposed to bring some lectures. That’s because I know more about computers than the rest of the class. Of course, I’ve found some too but you can help as well.

Are you against reading…

Those are all basic concepts I dont think you can call those lectures…

You can find lectures on Protocols, practices even software…

I truly doubt your teacher going to look at ever lecture every student brings in…

There’s nothing complex about: Peer-to-peer, Client/Server model, hybrid etc.

And most lectures or "Webinars" you must sign up for….
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Well buddy your best bet is to video cap some webinar videos as like i said lectures on that will be covered in the basis… and lectured in webinars, as if i sign up for one and send it to you, you will need an account as well… try looking for some on torrents too.

Good Lucky

Help me decide which offers better computer networking switches. Ours is a startup company and looking to enhance IT infrastructure.

Since you specified networking I’ll assume you mean ethernet and would say Cisco. If you are doing fibre channel then I’d say Brocade.

Brocade is a storage switch company. Cisco is an ethernet company. I’ve used products from both

I have also been pleased with Foundry.

I am setting up a network with about 10 ports needed for devices. A few of those ports are for IP phones, and so they need the POE feature on the switch, which is power-over-ethernet.

I am using a simple cable router which will be providing the internet for the network.

Here are my questions. Are all switches able to route internet traffic from the router to the devices plugged into its ports? Do I just plug the cable router ethernet output into one of the switch ports, and the rest of the devices into the other ports, and the switch will know how to route the traffic?

I know how to setup static IP addresses for the devices to have, so there are no conflicts, I just wasn’t sure if I need to be looking for a special switch when I am having an internet router involved in the mix. I wasn’t sure if there were switches that had a special port input for feeding the network internet, or if all switches can handle a router input.

Thanks
Great, Thank You JoelKatz.

Now I know that I can just look for any switch that has the number of ports I need and POE.

It sounds like you won’t be doing anything complicated with the switch like setting up vlans though if you’re going to have ip phones they really should be on their own vlan so one vlan for data, one for voice, one for management just as an example.

Once you do that on the switch, you need to set up qos so that voice traffic gets priority. There ARE switches that are capable if routing called layer 3 switches and are quite common though they are usually used at the distribution and core layers of the network and so usually don’t have ip phones attached but I wanted to let you know that there are definitely switches that route. Hope that helps!

If a company is using multiple switches, just because it’s easy to just place switches in a room, rather than to wire cables from the wall-outlets to a switch, how will it affect the network?

It’s the difference between direct cabling to the wall-outlets and switching from the server to multiple switches to the end-computer.

direct cabling:
server => switch => wall-outlet => computer

multiple switches:
server => switch => switch => switch => computer

Will the multiple switches really decrease the performance on the network?

In your example, you only have one computer networked through a series of switches connected to a server. Of course, this kind of setup will never be as efficient as a straight link between the nodes, i.e. server<->switch<->computer, but it will be pretty close; this is mostly dependent on the quality of the hardware in use.

Once we get into situations where multiple computers are connected to each of the switches, then performance will be severely impacted. Not only will the switch have to handle the local traffic, but it will also have to "pass on" the trunk traffic. The trunk of each of the switches is the bottleneck. This is why enterprise networks mostly use Gigabit trunks (for main switch->child switch), and try to minimize (or eliminate) the daisy-chained switch example.