1. Enable it in places to check for radar events. If you get few, then yes. Client devices are almost fully capable now. Hidden SSID’s are the only issue. Some clients don’t probe on DFS channels, and will only respond to beacons. Make sure 2.4 is usable for the small number of incompatible devices.
2. No. Don’t even consider 40MHz unless you’re using almost all the DFS channels, but even then you’ll probably have to disable it in some high density areas. From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of David Blahut Sent: Monday, September 25, 2017 3:17 PM To: [email protected] Subject: [WIRELESS-LAN] Two RF Questions Greetings, I have two hopefully simple RF related questions: 1. Should I enable the extended UNII-2 channels campus wide? 2. Should I enable 40Mhz channel width campus wide? In other words what are you doing on your campus and what is the "best practice? Our wireless infrastructure: 3 Cisco 5508s running 8.2.141.0 20 - 3800 APs 368 - 3700 APs 414 - 3600 APs 8 - 3500 APs 7 - 1810 APs 32 - 1142 APs Prime 3.1.0 Thanks for your input. David ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
