Wireless Access

hello Aruba Team, 

I am designing an Aruba WIDS overlay network. does anyone know the preferred design criteria for an overlay network? -72 , -75, -80 dBm. 

For WIDS, this guide has some good content. For the design criteria, as the WIDS APs (Air monitors) don't broadcast, you can't really put a number to it. The guide suggests to put the AMs in a 1:4 ratio, but in the end it depends on what you want to detect and possibly protect against. If you design for reception of clients at -80 dBm, there is a good chance that an attack performed by a malicious client has a too high data rate (MCS) and can't be decoded by the AM, thus invisible. For rogue detection, this probably isn't a big issue as beacons typically go out on a low data rate because clients would otherwise not be able to hear those beacons. Also, if security is most important and you would like to minimize the chance to miss attacks, you would deploy higher density of Air monitors than if basic detection of clear attacks is enough.

It really depends on the requirements that you have on the overlay WIDS network.

hello Aruba Team, 

I am designing an Aruba WIDS overlay network. does anyone know the preferred design criteria for an overlay network? -72 , -75, -80 dBm. 

Also: https://www.arubanetworks.com/techdocs/aos/wifi-design-deploy/security/wids-wips/

For WIDS, this guide has some good content. For the design criteria, as the WIDS APs (Air monitors) don't broadcast, you can't really put a number to it. The guide suggests to put the AMs in a 1:4 ratio, but in the end it depends on what you want to detect and possibly protect against. If you design for reception of clients at -80 dBm, there is a good chance that an attack performed by a malicious client has a too high data rate (MCS) and can't be decoded by the AM, thus invisible. For rogue detection, this probably isn't a big issue as beacons typically go out on a low data rate because clients would otherwise not be able to hear those beacons. Also, if security is most important and you would like to minimize the chance to miss attacks, you would deploy higher density of Air monitors than if basic detection of clear attacks is enough.

It really depends on the requirements that you have on the overlay WIDS network.

hello Aruba Team, 

I am designing an Aruba WIDS overlay network. does anyone know the preferred design criteria for an overlay network? -72 , -75, -80 dBm.