2017-10-03 13:25:00 UTC

Recommended tool to perform network topology discovery


We are searching for a tool (or procedure) to perform a network topology discovery, in order to be able to create a reliable network map. Complete automation is not required, we are not trying to avoid the workload, only to do it correctly using the right tool. 

Thanks.

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2222 Answers

author avatar
Consultant

We are using StableNet from Infosim with best success (does not only discovery and inventory but also dependency mapping and close to automatic root cause discovery)

2017-10-19 12:05:04 UTC
author avatar
User

SolarWinds' NTM is one of the best (paid) tools. Other opensource tools such as OpenNMS have this feature too. However, keep in mind that in order to detect the physical port connectivity (at L2/switch) between the devices you would need to have CDP/LLDP enabled. Some network admins disable this due to security reasons (I disagree) and so they would get only L3/Route level topology details.

2017-10-19 07:33:40 UTC
author avatar
Vendor

You can also try Cisco Network assistant (free tool) if you have Cisco Network.

2017-10-17 10:10:10 UTC
author avatar
Vendor

You can try Solarwinds Network Mapper

2017-10-17 09:57:56 UTC
author avatar
Consultant

Hello,

You can try the DUDE a free monitoring tool, by me, it ideally fit this needs.
https://mikrotik.com/thedude

2017-10-16 20:31:04 UTC
author avatar
Vendor

Hi! I recommend you to use PRTG Software, which is helpful to identify your network elements. Also, if you have an only-CISCO network, you can use CDP command to create a network map.

2017-10-16 16:20:19 UTC
author avatar
Consultant

Thank you all for your recommendations! We will try the mentioned tools and let you know of the results in a future post.

2017-10-16 13:22:40 UTC
author avatar
Vendor

NetIM is a newer release from Riverbed that does this. It is price competitive with the other options listed here. https://www.riverbed.com/products/steelcentral/network-performance-management/infrastructure-management/steelcentral-netim.html.

2017-10-16 13:07:03 UTC
author avatar
Vendor

SolarWinds, Symantec or Network Node Mgr should do the trick. All have pkgs based on environment size with feature sets aligned with ITIL.

2017-10-16 12:38:44 UTC
author avatar
Consultant

NetBrain is great but it's massively overpriced for this purpose. If you just want to do discovery and some basic mapping, there are plenty of free or cheap tools to do that. Google search is your friend here...

2017-10-16 12:37:58 UTC
author avatar
Vendor

We use Cisco Prime Infrastructure. You enter a subnet and it shows you all the devices connected. I've seen a software called NetBrain Tech that can map out your network as well.

2017-10-16 12:36:00 UTC
author avatar
Reseller

The best way to discover a network and diagram it is a commercial product called "Netbrain" their website is https://www.netbraintech.com/, The simpler open source version of doing this would be nmap(Zenmap) and stitch the output files together and diagram the layout.

2017-10-16 12:30:59 UTC
author avatar
Consultant

Make sure SNMP is enabled on all devices first. Be sure to change the password as well. Then use any tool mentioned previously.

2017-10-16 12:10:43 UTC
author avatar
Consultant

Hello. Try Cisco Network Assistant which is also free

2017-10-16 12:08:02 UTC
author avatar
Vendor

You need to pick tools (some commercial and lots of open source available) that support LLDP (link layer discovery protocol) and/or CDP which is Cisco’s propriety discovery protocol.

2017-10-16 11:10:32 UTC
author avatar
Real User

Solarwinds or if want to pay more and get more you had better OptiView XG Network Analysis Tablet

2017-10-16 10:34:10 UTC
author avatar
Consultant

Depends on exactly what you would need and your budget. If its just to do inventory, you can find very cheap easy solutions with limited capability. For Enterprise wide Discovery & Monitoring + Automation I would urge you to look at the MicroFocus(Previously HP Enterprise) NOM Suite of tools. Full Network Operation Management solution to discover, monitor, map and automate your entire network. It also has the highest Network Device support list in the business.

2017-10-16 09:00:25 UTC
author avatar
Vendor

Hi,

On the basis of my experience, by far CA spectrum is the best tool for network topology Discovery.
I'll recommend you to use CA spectrum and if you want a demo then kindly let me know.

2017-10-16 08:49:36 UTC
author avatar
Real User

Hi, maybe MRTG can help you a light solution ?
https://network-weathermap.com/
PS: On home/small network, a simple PING and (ip neighbor) ARP can furnish quick info on existing "responders".

2017-10-16 08:40:10 UTC
author avatar
Consultant
2017-10-16 08:23:54 UTC
author avatar
Vendor
2017-10-16 08:16:57 UTC
author avatar
User

HEllo, I recommned standalone tool called Ipswitch WhatsConnected (port-to-port connectivity, VLAN, virtual enviroment mapping, audit hw, firmware, SN´s, export to Visio and PDF.

2017-10-16 08:15:09 UTC
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