This read-create INTEGER sets the maximum drop probability applied to Drop Precedence 1 traffic once the queue reaches the DP1 WRED maximum threshold. An admin sets this to an intermediate value between the DP0 and DP2 probabilities, giving DP1 traffic a moderate level of protection during sustained congestion. For example, an admin might set this probability to 30 percent, between a 10 percent DP0 probability and a higher DP2 probability, so DP1 traffic is dropped more readily than premium traffic but less aggressively than the lowest-priority class.