CANOGA PERKINS 9175 Command Reference - Manual (Page 579)

CanogaOS Command Reference
32-4
32.5 queue-weight
Use this command to configure a bandwidth allocation weight for queue 0 in SAP egress policy. To use
the default weight, use the no form of this command. The default weight of queue 0 is 1.
Command Syntax
queue-weight WEIGHT
no queue-weight
WEIGHT: The weight value of queue 0 of all EVCs at egress UNI accounts for proportional bandwidth
sharing. The valid weight value ranges from 1 to 100.
Command Mode
SAP Egress Policy Configuration
Usage
1. In SAP egress policy, the queue 1 - queue 3 are always treated with high priorities to be scheduled
and their bandwidths are generally committed through configuring the queue-rate. So, the system
does not allow to configure their weight values.
2. Queue 0 is generally used by BE (Best Effort) traffic, and it only use the residual bandwidth left by
high-priority queues. The weight values is used for WDRR scheduling in a same class.
Examples
In the following example, the queue-weight command is used to assign a weight for WDRR scheduling
for queue 0 in the SAP egress policy.
Switch(config)# qos sap-egress evc110-policy-at-egress-uni
Switch(config-sap-egress)# queue-weight 2
Related Commands
None
32.6 queue <0-3> threshold
Use this command to configure Tail Drop threshold for each queue in an SAP egress policy.
Command Syntax
queue <0-3> threshold THRESH1 THRESH2 THRESH3
no queue <0-3> threshold
THRESH1: The drop threshold for red-colored packets. If the current queue length is greater than the
threshold, all incoming red-colored packets will be dropped.
THRESH2: The drop threshold for yellow-colored packets. If the current queue length is greater than the
threshold, all incoming yellow-colored packets will be dropped.