HPE Aruba Certified Network Security Expert (ACNSX) — Question 75

An administrator is managing a network comprised of AOS-CX switches deployed at the aggregation layer. The switches are paired in a VSX stack and run the
OSPF routing protocol. The administrator is concerned about how long it takes for OSPF to converge when one of the VSX switches has to reboot.
What should the administrator to do speed up the OSPF convergence of the switch that is rebooting?

Answer options

• A. Change the VSX ISL link from an OSPF broadcast link point-to-point.
• B. Implement graceful restart on the VSX switches and their neighboring OSPF switches.
• C. Decrease the VSX initial synchronization timer on the two VSX switches.
• D. Define non-backbone areas on the VSX switches as totally stubby areas.

Correct answer: B

Explanation

Enabling graceful restart on VSX switches allows OSPF to maintain its adjacency and continue routing even during a switch reboot, thus speeding up convergence. Changing the link type or adjusting timers may not directly address the issue of maintaining OSPF adjacencies during a reboot, while defining stub areas does not contribute to faster convergence in this context.