Question 450
A core service requires minimum bandwidth for control-plane routing traffic. Observed: BGP keepalives are delayed under volumetric guest transit load. Which acceptance observation best confirms that the proposed change worked?
Explanation
Correct Answer
This acceptance criterion tests the actual fault. The source evidence was BGP keepalives are delayed under volumetric guest transit load. The correction addresses control-plane class lacks rate and priority protection in the congestion policy; success requires routing sessions remain healthy while excess guest traffic is rate-limited.
Incorrect Answers
That observation would verify a separate fault involving the policer match or bandwidth unit differs from the intended traffic contract. Its symptom is Business telemetry is discarded even when its contracted rate is not exceeded. For this case the actual issue is control-plane class lacks rate and priority protection in the congestion policy, and the relevant success signal is Routing sessions remain healthy while excess guest traffic is rate-limited.
This result is useful in another case with evidence VPN queue counters show no packets despite known VPN load. It does not test recovery from bgp keepalives are delayed under volumetric guest transit load. Check instead whether routing sessions remain healthy while excess guest traffic is rate-limited.
It confirms an unrelated service correction: Queue-specific congestion and scheduler weights hide localized buffer exhaustion. The present case reports BGP keepalives are delayed under volumetric guest transit load. Its completion test is Routing sessions remain healthy while excess guest traffic is rate-limited.