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14
votes
2answers
291 views

Campus Network Design - Firewalls

I am designing a campus network, and the design looks like this: LINX is The London Internet Exchange and JANET is Joint Academic Network. My goal is an almost-fully redundant with high ...
2
votes
1answer
107 views

“Full acces”s vs “only web access” to a network [closed]

I'm having trouble with some of the wording used by my lecturer on a exercise he gave us. The goal of the exercise is to design a network for three "labs" in our University: A general purpose lab ...
0
votes
0answers
42 views

Homogeneous cluster versus heterogeneous cluster

By homogeneous cluster I mean a cluster of nodes that all have the same services running. I am trying to set up a cluster of nodes that offer a set of services. The cluster can respond to HTTPS ...
0
votes
1answer
117 views

Why use a converged network design in Hyper-V?

I am reorienting myself to Hyper-V in its Windows Server 2012 R2 incarnation and have spent a fair bit of time reading Microsoft's Designing Your Cloud Infrastructure documentation. I am in the SME ...
1
vote
1answer
125 views

how can I present a network diagram on the building that has 3 floors

How can I present a network diagram on the building that has 3 floors? The requirements are to separate the users in one LAN according to their department, what confuses me is on the second and on the ...
2
votes
3answers
180 views

DHCP Relay vs Multi-Homed DHCP Server

I'm sketching out a new network topology and I'm unsure of how to solve the issue of DHCP between two VLANs. 10.50.2.0/23 will hold the majority of our users, corporate wifi, printers etc. ...
1
vote
1answer
232 views

LAN Redundancy - NIC, Cables + Switch?

I'm trying to move to a HA solution and would like to understand what hardware is required to have redundancy in the NICs, switch and cables. The diagrams below show how I envisage a non-redundant ...
0
votes
2answers
63 views

Is it possible to have subnets for hosts connected to a switch? [closed]

re-EDIT I can not provide my attempts and what wen't wrong, because I am only doing the design and not actually implementing right now. Although the goal of this structure is a school network. I ...
4
votes
1answer
335 views

Designing segmented LAN with fairly shared hi-speed internet access on a tight budget

With another member of the owners' association, I've been tasked with designing and setting up shared, hi-speed, internet access, for our apartment building. We have very little budget and hope to be ...
0
votes
2answers
345 views

Network design vm virtualization in small office [closed]

I just recently bought a 16gb ram, Intel i7 quad core Mac mini to be used as the central point of entry to my network and am looking for advice on how to design a network suitable for a small office. ...
-1
votes
1answer
71 views

Simulate two domains on one machine to support work/home isolation [closed]

Problem statement: How can I support isolation of identities on a signle in-home network that supports both personal and business resources? I know the Windows NT servers have plenty of methods of ...
-3
votes
2answers
112 views

Designing a network architecture [closed]

I am building a network architecture from scratch for a small company (~20 users). I plan to use the "classical" model: -A server that contains Active Directory -A server that contains Exchange server ...
20
votes
4answers
1k views

Customer site is out of IP addresses, they want to go from /24 to /12 netmask… Bad idea?

One of my client sites called to ask me to change the subnet masks of the Linux servers I manage there while they re-IP/change the netmask of their network based on a 10.0.0.x scheme. "Can you change ...
1
vote
1answer
373 views

Can I split static IP range between 2 routers, with an upstream switch?

My ISP provides static IP range x.y.z.112 to 127. At the moment, my existing router is configured with ROUTER A (existing settings) WAN IP: x.y.z.114 Mask: x.y.z.240 Gateway: x.y.z.113 I want to ...
1
vote
1answer
109 views

How Does EoR Design Work with Multi-tiered Data Center Topology

I just did a ton of reading about the different multi-tier network topology options as outlined by Cisco, and now that I'm looking at the physical options (End of Row (EoR) vs Top of Rack(ToR)), I ...
8
votes
2answers
1k views

Can someone tell me what is meant by “layer 2 adjacency”?

