My network design, please look!

[Phokus]

Hey guys, i have a project for a class, can you please take a look at this?

http://web.syr.edu/~iypoon/networkarchitecture.pdf

BTW, all the switches from floors 1 through 10 have 50 nodes connected to it to each switch. The basement switch connects to an opposite building with the exact same network setup. I'm just wondering if the setup will work, and if there is any bottlenecks or anything. Oh yeah, and the bandwidth usage is "average" (there's no WAN connection for people to download mp3's off napster 🙂 )

 

[LordOfAll]

OK here are some fast comments.

1. I don't see why you are agregating the floors at 3 and 8. You have an 8 port 1000Mbit switch you are hardly using. Why not get 11 ports and run each floor to it?

2. Might want to look into using an FDDI backbone to run between floors. They have a ring structure, so there are 2 paths to anywhere.

3. It is hard to say if there would be bottlenecks, since you didn't say where the servers will be.

4. How are you subnetting this?

5. What is the backplane speed of the 4000m units?

 

[Phokus]

Here are the performance stats for the 10/100 switches:
latency: <10 µ (LIFO)
throughput: 4.67 million pps (64-byte packets)
backplane speed: 3.8 Gbps
address table size: 10,000 entries

My project didn't call for me to specific where the servers will be, but i'll just arbitrarily say they're in the basement (so they'll use some of the 8-port gigabit ethernet)...

Also, i'm trying to be as economical as i can, cuz some of my classmates are spending insane ammounts of money on their network design (like 1 million dollars) heh.

Oh yeah, all the computers connected to the switches are going to run at 10 Mb/sec... that's what the project calls for.

As for subnetting... uhm dunno, we didn't cover that in class before 😛

So is my network going to run well?

 

[dirtboy]

Page expired?

 

[Phokus]

Argh... it keeps on expiring... ok moved it to a new location:

network design

 

[jbond]

Most anything works on paper but in real life totally different. From what we see here are ok should be an exceptable network. What about ATM Hub/router on the floors. Running to the same in basement. I am from the old world and the gig is nothing I have had experience with yet. With ATM you can run 165+ with as many runs as ports.

Other wise on way to tell if it works is use it.

 

[spidey07]

You might run into some performance problems with the 56/1 over subscription rate on the F3 and F8 switches. I'm talking about the single 100 BaseT connections to the other 4000s.

For the money I'd use two 16 port gigabit switches (or single HA chassis) with insane amounts of backplane speed in the core and attach gigabit links to each floor from each 16 port gig switch tweaking spanningtree to make the gigswitch the root. (sorry, in my line of work it CAN'T break). Two gig ports would be used to attach the switches together.

If that is cost prohibitive then single gig links to each closet.

If that is still too much then your design should work fine just watch the congestion on the interswitch links between F3 and F8. Bond several 100 BaseT links together to overcome this.

spidey

 

[dirtboy]

I would run sx fiber to each floor. In this setup, it just makes sense. If you had a problem, you'd have to trace too many wires in this setup to determine the failure point.

Here's what you do. Run sx fiber from each floor to two Procurve 6208-SX. Of course, connect the two 6208's together with fiber. Then run a line from that building to the other, which I would assume is fiber? If it is, I could consider dropping HP and going with a modular Cisco fiber switch that you can put in modularly (8 slots) SX fiber, LX fiber, and a proprietary slot used to connect multiple Cisco switches together. I would assume you would be running LX fiber between the buildings.

With &quot;average&quot; bandwidth, this is more then adequate.