Auto Qos parameters

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Reza Sharifi Sun, 11/22/2009 - 18:10

Ariel,


You can use default or change the parameters:


By default, all allocation values are equally mapped among the four queues (25, 25, 25, 25). Each queue has 1/4 of the buffer space.


By default, the WTD thresholds for queues 1, 3, and 4 are set to 100 percent. The thresholds for queue 2 are set to 200 percent.


This example shows how to map a port to queue-set 2. It allocates 40 percent of the buffer space to egress queue 1 and 20 percent to egress queues 2, 3, and 4. It configures the drop thresholds for queue 2 to 40 and 60 percent of the allocated memory, guarantees (reserves) 100 percent of the allocated memory, and configures 200 percent as the maximum memory that this queue can have before packets are dropped:

mls qos queue-set output 2 buffers 40 20 20 20


mls qos queue-set output 2 threshold 2 40 60 100 200
Here is the link:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/
software/release/12.2_25_see/configuration/guide/swqos.html#wp1179728
HTH
Reza

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