Aruba ACSP case studies
Aruba ACSP · Put your knowledge to work in context.
The Aruba Certified Switching Professional (ACSP) is a professional-level credential from HPE Aruba Networking that validates the ability to design, deploy, and operate modern ArubaOS-CX campus switching fabrics. It is aimed at network engineers who already handle day-to-day switching and want to prove they can build resilient, secure, and automated campus networks rather than just configure individual ports. The Aruba ACSP case studies are 5 cases and about 3,975 words.
1The Tuesday Broadcast Storm in IDF-3
IDF-3 in Building B holds three Aruba CX 6300M switches. SW1 dual-homes to the 8360 core pair, SW2 and SW3 each connect to SW1, and a 10G DAC cross-connects SW2 to SW3.
813 words, about 4 min2Backup Slower After Dual-Homing
Four research nodes each dual-home 25 GbE into an Aruba 8325 VSX pair as a multi-chassis LAG with LACP; the ISL is a 2x100G LAG. Node A's nightly backup moved 8 TB in 62 minutes over its old single 25G link.
772 words, about 4 min3The Backup Link That Never Came Up
An 8360 at HQ is the ABR between area 0 (core) and area 1 (branches). One branch 6300 has two uplinks in area 1: primary 1G fiber (cost 10) and a backup LTE path through a carrier CPE handing off Ethernet with a 1400-byte MTU (cost 100).
799 words, about 4 min4Split Brain at 02:00
The ISL is a 2x100G LAG across two line cards. Keepalive runs over a shared 1G management switch that also carries OOB and the automation host.
787 words, about 4 min5Phones Rebooting Every 90 Seconds
About 30 desks on Aruba CX 6200 access switches use 802.1X with MAB fallback against a RADIUS server, dynamic VLAN assignment, and a device profile that places LLDP-MED phones into voice VLAN 100. Desks have a phone with a PC daisy-chained behind it.
804 words, about 4 min