What is the inter-switch link used to connect two Aruba CX switches in a VSX pair?

What is the inter-switch link used to connect two Aruba CX switches in a VSX pair?

• A. ISL
• B. Looped Cable
• C. T1/E1
• D. Optical fiber only

Answer: (A)

The inter-switch link is the dedicated, high-speed path between the two Aruba CX switches in a VSX pair. It carries the synchronization and forwarding state so the two devices function as a single logical switch, sharing MAC tables and control-plane information to support active-active forwarding and loop-free operation. The other options don’t fit: a looped cable would create a loop, T1/E1 are telecom circuits, and inter-switch links aren’t limited to optical fiber only.

The inter-switch link is the dedicated, high-speed path between the two Aruba CX switches in a VSX pair. It carries the synchronization and forwarding state so the two devices function as a single logical switch, sharing MAC tables and control-plane information to support active-active forwarding and loop-free operation. The other options don’t fit: a looped cable would create a loop, T1/E1 are telecom circuits, and inter-switch links aren’t limited to optical fiber only.