Which of the following is a recommended congestion-avoidance mechanism for modern rich-media networks?
- Weighted RED (WRED)
- Tail drop
- FIFO
- RED
Explanation: WRED provides congestion avoidance by selectively dropping packets before the queue buffers are full. Packet drops can be manipulated by traffic weights denoted by either IP Precedence (IPP) or DSCP. Packets with lower IPP values are dropped more aggressively than are those with higher IPP values; for example, IPP 3 would be dropped more aggressively than IPP 5 or DSCP, and AFx3 would be dropped more aggressively than AFx2, and AFx2 would be dropped more aggressively than AFx1.
Exam with this question: CCNPv8 ENCOR Chapter 14: Do I Know This Already? Quiz Answers
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