naveen a 6500 can have qos based on the module. so modules have priority q + normal transmit.
some have only normal queues without any priority.
I can see that the cos map being changed from using queue2 and 3 to just queue 3. so any frames with cos 3 4 6 7 will be serviced in queue 3 with various thresholds. threshold indicated in random detect have two values
minimum threshold define at what % of the queue limit should wred kick in to start weighted random discarding packets beyond this % threshold limit
max is the maximum threshold in % of queue capacity that will start the all packet discard beyond this point scenario.