You must optimize an IPv6 wireless design to ensure that RA packets from routers can be trimmed to a minimum frequency that still maintains IPv6 client connectivity. Which configuration do you use?
A. RA throttling
B. AAA Override for IPv6 ACLs
C. IPv6 ACLs
D. RA guard
A is correct
https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-0/IPV6_DG.html#pgfId-81592
A is correct
Router Advertisement Throttling
Router Advertisement (RA) throttling allows the controller to enforce rate limiting of RAs headed towards the wireless network. By enabling RA throttling, routers that are configured to send RAs frequently (every 3 seconds) can be trimmed back to a minimum frequency that will still maintain IPv6 client connectivity. This allows airtime to be optimized by reducing the number of multicast packets that must be sent. In all cases, if a client sends a Router Solicitation (RS), then an RA will be allowed through the controller and unicast to the requesting client. This is to ensure that new clients or roaming clients are not negatively impacted by RA throttling.
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