I am working on designing the logical topology for a new data center rollout. I'm reading "Cisco Data Center Infrastructure 2.5 Design Guide" and going with the multi-tier design. There are multiple ...
-3
votes
1answer
74 views

Design network with redundancy [closed]

I need to build a redundant solution for my company. The idea is to have internet provided by two different ISP in order that if one link goes down the other link will take over. This should be done ...
0
votes
1answer
83 views

Where to begin with IPv6 [closed]

I am fairly familiar with setting-up IPv4 networks for bigger server configurations, only now I wanted to start familiarizing myself with doing the same for IPv6. I have been Googling for the second ...
2
votes
2answers
91 views

A tricky converged VoIP design

A client (roughly 30 people) wants to replace their existing analog phone system with VoIP. However: they have dual Ethernet drops to some desks, but not all their (recently purchased) router does ...
2
votes
3answers
259 views

Designing a persistent asynchronous TCP protocol

I have got a collection of web sites that need to send time-sensitive messages to host machines all over my metro area, each on its own generally dynamic IP. Until now, I have been doing this the way ...
5
votes
1answer
197 views

In what scenarios would a VLAN not align 1:1 with a subnet?

Under what scenarios would a VLAN not align with a subnet. I've been told that genearlly they always go 1 to 1. What are some examples or scenarios, and reasons for anything besides that, and for what ...
6
votes
4answers
2k views

Network design help needed (main office + branch offices + central server)

I have a head office and a number of suboffices. Both head office and suboffices need to access some corporate server, which is physically in the head office. But suboffices should not be able to ...
0
votes
1answer
108 views

place of domain controller and exchange in network

I am searching for the best practice of securely deploying windows domain controller and exchange in a small-medium size network (50+ users, 20+ virtual servers). The topology is single firewall ...
0
votes
3answers
124 views

vlan segmentation for developers and version control servers [closed]

Suppose there are 50 developers who access the server hosting the version control system (subversion for example). Would you put developers and svn server to same vlan (since this communication is ...
3
votes
3answers
328 views

How best to decouple a web service from its publicly-available domain names?

I'm trying to design a system that allows for multiple public endpoints that funnel into a single web service. The web service must be able to determine which endpoint was the intended destination of ...
0
votes
1answer
136 views

VPN tunnel, different subnet for all users?

We have a VPN setup for each of our three branches. I understand that each router should be on a different subnet to the router that it's connecting to, but do the routers need to be on a different ...
2
votes
2answers
4k views

Routing between subnets with one router?

I have a Draytek Vigor 2820 which is connected to three gigabit Netgear Layer 2 switches. Currently the network is fairly simple, 192.168.1.0/24. One the network I have 7 servers, around 50 ...
2
votes
1answer
153 views

Using VLANs that are routed together?

I have a quick question that's bugging me the more I read about VLANs. So far I understand that they are useful for dividing the network into sub-sections, but if you route them together does that ...
2
votes
1answer
179 views

Need guidance on network design in multi-building campus

How can we create a secured, segmented network among multiple buildings when all the data has to go through a single cable? Background: I work for a non-profit organization that has 5 buildings on ...
3
votes
1answer
323 views

What are some good resources on scalable network design?

We currently host all of our clients in one datacenter. We would like to expand to two new datacenters by the end of the year. My job is to figure out how to extend our current network to those two ...
13
votes
6answers
1k views

Building a Linux Network for Our Company - Where Do I Start?

This is going to be a somewhat loaded question. I am programming in a company that has been around since 1962. A lot of things, especially computer / network stuff, is very dated. Let me give a bit ...
2
votes
1answer
515 views

SAN design: File & Block level access?

The short question: can I share file and block level traffic on the same SAN? Perhaps more importantly, should I? The gory details are below... I'm hopefully putting the finishing touches on a new ...
1
vote
1answer
971 views

How do I dynamically hand out dhcp and automatically put specific pc's on a specified vlan?

I am really stumped on a new infrastructure design. Let me explain our scenario. I have been tasked with the complete rebuild of our network infrastructure. The requirements are isolation of our ...
1
vote
2answers
85 views

protocol based switching / routing?

