Alcatel-Lucent 7450 Quality Of Service Manual page 637

config>qos>slope-policy>high-slope
config>qos>slope-policy>low-slope
Description This command enables or disables the administrative status of the Random Early Detection slope.
By default, all slopes are shutdown and have to be explicitly enabled (no shutdown).
The no form of this command administratively enables the RED slope.
Default shutdown - RED slope disabled implying a zero (0) drop probability
start-avg
Syntax start-avg percent
no start-avg
Context config>qos>slope-policy>exceed-slope
config>qos>slope-policy>high-slope
config>qos>slope-policy>low-slope
Description
This command sets the exceed, low, or high Random Early Detection (RED) slope position for the
shared buffer average utilization value where the packet discard probability starts to increase above
zero. The percent parameter is expressed as a percentage of the shared buffer size.
The no form of this command restores the start-avg value to the default setting. If the max-avg setting
is smaller than the default, an error will occur and the start-avg setting will not be changed to the
default.
Default
start-avg 70 — High slope default is 70% buffer utilization before discard probability starts to
increase above zero.
start-avg 50 — Low slope default is 50% buffer utilization before discard probability starts to increase
above zero.
start-avg 30 — Exceed slope default is 30% buffer utilization before discard probability starts to
increase above zero
Parameters percent — The percentage of the shared buffer space for the buffer pool at which point the drop
Quality of Service Guide
probability starts to increase above zero. The value entered must be less than or equal to the
current setting of max-avg. If the entered value is greater than the current value of max-avg,
an error will occur and no change will take place.
Values 0 to 100
Slope QoS Policies
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