Selecting the QoS Queuing Method
Follow these steps to change the queuing method.
By default, RUCKUS devices use the weighted round robin (WRR) method of packet prioritization.
- Enter global configuration mode.
- Select the QoS queuing method.
Change the queuing method to strict priority (SP).
device(config)# qos mechanism strict bandwidth scheduling mechanism: strict priority Qos profile bandwidth percentages are ignored
Change the queuing method to mixed SP and WRR.
device(config)# qos mechanism mixed-sp-wrr bandwidth scheduling mechanism: mixed weighted priority with strict priority Unicast Traffic Profile qosp7 : Priority7(Highest) Set as strict priority Profile qosp6 : Priority6 Set as strict priority Profile qosp5 : Priority5 bandwidth requested 25% calculated 25% Profile qosp4 : Priority4 bandwidth requested 15% calculated 15% Profile qosp3 : Priority3 bandwidth requested 15% calculated 15% Profile qosp2 : Priority2 bandwidth requested 15% calculated 15% Profile qosp1 : Priority1 bandwidth requested 15% calculated 15% Profile qosp0 : Priority0(Lowest) bandwidth requested 15% calculated 15% Multicast Traffic Profile qosp7 : Priority7(Highest) Set as strict priority Profile qosp6 : Priority6 Set as strict priority Profile qosp5 : Priority5 bandwidth requested 25% calculated 25% Profile qosp4 : Priority4 bandwidth requested 15% calculated 15% Profile qosp3 : Priority3 bandwidth requested 15% calculated 15% Profile qosp2 : Priority2 bandwidth requested 15% calculated 15% Profile qosp1 : Priority1 bandwidth requested 15% calculated 15% Profile qosp0 : Priority0(Lowest) bandwidth requested 15% calculated 15%
Observe that the verification step is not necessary with either of these choices. - Return to privileged EXEC mode.
- Verify the configuration.
device# show qos scheduler-profile all User Scheduler Profile: test Scheduling Option: Mixed-SP-WRR Ports attached: (U1) -- Ports attached: (U2) -- Ports attached: (LAG) -- Ports attached: (LAG) -- Unicast per Queue details: Bandwidth% Traffic Class 0 15% Traffic Class 1 15% Traffic Class 2 15% Traffic Class 3 15% Traffic Class 4 15% Traffic Class 5 25% Traffic Class 6 sp Traffic Class 7 sp Multicast per Queue details: Bandwidth% Traffic Class 0 15% Traffic Class 1 15% Traffic Class 2 15% Traffic Class 3 15% Traffic Class 4 15% Traffic Class 5 25% Traffic Class 6 sp Traffic Class 7 sp Minimum Guaranteed Rate: Bandwidth% Unicast per Queue details: Bandwidth% Traffic Class 0 0% Traffic Class 1 0% Traffic Class 2 0% Traffic Class 3 0% Traffic Class 4 0% Traffic Class 5 0% Traffic Class 6 0% Traffic Class 7 0%
- Save the configuration.