SiCotty

Si,

Don't forget that the stuff from PC world looks cheap but a lot of manufacturers offer very nice discounts to the educational industry. This can but about 50% of the list price of equipment. You can get a 48 port 10/100 switch with 2 gige uplinks with all the bells and whistles including 802.1x port based authentication so unauthorised equipment can not attach to the network. 802.1x should be in a service pack soon on windows as it's most common use is wireless networks. All this for about £1500.

Oh and fixed config 10/100/1000 switches are not that much more expensive than a 10/100 switch.

Si

[Edited by SiCotty - 10/7/2002 7:38:54 AM]

super_si

tis in my Uni notes.

same as ethernet hehehe

Just read my notes

Si

ps wheres its gone wrong

[Edited by super_si - 10/7/2002 10:50:03 AM]

super_si

lol
every bibliography will reference this forum .

Thanks everyone

Puff - Some one added that education gets a discount in this area So money not an issue if i write this in my report

[Edited by super_si - 10/7/2002 11:21:24 AM]

SiCotty

Si,

A good idea with this is to include a few solutions to give the customer some choice. You could have a budget solution, midrange and top. You need to detail the advantages of going for a top over a midrange though.

Having been at Uni myself and done this sort of stuff the most important part is to look at the percentage it counts towards your total mark compared to all the effort you could put into it. You could do a lot for this but then you could do just enough to get a good mark but not excellent. I have seen a lot of people put a lot of work into an assignment that is worth 2% of their final mark. If it's a written exam at the end this is like getting one question right or wrong.

Si


[Edited by SiCotty - 10/7/2002 3:00:36 PM]

super_si

Im just doing an assignment on networking.

Im thinking using the above for the LAN. How expensive is the technology to use?

And can it be justified over using 100Base-T

Cheers

Si

dsmith

In specific place.

1) LAN Backbones (links between switches etc.)
2) Server connections - but only where its required by genuine requirement and the server actually has the disk etc to maintain greater than 100mb/s Full Duplex. throughput.

Cost is not huge these days. I would always tend to use fibre which can push the cost up in small installations but it is possible to run over copper and use current cabling.

Outside of specialist situations calling for very high local bandiwdth - I haven't seen a need for it on Luser connections in a general Desktop LAN environment.

Deano

super_si

In the 20 room im thinking using 2 hubs and 10 pc's per hub on a bus set up!
Then using remainer as server room localizing the servers for security purpose's.

Nicks said wireless lan :S

Si

dsmith

2 Key words for Network Requriements:-

Volumetrics. (How much data, how often)
Resilience (How important is it to survive a single component failure)

You can design a solution from a few hundred to several hundred thousand depending on the answers (and the budget )

Deano

suba

lease-line using VPN? or point-to-point wirelss microwave?

cost wise, gigabit ethernet is not gonna be on desktop for a while. mostly being used on router/switch.

super_si

Im still new to networks there the schematics then the problem is..

As the IT manager for People are Precious„· you have been asked to design a Network for your new York branch. The layout of the sites is as shown below. The Main purpose of the network is to deliver basic skills, Microsoft Office Training as well as basic web page design and Internet classes. The Network is also connected to the Internet. The students need to be able to log on to any of the workstations and send e-mail.

Multimedia will only be used on individual local machines and therefore need not be a part of your design. However, it may be introduced in the future and you should propose options to ensure that your network does not need major upgrade for the next 5 years. The overall cost of your network is an important factor in the design. You must be prepared to fully justify the cost of expensive components or services.


Im working room at a time. Depending on the location its either ADSL or ISDN30 for the internet! as far as ive got!
and


Si

dsmith

"that your network does not need major upgrade for the next 5 years."

**** me - someone get me that crystal ball. Maybe it will give me the lottery numbers and the movement of the FTSE.

Most people haven't got a clue as to their actual requirement NOW let alone in 5 years

Deano

super_si

hence me hehehe.

Im thinking 3 separate lans. Im using the 20 pc place as the main server place. Then the other two places connect to there. How i dunno.
Dunno what lan technologies or OS yet either

Si

dsmith

Si

3 miles is an interesting distance. Lots of possibilities. You might want to consider Point-to-point Lan Extension Services e.g. LES 10 from BT.

But you're down to small bandwidths (10 mb/s) to keep costs reasonable so you might want some local file/print servers....

