What are functions of a WRED drop profile

The WRED drop profile has the following functions:
- By default, the AR uses the tail drop mechanism. The AR discards data packets at the end of a queue when congestion occurs until the congestion problem is solved. The tail drop mechanism causes global Transmission Control Protocol (TCP) synchronization and reduces link usage. To solve the problem, configure the Weighted Random Early Detection (WRED) WRED in queues.
- You can use a WRED drop profile to configure different drop probability values based on priorities so that the AR first discards low-priority packets and ensures requirements of high-priority and low-delay services.

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