In a wireless Cisco SD-Access deployment, which roaming method is used when a user moves from one access point to another on a different access switch using a single WLC?
Correct Answer: B
SDA RoamingSDA supports two additional types of roaming, which are Intra-xTR and Inter-xTR.
In SDA, xTR stands for an access-switch that is a fabric edge node. It serves both as an ingress tunnel router as well as an egress tunnel router.
Intra-xTR
When a client on a fabric enabled WLAN, roams from an access point to another access point on the same access-switch, it is called Intra-xTR. Here, the local client database and client history table are updated with the information of the newly associated access point.
Inter-xTR.
When a client on a fabric enabled WLAN, roams from an access point to another access point on a different access-switch, it is called Inter-xTR.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-
guide/b_wl_16_10_cg/mobility.html