Company network design

dragcemac · ‎08-18-2014

Hi guys,

I am a student from Belgrade and currently i am working on company network implementation, and i have few problems.

1. I have to make company regional center which looks like this:

- Company has two buildings in one town:

- First building has four departments (finance, development, IT, marketing) and server farm with five servers (one for each department and one shared server)

- Second building also has that four departments and only one server (backup server)

Requests:

a. Each department should see its server without routing

b. All other traffic should go through router

How can i achieve this?

I have sent you screenshot of my network with backbone and one city connected (BGD), with redundant routers on backbone and with its two locations.

Also, i am not sure if i need separate router for each location.

2. I need to add main office and branch offices to Houston router:

-Main office should be connected to backbone and it should contain another router which is connected to branch offices via serial links.

Requests:

a. How should i design this?

Thank you anyway,

Regards,

Dragan

Leo Laohoo · ‎08-18-2014

I am a student from Belgrade and currently i am working on company network implementation, and i have few problems.

Dragan,

You need to rephrase to something like this: I am a student of Belgrade and I am currently too lazy to do my homework. Can you please provide a 20000 word summarization by end of this week?

1. I have to make company regional center which looks like this:
- Company has two buildings in one town:
 - First building has four departments (finance, development, IT, marketing) and server farm with five servers (one for each department and one shared server)
 - Second building also has that four departments and only one server (backup server)
 
Requests:
a. Each department should see its server without routing
b. All other traffic should go through router
 
How can i achieve this?

Give us your idea of how you want this implement this and we'll help GUIDE or STEER you into the right direction.

2. I need to add main office and branch offices to Houston router:
-Main office should be connected to backbone and it should contain another router which is connected to branch offices via serial links.
Requests:
a. How should i design this?

Same thing. Share with us how YOU would want to do.

PS: If you are really, really desperate for an answer, send me a PM. I will be happy to send you a full-blown design document (including implementation documentation from CPoC) for a small cost of 500 Bitcoins.

dragcemac · ‎08-19-2014

Hello,

It is my university project, but actually, i am not that lazy, i would like to do it on my own, but i am not 100% sure how to do that.

Ok then, i will tell you my ideas and i hope you will tell me if it is right.

1. As you can see in the attached picture i have built backbone (4 routers named NewYork1, NewYork2 (i needed router redundancy for NewYork), Houston and LA) and New York network, which should be one OSPF area.

There are two company buildings in NY on separate locations. Both buildings have 4 departments - floors (finance, marketing, development and IT).

First building structure:

- On each floor i have one department and in the basement is the company data-center (with 4 servers for each department and one shared server) and DMZ.

Second building structure:

- On each floor i have one department and in the basement is the backup server.

Requests for NY:

a. Each department should access its server without routing.

My solution:

- As you can se on the pic i attached, i put a router in each location (routers named NewYork-Location1 and NewYork-Location2), in order to divide the network into two LANs.

- Every department, servers room and DMZ has its switch so i can add more devices.

a. Each department should access its server without routing.

- As i know this is possible only on location 1 if i configure VLANs (one VLAN for department and dedicated server). Traffic from location 2 departments to dedicated routers must go through router. Is there some other way to achieve this? can vlan be made on remote sites?

Leo Laohoo · ‎08-20-2014

Ok then, i will tell you my ideas and i hope you will tell me if it is right.

You encourage me to help you but I won't help you to get your answer. I'll STEER and point out to you where you are going to the wrong direction.

As i know this is possible only on location 1 if i configure VLANs (one VLAN for department and dedicated server). Traffic from location 2 departments to dedicated routers must go through router. Is there some other way to achieve this? can vlan be made on remote sites?

The answer is a yes and/or a no. But you know what's missing in your diagram? What is the link between Location 1 and Location 2. Answer me that and I'll continue on.

dragcemac · ‎08-20-2014

Thanks for your answer.

I figured that my topology is not good on location 1, because VLANs can not be configured if all switches are connected to the router separately. I attached changed topology.

Link between location 1 and location 2 is FastEthernet cross-over cable...

Now, is this usual to connect routers to backbone, or i should connect switches?

Thanks...

Leo Laohoo · ‎08-20-2014

Link between location 1 and location 2 is FastEthernet cross-over cable

So the link between location 1 and location 2 is a point-to-point link. There's no WAN cloud in between.

As i know this is possible only on location 1 if i configure VLANs (one VLAN for department and dedicated server). Traffic from location 2 departments to dedicated routers must go through router. Is there some other way to achieve this? can vlan be made on remote sites?

If you don't want to do routing between the two sites and sites are connected on a point-to-point link, then my fundamental question to you is: Why do you have two routers?

dragcemac · ‎08-21-2014

Yep, there is no WAN in between.

I am not experienced, and i didn't know if it is usual to connect to two offices in one city directly (via switches). It seemed too far for me, but now i researched a bit, and found that it is usual to connect them that way but due to bigger distances i have to use fiber cable.

Thanks for pointing me to the routers.

I will connect switches instead and directly connect them with fiber optics, because of distance, so these two branch offices will be in the same LAN...

Now, it is interesting to me, what is more common in practice, connecting routers or switches to the network backbone?

Maybe, i will need some more guidelines about network design, so i will be free to contact you. :)

Thank you very much.

Leo Laohoo · ‎08-21-2014

what is more common in practice, connecting routers or switches to the network backbone?

You will need routers to do inter-VLAN routing. This is one of the most common things to do. Another thing is a point-to-point link with different subnets. You need a router to do that.

Your design is totally different. You stated you want same-department-communciations. So this is why I'm asking why you have routers when the links are point-to-point and you stated you don't want to do routing.

Very weird network assignment you have.