A new wireless network design has these requirements:
• AireOS WLCs as guest anchors
• a Cisco Catalyst 9800 Series WLC as the foreign controller
• use of Wi-Fi 6 APs
• inter-controller roaming for guest users
Which two design approaches meet these requirements? (Choose two.)
I think it's A + B Any comment here
As far as I can tell E = wrong as it is related to controllers comm unication in a mobility group.
Can't be A either as communication between controllers uses UDP. Data between them uses EoIP.
when using a mix of 9800 and AireOS for mobility/anchoring, secure mobility is used. EoIP will be used only between two AireOS.
Types of Tunnel • Secure - The Catalyst 9800 controllers or the 9800 and AireOS (IRCM image) controllers use Control tunnel 16666 for Mobility Control messages and Data tunnel 16667 for Mobility Data Messages . This secure link is called Secure Mobility Tunnel. • EOIP - Controllers (AireOS to AireOS or AireOS (IRCM image) to AireOS (old) ) within a mobility group communicate among themselves over a well-known UDP port 16666, and exchange data traffic through an Ethernet-over-IP (EoIP) tunnel. This is an unencrytpted connection
BE , BE