We are working for BoQ to propose the WLAN system at Suanjitrlada palace (see attach). The concept is we need 1 Active controller + 1 HA Controller to support 15 APs. Customer want us to guaranteed SLA 99.995% so the redundancy is very important. I’m not sure about the BoQ to add 1 HA controller configuration. Could you please advise us for the correct BoQ to meet this requirement?