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-D devices, define the following:
a slope policy ID value
The system will not dynamically assign a value.
include a description
The description provides a brief overview of policy features.
Option to use either 2 slopes per queue or 3 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.
Optional non-TCP slope for the non-TCP 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 for both 2-slope per queue and 3-slope per queue option. When using 2-slope per queue, the non-tcp slope parameters are not used.
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
non-tcp-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-D:
A:ALA-7>config>qo>slope-policy# info
----------------------------------------------
description "slope policy SlopePolicy1"
high-slope
no shutdown
exit
low-slope
no shutdown
exit
non-tcp-slope
no shutdown
exit
----------------------------------------------
A:ALA-7>config>qos>slope-policy#