JN0-683 · Question #45
You are asked to set up an IP fabric that supports AI or ML workloads. You have chosen to use lossless Ethernet. In this scenario, which statement is correct about congestion management?
The correct answer is A. The switch experiencing the congestion notifies the source device. In a lossless Ethernet environment, such as one designed to support AI or ML workloads, ECN (Explicit Congestion Notification) is used to signal congestion to the source device. When congestion occurs in the network, the switch experiencing the congestion marks packets with ECN…
Question
You are asked to set up an IP fabric that supports AI or ML workloads. You have chosen to use lossless Ethernet. In this scenario, which statement is correct about congestion management?
Options
- AThe switch experiencing the congestion notifies the source device.
- BOnly the source and destination devices need ECN enabled.
- CECN marks packets based on WRED settings.
- DECN is negotiated only among the switches that make up the IP fabric for each queue.
How the community answered
(55 responses)- A80% (44)
- B13% (7)
- C5% (3)
- D2% (1)
Explanation
In a lossless Ethernet environment, such as one designed to support AI or ML workloads, ECN (Explicit Congestion Notification) is used to signal congestion to the source device. When congestion occurs in the network, the switch experiencing the congestion marks packets with ECN to notify the source device. This allows the source to adjust its sending rate, helping to avoid further congestion and ensuring that traffic continues to flow efficiently.
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