What is RADIUS CoA (RFC 3576) used for?
What is RADIUS CoA (RFC 3576) used for?
RADIUS CoA (RFC 3576) is used to transmit messages to the Network Access Device (NAD) or Network Access Server (NAS) to modify a user's session status. This functionality allows for dynamic modifications to user sessions that are already authenticated, such as changing their authorization parameters or disconnecting them.
per aruba documentation : << The RADIUS CoA is used in the AAA service framework to allow dynamic modification of the authenticated, authorized, and active subscriber sessions. >> Answer is D.