Everyone Loves an Awesome Network Diagram

This is my last post as an ambassador. I've had a ton of fun and appreciate everyone’s feedback and opinion. Now let’s talk about some network diagrams!

No network should be without a good visual representation of the overall design and layout. When push comes to shove any documentation is better than no documentation. For me an awesome network topology is worthy of printing it out on a plotter and handing it on my cube walls. But what techniques can you use to build great visual representations of your network that are both clean and provide adequate details?

Here are several of the techniques I use:

  1. Basic shapes for equipment. To me stencils can get messy where a plan square is simple to organize the layout of connections. I avoid rack view stencils and real images unless Im doing an elevation diagram.
  2. Separate the network into multiple pages. I usually build a separate layer two and layer three diagrams and I will also usually keep network and servers/services in different workbooks all together. Depending on the complexity I will also separate WAN, VPN services etc into their own page. This keeps each page clean and simple.

          If you get annoyed with jumping back and forth between diagrams or tabs then you can use layers. To me this adds more complex and doesn’t always work well. That could just be me though.

  1. Organize the layout in a way that can quickly represent the flow of traffic but always try to avoid crossing connections. For physical cabling and connections I like to keep lines running horizontal and vertical and never run at an angle. Angled and curved lines for me represent logical connections.

So, what are the techniques you have used?

What has worked for you in the past and what do you try to avoid?

  • Excellent write up! Separation of your your layers, WAN, LAN, etc. will only make it easier to find what you do need when that push comes to shoving back at you!

  • In fact, we have just completed an overhaul on one of our data centres and I've just started the sketchup drawing and map design to reflect it.  We have had intelligent PDU's this time which report on power usage from each socket above the cabs.  So I've added those in and the UPS and air-con monitors

    newdc_phase1.jpg

  • Completely agree. Yes it does take longer to create a room map that drills to a cab map, that drills to a server map.  I guarantee if you combine the time spent designing it massively exceed the time your collegues and other departments will save by having that view of your organisation and simple problem locating.  I've noticed a great improvement with getting new staff up to speed, who are trying to take all the infrastructure knowledge on board, they have even commented on how this made life easier.

  • sorry about the delay James.  It appears sketchup has been bought from Google and the older version of the software points to the old models site.

    Not to worry, all you have to do is go to  https://3dwarehouse.sketchup.com/?hl=en  and it will take you straight to the correct address to search the models database and download any that you want.  We are simply bypassing the app to get there, this way.  nice spotting

  • I love diagrams/pictures.... helps tremendously .... I'd be lost without Visio and my whitebaord to map things out..... the mpre detail the better.

Thwack - Symbolize TM, R, and C