Test the policy-map size against the CAM space for a specific port-pipe or all port-pipes using these
commands:
• test cam-usage service-policy input policy-map {stack-unit } number port-set
number
• test cam-usage service-policy input policy-map {stack-unit } all
The output of this command, shown in the following example, displays:
• The estimated number of CAM entries the policy-map will consume.
• Whether or not the policy-map can be applied.
• The number of interfaces in a port-pipe to which the policy-map can be applied.
Specifically:
• Available CAM — the available number of CAM entries in the specified CAM partition for the specified
line card or stack-unit port-pipe.
• Estimated CAM — the estimated number of CAM entries that the policy will consume when it is
applied to an interface.
• Status — indicates whether the specified policy-map can be completely applied to an interface in the
port-pipe.
– Allowed — indicates that the policy-map can be applied because the estimated number of CAM
entries is less or equal to the available number of CAM entries. The number of interfaces in the
port-pipe to which the policy-map can be applied is given in parentheses.
– Exception — indicates that the number of CAM entries required to write the policy-map to the
CAM is greater than the number of available CAM entries, and therefore the policy-map cannot be
applied to an interface in the specified port-pipe.
NOTE: The show cam-usage command provides much of the same information as the test cam-
usage command, but whether a policy-map can be successfully applied to an interface cannot be
determined without first measuring how many CAM entries the policy-map would consume; the
test cam-usage command is useful because it provides this measurement.
• Verify that there are enough available CAM entries.
test cam-usage
Example of the test cam-usage Command
Dell# test cam-usage service-policy input pmap_l2 port-set 0 | port pipe
Port-pipe | CAM Partition | Available CAM | Estimated CAM | Status
=====================================================================
0 L2ACL 500 200 Allowed(2)
Specifying Policy-Based Rate Shaping in Packets Per
Second
Configuration of rate shaping in packets per second (pps) for QoS output policies is supported on the
platform.
You can configure rate shaping in pps for a QoS output policy, apart from specifying the rate shaping
value in bytes. You can also configure the peak rate and the committed rate for packets in kilobits per
second (Kbps) or pps.
Committed rate refers to the guaranteed bandwidth for traffic entering or leaving the interface under
normal network conditions. When traffic propagates at an average rate that is less than or equal to the
Quality of Service (QoS)
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