I have run into a snag with a network design project I'm working on. Our internal network is 192.168.1.x. We have two gateways out of our network, #1 is .20 and #2 is .52. Normally you could pick and ...
2
votes
2answers
511 views

Best Practice: bind, dhcpd, mysql, httpd, etc running on KVM Host?

With respect to "Best Practice" when it comes to virtualization, is it advisable to run services such as bind and / or dhcpd on a KVM host or should these services be run from a guest machine? How ...
-2
votes
2answers
89 views

Given three dedicated servers how do I implement a development cycle?

I am a beginner to server administration and network design. Following is the requirement: I have three dedicated servers. These three servers need to accomplish following: There is a master DB ...
3
votes
4answers
388 views

Network setup (is there any penalty for having multiple switches)

My expertise in networking are limited thus I'd be grateful for your opinion on the following. We will soon be moving into a new office, the question now is how to best rig up the network. To ...
0
votes
6answers
413 views

how i can write a professional documentaion for big network

I design a big network and i want to document my design in documentation . all thing swhitch, router, server and ip address ........ and i want to simulate it and draw it if anyone have a sample of ...
2
votes
3answers
97 views

How to design the infrastructure for an application serving USA and Canada?

I am developing a service that will be applicable for both Americans and Canadians, the data collected and stored are not legally allowed to cross the borders...which is new to my knowledge. So what ...
1
vote
5answers
3k views

How do I separate my network into different subnets?

I appolgize in advance for any elementry questions, as it has been a LONG time since college and I had hoped to never subnet again... :) I want to subnet a 192.168.1.x with 8 segments. Each will not ...
1
vote
1answer
541 views

VLAN Design - adding into existing infrastructure

I'm planning a network design "upgrade" so to speak to utilise VLANs across the campus, and as such trying to figure out and research the best VLAN solution for our network of around 300 machines. ...
8
votes
7answers
2k views

Are VLANs necessary for my environment?

Greetings. I'm the new network manager for a school. I've inherited an environment made up of several Windows servers, about 100 Windows clients, ten printers, one Cisco router, six Cisco switches, ...
2
votes
2answers
88 views

Where can I get information about requirements for a company's network design for eligibility for government contracts?

That is, can you refer me to sources of information or else just shoot off a quick guideline list of government (security and other) requirements to enable a hypothetical architectural firm to be ...
2
votes
3answers
524 views

Advice for outdoor wifi hardware and topology

I haven't setup any wifi networks other than an access point or two at any single location, so I'd like advice on how to setup an outdoor/weatherproof network in an area approximately 150 feet by 200 ...
4
votes
5answers
885 views

Tips and Suggestions IP Address Re-Addressing?

My ever evolving and expanding local area network is currently using a class-C address. My network consists of multiple subnets depending on site/location. 192.168.1.x is site HQ 192.168.5.x is ...
2
votes
2answers
754 views

Domino to Exchange 2007 (or 2010) Design Concerns?

Today we got the executive green light to proceed with changing from a Domino platform to Exchange. The business prefers Exchange for a messaging platform. (even though IMO IBM Domino is fine - if it ...
1
vote
2answers
3k views

LAN Design Question with HP Procurve

HP Procurve 2510G-24 x 2 Port (For Servers) and 2 x HP Procurve 2510-48 Port 10/100 (For Desktops). Topology is like : Patching is terminated on 2nd floor and the servers are located on the 1st ...
0
votes
2answers
68 views

best connection suggestions or best practices for multi site data pull, expert advice needed

i will be having a NAS box that will be receiving data from 20 sites in 20 cities. the computers will be sending about 500MB a night from each site. What are the requirements for equipment hardware ...
2
votes
2answers
98 views

Web application design in case of several sub-applications

I'm currently in an early design stage for a large scale web application which will definitely be hosted on a large farm of web servers. Now, I'm trying to decide whether I want the whole site to be a ...
0
votes
2answers
480 views

network design for sql server

Guys I would like to ask how do you all design networks for sql server deployments I would also like to hear the reasoning on why you designed it the way you did? I'm getting ready to implement some ...