300-640 DCAI: Implementing Cisco Data Center AI Infrastructure

By Cisco · Question Mode

QuestionQ2

AI Infrastructure Operations and Troubleshooting

An engineer configures quality of service in a Cisco ACI fabric to connect VAST storage servers. Which attribute combination must be selected?

Explanation

VAST storage traffic in Cisco ACI uses an RDMA QoS class configured with Weighted Random Early Detection (WRED) and Explicit Congestion Notification enabled. ECN marks packets that would otherwise be dropped, supporting the required RoCEv2 congestion-handling behavior.

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