Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [network-design]

110 questions
37
votes
8 answers

When/why to start subnetting a network?

Under what conditions does one start to consider subnetting a network? I'm looking for a few general rules of thumb, or triggers based on measurable metrics that make subnetting something that should be considered.
Adam Davis
  • 5,446
  • 3
  • 37
  • 52
22
votes
4 answers

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 the Linux server netmasks from 255.255.255.0 to…
ewwhite
  • 197,159
  • 92
  • 443
  • 809
20
votes
16 answers

Network Diagramming Software, FREE or Open-Source

There are lots of Network Diagramming Software, but it doesn't satisfies me. In a reason that it's not free. I need a Network Diagramming Software that can design both Logical and Physical, and it should be FREE or Open-Source. Anybody…
Nathaniel Varona
  • 758
  • 2
  • 9
  • 22
16
votes
2 answers

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 availability, because it will have to support about 15k…
user3081239
  • 171
  • 1
  • 6
16
votes
6 answers

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 more background. The company already operates a…
Calvin Froedge
  • 538
  • 1
  • 6
  • 16
13
votes
1 answer

"Hostile" network in the company - please comment on a security setup

I have a little specific problem here that I want (need) to solve in a satisfactory way. My company has multiple (IPv4) networks that are controlled by our router sitting in the middle. Typical smaller shop setup. There is now one additional network…
TomTom
  • 51,649
  • 7
  • 54
  • 136
10
votes
2 answers

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 options for this design, including looped layer 2…
S.C.
  • 143
  • 1
  • 2
  • 6
10
votes
7 answers

Are VLANs necessary for my environment?

I'm the new network manager for a school. I've inherited an environment made up of several Windows servers, about 100 Windows clients, 10 printers, 1 Cisco router, 6 Cisco switches, and 1 HP switch. Also, we're using VoIP. There are four floors in…
kleefaj
  • 359
  • 4
  • 15
9
votes
1 answer

Are VLan's used to split my switch into segments?

I'm trying to plan for the following Small Office network setup: 3x Internet connections Things connected to the port in each colour can only get routed through their corresponding internet port. for example: Internet 1 (RED) - ports 4, 6, 8, 10…
Pure.Krome
  • 6,508
  • 18
  • 73
  • 87
8
votes
7 answers

Should Cat6 cables be used for servers ('important hosts') rather than Cat5-E?

Wouldn't you want your crucial hosts being served with the most signal-reliable/improved method of connectivity? Gig Switch<->Cat5E<->Server? or Gig Switch<->Cat6<->Server? My understanding about Cat6 is that it delivers improved signaling between…
l0c0b0x
  • 11,867
  • 7
  • 47
  • 76
6
votes
1 answer

Connect AWS route53 domain name with K8s LoadBalancer Service

What I'm trying to do Create a Kubernetes environment with a single API gateway service that is mapped to a DNS address. What I have done: 1) I went to AWS Route53 service and created a subdomain. 2) That subdomain seems to have a static IP. I…
Roman
  • 163
  • 1
  • 6
6
votes
1 answer

Best way to share a network between joint venture partners

BACKGROUND Our company has recently entered into a Joint Venture (JV) in which we are the managing partner. As the managing partner, we are responsible for the network setup and support. This JV is only for one job and neither partner wants the…
Scott Lundberg
  • 2,364
  • 2
  • 14
  • 22
6
votes
1 answer

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 able to do this, with the hardware already at…
abstrask
  • 1,688
  • 14
  • 24
6
votes
3 answers

Where should I setup a staging environment in Amazon VPC? And testing?

I setup the production environment for my service in an Amazon VPC in Oregon: 2 availability zones 1 public subnet (including bastion, nat, and ELBs) and 3 private subnets (database, web servers and configuration/supervision) in each availability…
MiniQuark
  • 3,875
  • 2
  • 21
  • 23
6
votes
4 answers

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 access head office or each other. Suboffices are at…
Vladislav Rastrusny
  • 2,671
  • 12
  • 42
  • 56
1
2 3 4 5 6 7 8