Tool to draw Network Topology Map

[juergen.fischer]

Dear all,

we have several small branch officies with up to 10 Switches each.

I'm looking for a cheap (better free) software that can do the following.

- Discover the Switches

- Draw a map with the information from CDP to see how the switches are physically connected / linked to each other (at which ports/interfaces)

Optional: See how spanning tree has blocked the redundant links

Any suggestions are welcome

[miheg]

To discover your network you may wish to adapt a script you can find here:

http://www.networkdiscovery.net/

It can give you a hostlist and if you adapt it a list of what port connects to what port.

Displaying is a little more complicated. To give it a sensible layout it needs a lot of (manual) work.

Cheers,

Michel

[Paraidomat]

Hallo Juergen Fischer,

i just wanted to take the opportunity to tell you about NeDi.

From the nedi.ch website:

FEATURES:

• DISCOVER

• Discover your network and find every end-node connected to it. Visualise the topology to get the big picture and find out where your assets are located.

• OPERATE

• Check if your networking devices are alive or have been rebooted. Stay ahead of increasing traffic, drops, errors, failed links or replaced modules.

• MANAGE

• Stay on top of the complete lifecycle from purchase to trade-in. Keep the configs organised and gain valuable insights for troubleshooting.

I have been using it for about 3-4 years now and it really works like a charm even for a mixed-vendor environment. Our environment has about 550 network components and all of them are backed-up and inventoried by NeDi. 

Most of the Cisco devices seem to work out of the box ... The only thing where i needed to tweak the nedi.conf-file was when i was trying to get backups from F5 load balancers. 

@Mods: Sorry for necroposting, but I just wanted to share that wonderful tool!

Best Regards from Germany,

Florian

[B.kablawi90]

InterMapper is an amazing tool to draw and monitor the network topology and to provide all kind of statistics, but it doesn't discover the devices automatically