Links and Networking

Or is a networking device a router or things that connect you to a network?

i will consider network switches as networking devices as well.

what are the major differences and similarities of network switches and network hubs? which one would be better in different circumstances?

similarity—-both multiple port density of a single connection
difference—hubs are half duplex
-hubs do not break up collission domains
-hubs do not do address learning and initial flooding of interfaces
-hubs do not use mac address tables to ascertain the port to send packets out through.
-hubs do send every packet out every interface every time.

My entire house has cat5e cabling hard wired to every room, but half the rooms are set up with the cabling as phone lines. All the lines set up for phone are spliced together using little white/red clips. Basically what I want to do is take out all of those clips and put RJ-45 jacks on all the cable ends. Then I want to get two networking switches and plug the main phone line into the first one and plug the internet line into the second one. Essentially I want to be able to take any line and either plug it into the internet switch if I want that particular room to have internet or into the phone switch if I want that room to have a phone. I would have to put RJ-45’s on all the lines so that I could have them carry the internet signal. I know that I can get the networking side of this idea to work I’m just not familiar with phone signals and am not sure if this would work. If I absolutely had to then I could decide which rooms I permanently want phone lines in and which I want internet in and just use the red/white clips for those rooms I want phone in but I would much prefer a highly adjustable system like this.

I’ve tried to be as clear as possible but I’m aware that its a somewhat strange concept and I haven’t been able to find anything on the internet about it. Just to clarify a little but though here are the main things I need to know. Any other advice or information would be a great help. Also if you would like any further clarification feel free to ask me questions.

1.) Can you use a standard networking switch to carry phone line data instead of internet data
2.) Can I wire my main phone in line with an RJ-45 plug (ignoring plug slots that there aren’t wires for) or should I just put an RJ-11 on it and plug that into the switch.

your networking cables can carry telephone data for example voip is one example but you would be able to route your telephone signal to all the jacks but all the jacks would need to be changed and you would have to figure out how to convert that signal

I am working at a new office where we have an AOPEN AOW 216 Network switch. It was quite earlier but now makes a noise randomly that sounds like a car engine reeving up. I am wondering if it has a fan in it and something is going wrong with the fan…or if this is just a normal noise these things make.

this model does have a fan.

I need help. I need to share six computers with a printer. I also have to Network the printer so everyone using a computer can access the printer. How is this done?

With 6 users, installing the printer on one machine and expecting it to handle all the work, plus be a workstation is a bit much.

You need to set up the printer on a print server.
Here are some examples

http://www.cdw.com/shop/search/results.aspx?wclss=PA&SortBy=TopSellers

Good Luck

I am working on a project to build a social networking web site from scratch using oracle database and an application server like Tomcat. Can any one with prior experience let me know what is the total cost I can expect to incur in execution of this project? Assumption is that this website will be able to support several million users.
What is the annual cost of oracle database?

I have a few experience in social network developments.
Before all, be aware that very few are successful: 99.9% of attempts go down the drain within a year.
Why? Because they are not ADVERTISED by any other means than the web. In other words, if they are not advertised using other medias (tV, radio, papers etc), they do not survive.
So, what is the cost?
A relatively complex social network will cost a few grands to set-up (expect 3-6k minimum for a "decent" site).
To the cost of development, of course, you have to add the domain and the server(s). At start, this is nearly "free": for $100, you have all you need.
Once set-up and fully tested, it needs to be promoted.
Here come the costs. It depends of the type of network you do. A SN for dentists, for example, will need to be advertised in all the specialised magazines for dentists, and that is not cheap.
You want a Facebook? You need a MASSIVE start-up for a few months, on TV and many other medias.
Fail that, and it simply "won’t start".
But…
It HAS started, and you get a few thousands members…
The cost of your server will increase dramatically: you need dedicated server at start, and, once you reach the millions, a server FARM (more than one server).
It becomes worldwide? You need servers in different countries… and in different languages!
That means a TEAM of coders, available 24/7, to respond to the demand.
That, also, means powerful BANDWIDTH, a very expensive requirement. A SN like second-life pays several $1000’s PER DAY for their bandwidth… But with 35,000 concurrent visitors a day, each one paying a few $… They are covered!

