After a township marks ordinary backup flows with the RoCE codepoint, operators see PFC storms across the pod. What should they fix first?
Select an answer to reveal the explanation.
Short Explanation
If the wrong trucks get the “fragile freight” sticker, the whole loading dock starts slamming the brakes—classic PFC storm from mis-marking. Fix classification first so only real RoCE rides the lossless class.
Full Explanation
Priority Flow Control acts on traffic classes; incorrect marking lets non-RDMA flows trigger pause behavior and congest unrelated queues. Correct classification and DSCP/CoS marking are prerequisites before enabling RDMA-oriented CoS. BGP MED, disabling ECMP, or shrinking MTU do not remediate mis-marked lossless classes.