Aruba ACMA case studies
Aruba ACMA · Put your knowledge to work in context.
The Aruba Certified Mobility Associate (ACMA) is an associate-level credential from HPE Aruba Networking that validates a candidate's ability to deploy and operate Aruba wireless LANs. It suits network engineers, wireless administrators and managed-service staff who already understand basic IP networking and want to demonstrate practical competence with Aruba's wireless product line rather than general RF theory alone. The Aruba ACMA case studies are 5 cases and about 3,752 words.
1Duplicate SSID, Two Subnets: Which Virtual AP Actually Wins
A 48-AP campus runs ArubaOS 8 with two controllers in one cluster. HQ-CORP is the only corporate SSID; it uses 802.1X against RADIUS, which returns VLAN 110.
768 words, about 4 min21,200 Seats, 12 APs, 80 MHz Channels: Designing for Airtime, Not Peak Rate
An 1,200-seat auditorium has 12 ceiling APs, all 5 GHz-capable, and will host a three-day conference with roughly 3,000 client devices. The design was copied from an office template: ARM enabled, 80 MHz channel width on 5 GHz, 40 MHz on 2.4 GHz, and both a staff SSID and a guest SSID broadcast on every AP.
754 words, about 4 min3Retiring a Shared PSK in a Hospital Without Taking a Ward Offline
A 600-bed hospital runs one SSID for 400 infusion pumps and 150 clinical tablets, secured with WPA2-PSK. The passphrase is printed on a laminated card at every nursing station.
723 words, about 4 min4Four-Second Voice Gaps When Handsets Cross Controllers
A distribution centre has 300 APs on two Mobility Controllers in one cluster, all on one large VLAN, using WPA2-Enterprise with PEAP-MSCHAPv2. Picker handsets report four to six second audio gaps when users walk between aisles served by different controllers.
738 words, about 4 min5A Store That Drops POS Every 40 Minutes, and 339 More Like It
Store #212 of a 340-store retail chain runs six Instant APs in one cluster, managed through Aruba Central. The POS SSID is bridged locally on 2.4 GHz, and payments go to a cloud endpoint over the store broadband link.
769 words, about 4 min