Deano

super_si

Thanks mate much appreciated!

at the main bit id need.... Print and file server.
maybe a gateway/dedicated firewall pc.

Then do you think print server and file server local? is there away 3 localised file servers can talk to each other?

Im not upon this but would this be roaming profile?

Im thinking 2k server and 2k pro stations

Simon

super_si

Thanks

What Lan config to use.

I was thinking maybe a hub at the end of each row to minimize network traffic

ChrisB

Presence of existing cable ducts or overhead cant's etc on the external links?

Potential to run fibre ie ability to dig / run cables etc?

A hub on each row won't minimise traffic as they will just broadcast. I'd just whack a switch in for the lot.

chiark

Just a thought, but to get the best marks in this assignment shouldn't you be replaying back what the lecturer / marker wants to hear?

I've just got this feeling if you go back and write up the latest and greatest advice there's a good chance that the lecturer won't know what you're on about and you could end up falling on your ****.

What stuff have they actually taught you for this sort of thing?

Hope you can see where I'm coming from. THis might be the best possible answer, but your lecturer may not think so...

super_si

I see what you mean

http://www.koncept-developments.com/network.doc

Theres a spec thanks
Si

super_si

Chris b - i can do anything i want.

Dig the 800m trench and join the 2 buildings up?!?!

Si

ChrisB

Well, fibre will be quicker and more secure than wireless, even if you only go for 100FX transcievers / media convertors. It's also under your own control for upgrades and maintainence.

Look for a switch that will take a fibre module. These are pretty cheap...

http://www.hp.com/rnd/products/switc...12/summary.htm

The two open slots can support 100FX fibre or Gigabit on copper.

chiark

For security, go for dark fibre. If 800m, you don't need repeaters, either. We use it for our DR stuff and boy its good.

BTW, mention that you're putting in channels that will take many many more cables. That way, to run another fibre connection will cost pennies (relatively ) as you just chuck a friendly mole down the hole with a length of fibre up his ****.

Nick.

super_si

lol hehe

Im having a server room at every location.

So 1 file server, 1 print server. 1 Gatewaty pc. Any rough server specs? Anything will do just ram cpu n scsi.

Then Run fibre from location 1(20pcsroom) to the location2(30pcs)
At the end of the fibre i use ........switch? ?!?!?!
off to the lans, other to the server room.

Then use the BT solution above for the 3mile gap.

Depending on location ADSL or ISDN.
Am i thinking right here??

Ignore wireless lan not using that. All cabling

Si

dsmith

Lets not start on moles. Spent several hours trying to get one at the weekend but with a lot less success than Tiggs or Dave T-S

Si - I'd go for some bleeding edge "Dense Wave Division Multiplexors" for your fibre. Should be able to get a bit of e-mail working then

Deano

dsmith

Si

Serioulsy - I'd go central File and Mail servers. Local print servers. Single Internet Gateway. (ADSL if thats suffucient bandwidth) with a firewall.

Deano

ChrisB

Gateway PC? What does that do?

I'd write about how you'd get a quote on the LES first before making a final choice of the link. You could see a nice cost saving using 802.11 bridging.

super_si

A rough understanding!

Si

ChrisB

Deano's idea sounds good.

As an alternative to the local printer servers running W2000, how about a Print Server Appliance like the HP JetDirect 4200? Lot easy to manage and less to go wrong.

http://pandi.itrc.hp.com/busprod/ove...idebarLayId=63

super_si

Yeah

So ,
Location 1
central File
Mail server/s?
Local print server/s?
Internet Gateway.

Location 2
Print Server

Location 3
Print server

What type on Lan? Im thinking either Bus or ethernet

Si

dsmith

Si - it was all going so well

WTF is a Bus LAN ?. LAN will be Switched Ethernet.

Puff The Magic Wagon!

iTrader: (2)

Central servers

Don't forget what is the role of your network in planning the layout.

It's to be used for training, isn't it? With the ability for mail & Internet access.

Presume you'll be using IP? What is the domain structure? 1 domain or more? A DNS server, DHCP, a PDC and a BDC. Mail server and probably a proxy server as well as at least one webserver (poss more for differing server types (IIS, Apache etc). You'll need a firewall and dmz. That's in addition to any pure file servers. However, you won't need to replicate the whole lot in each building.

Then looking at something like KVM switches for the w/stations etc (teacher can takeover or view what's happening or demonstrate his own).

Just my few ps worth