Is this a requirement for implementing Priority Flow Control (PFC) on an ArubaOS-CX switch interface?

Is this a requirement for implementing Priority Flow Control (PFC) on an ArubaOS-CX switch interface?

Solution: configuring trust of Cos on the interface
A . Yes
B. No

Answer: A

Explanation:

Configuring trust of CoS on the interface is a requirement for implementing Priority Flow Control (PFC) on an ArubaOS-CX switch interface. PFC is a feature that allows a switch to pause traffic on a per-class basis using IEEE 802.1Qbb frames. To use PFC, the switch must trust the CoS values in the incoming frames and map them to priority groups and queues1.

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