This section provides information to configure port scheduler policies using the command line interface.
This section provides an overview of QoS port scheduler policies on the 7210 SAS-T.
The port-scheduler-policy command creates a port scheduler template which may be assigned to an egress port. Only one port scheduler policy is allowed per port. There is a “default” port-scheduler policy (which services the queues of the port in a Strict order) associated with each port. To change the behavior, users can associate the port with another port-scheduler policy. The policy contains mode commands to set the mode of scheduling (RR, Strict, WRR, WDRR) and queue commands to set the weight of the queue, when the mode is set to one of WRR and WDRR. In WRR/WDRR, a strict option treats that particular queue as a strict queue, this leads to a hybrid mode of scheduling (WRR+Strict, WDRR+Strict).
A basic QoS port scheduler policy must conform to the following:
To create a port scheduler policy, define the following:
Use the following syntax to create a QoS port scheduler policy.
Note that the create keyword is included in the command syntax upon creation of a policy.
The following is a sample port scheduler policy configuration output.
This section describes the service management tasks.
You can copy an existing QoS policy, rename it with a new QoS policy value, or overwrite an existing policy. The overwrite option must be specified or an error occurs if the destination policy exists.
To prevent configuration errors use the copy command to make a duplicate of the original policy to a work area, make the edits, and then overwrite the original policy.