SN like Y!A are successful, because supported by big, large, powerful multinational companies.

In the end, a successful SN can only survice if it becomes a heavy business, with staff, infrastructure, admin and legal department.

That is a totally different ball game as making your own, little "Y!A" on your local server.

Successful websites (SN or not), are supported by serious money and professional staff.
Or they are not successful and go to oblivion a few months after birth.

Several million users? Between 2 and 5 million $ of investment. And 25% of turnover a year profit.

I have subscribe Reliance broadband. It is working on one computer in a time even I use INTEX networking switch. Later I was used MTNL connection it was work properly with this switch. Any one can help me?

The problem you are having points to bad or wrong configuration.
If you can send a proper detail of what exactly is going wrong i might be able to support you.

Two computers, linked via network. One of their hard drives crashed–computer still turns on, but won’t go past start up screens, can I turn it on and use the other one to go through my network to retrieve a needed file, or do I need to buy a USB hard drive enclosure to do the transfer?

Yes – USB hard drive enclosure.
If the busted PC won’t start up then it won’t be running any network services so will not be visible.

I am needing a networking switch for a cluster supercomputer I am building. I need a networking switch, that can transfer a lot of data at once, but I am confused about witch one to get. What is the difference between 10/100/1000mb/s vs 10/100 + 1000mb/s. I would also would like to know what support for a jumbo frame means. Here are the two switches I am debating between, and i would like to know which one would perform best, and how much difference it would make.

TRENDnet TEG-S224 10/100Mbps Ports + 1000Mbps Uplinks Copper Gigabit Switch 24 x 10/100Mbps Auto-negotiation MDIX Fast Ethernet Ports 2 x 10/100/1000Mbps Auto-negotiation, Auto-MDIX Gigabit Ports 8K MAC Address Table 2.5MB per device Buff

NETGEAR GS116 10/100/1000Mbps ProSafe Gigabit Desktop Switch with Jumbo Frame Support 16 x RJ45 512 Kbytes per port Buffer Memory

The Trendnet has 24 ports that will transmit at a max speed of 100mbps, plus two other ports that transmit at 1000mbps. These two ports are designed for connecting to other switches.

The netgear has 16 ports able to transmit at 1000mbps, so data would be transferred between each host faster with the netgear.

However, if you want super fast transfer speeds you need to go for one of the high end devices from Cisco or Juniper, which can no acheive 40Gbps throughput.

Is it better to have multiple CAT6 cable runs from one 24-port network switch going directly to computers/components or use an 8-port switch next to my router with CAT6 cable runs going to multiple 4-port desktop switches and my computers/components hooked up to the desktop switches? Is there a speed advantage one way over the other? Is there a speed advantage to plugging components with high-bandwidth requirements directly into my router with CAT6 cable instead of going through a switch to the router’s switch? Will components on separate switches show up as on the same network still? I have a Netgear WNDR3700 router and plenty of CAT6 cable (1000’) and keystone jacks. I have an unfinished basement ATM so it’s not a problem to make the cable runs. I did a little looking on the web but could not find straightforward answers to my questions and I do not know the intricacies of networking. Thanks in advance!

if you are thinking about a system in your basement, i’m guessing you will only have a few devices, so it makes no difference in network efficiency to use either setup… if you had multiple devices all over the place (on the order of 25 to 50, or more) having multiple switches makes more sense.

all the devices on a particular switch are at the same level with each other, so the overhead is minimal, therefore the data thruput between those devices is fastest, but if you need to connect between two devices located on separate switches there needs to be a little more info added to the data header on each packet to keep track of where the data originated from, therefore, adding time to the overall time it takes to move the data.

For instance, if you had a workplace that had an accounting office with 10 devices, and a sales office with 10 devices… giving each office it’s own switch makes transfer of info between the devices within that particular office a faster overall throughput… while still allowing the occasional transfer of info between both offices.

Each switch creates an isolated system… not a sub-net, but something similar to a sub-net at a hardware level.