Create a slope QoS policy for 7210 SAS-Dxp

Configuring and applying slope policies is optional. If no slope policy is explicitly applied to a port, a default slope policy is applied.

To create a new slope policy for 7210 SAS-Dxp devices, define the following:

• a slope policy ID value; the system will not dynamically assign a value

• a description; the description provides a brief overview of policy features

• two slopes per queue:

  • the high slope for the high priority Random Early Detection (RED) slope graph

  • the low slope for the low priority Random Early Detection (RED) slope graph

• the time average factor (TAF), a weighting exponent used to determine the portion of the shared buffer instantaneous utilization and shared buffer average utilization used to calculate the new shared buffer average utilization

Use the following CLI syntax to configure a slope policy with two slopes per queue.

 config>qos
     slope-policy name
         description description-string
         high-slope
             start-avg percent
             max-avg percent
             max-prob percent
             no shutdown
         low-slope
             start-avg percent
             max-avg percent
             max-prob percent
             no shutdown
         time-average-factor taf

The following displays the slope policy configuration for 7210 SAS-Dxp:

A:ALA-7>config>qo>slope-policy# info
----------------------------------------------
            description "slope policy SlopePolicy1"
            high-slope
                no shutdown
            exit
            low-slope
                no shutdown
            exit
         exit
----------------------------------------------
A:ALA-7>config>qos>slope-policy#