Emergency-management inference requires strict priority for RoCE queues on Spectrum-X. What should engineers assign and verify?
Select an answer to reveal the explanation.
Short Explanation
Emergency-management inference cannot wait behind weekend backups—give RoCE its Spectrum-X QoS priority like sirens getting a clear lane, then verify the queues under load. Tuning WRED drop thresholds for bulk backup traffic and watching drop stats won't give your RoCE inference strict priority on Spectrum-X.
Full Explanation
Emergency-management inference that requires strict priority for RoCE queues on Spectrum-X needs engineers to assign QoS priority for the RoCE traffic class on the switches, then verify the queues behave under load. Priority mapping and scheduler weight/strict priority ensure life-safety inference is not delayed behind backups or scavenger traffic. Verification under load confirms the configuration is effective, not merely present in CLI.
Trusting DSCP for the management VLAN and confirming SNMP polling succeeds under load does not assign strict priority to the RoCE inference class on Spectrum-X; it only addresses management-plane visibility. Configuring WRED drop thresholds for bulk backup traffic and validating drop statistics during congestion manages backup drops but does not give RoCE inference strict priority on Spectrum-X. Tuning PFC headroom for the NVMe storage class and monitoring pause frame counters under burst load addresses lossless storage behavior, not the strict RoCE queue priority required for emergency-management inference.
Exam caveat: strict priority must land on the actual RoCE class and be tested—not replaced by management-VLAN DSCP trust, backup WRED thresholds, or NVMe PFC headroom tuning. Operational check: map emergency-management RoCE to the high-priority Spectrum-X queue, run contention with backups/scavenger flows, measure inference latency, and adjust/verify until SLOs hold; reject management-VLAN DSCP trust, backup WRED drop thresholds, or NVMe PFC headroom tuning as substitutes for RoCE strict priority. Include a contention drill in emergency-management acceptance: start backup or scavenger flows deliberately, confirm RoCE inference queues on Spectrum-X still meet latency targets, and roll back priority maps if verification fails rather than shipping unverified QoS into production.