Quick Reference Guide
356 | Quality of Service (QoS) Commands
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The last two parameters, namely sampling rate and decay exponent, are hierarchically specified in this
command. That is, in order to provide a value for the decay exponent <0-16>, the user is required to
also specify a sampling rate <0-1000000> for proper command interpretation.
Syntax
randomdrop <1-250000> <1-500000> <0-100> [<0-1000000> [<0-16>]]
Mode
Policy-classmap Config
Policy Type
Out
shape average
This command is used to establish average rate traffic shaping for the specified class, which limits
transmissions for the class to the committed information rate, with excess traffic delayed via queueing.
The committed information rate is specified in kilobits-per-second (Kbps) and is an integer from 1 to
4294967295.
Syntax
shape average <1-4294967295>
Mode
Policy-classmap Config
Restrictions
This shaping rate must not exceed the maximum link data rate of the interface to which the policy is
applied.
Policy Type
Out
shape peak
This command is used to establish peak rate traffic shaping for the specified class, which allows
transmissions for the class to exceed the committed information rate by sending excess traffic with the
understanding that it could be dropped by a downstream network element. Two rate parameters are
used, a committed information rate and a peak information rate. Each of these rates is specified in
kilobits-per-second (Kbps) and is an integer from 1 to 4294967295. The peak rate must be specified as
equal to or greater than the committed rate.
Syntax
shape peak <1-4294967295> <1-4294967295>
Mode
Policy-classmap Config
Restrictions
Neither of the shaping rate parameters is allowed to exceed the maximum link data rate of the interface
to which the policy is applied.
Policy Type
Out
Note: Queue depth management defaults to tail drop, but the randomdrop command can be
used to change to a RED scheme.
Note: Queue depth management defaults to tail drop, but the randomdrop command can be
used to change to a RED scheme.