Reference Guide
The following describes the text cam-usage service-policy input 
policy-map stack-unit command shown in the following example.
Field Description
stack-unit Indicates the stack-unit slot number.
Portpipe Indicates the portpipe number.
CAM Partition The CAM space where the rules are added.
Available CAM Indicates the free CAM space, in the partition, for the 
classification rules.
NOTE: The CAM entries reserved for the default rules 
are not included in the Available CAM column; free 
entries, from the default rules space, cannot be used as 
a policy map for the classification rules.
Estimated CAM 
per Port
Indicates the number of free CAM entries required (for the 
classification rules) to apply the input policy map on a single 
interface.
NOTE: The CAM entries for the default rule are not 
included in this column; a CAM entry for the default rule 
is always dedicated to a port and is always available for 
that interface.
Status (Allowed 
ports)
Indicates if the input policy map configuration on an 
interface belonging to a stack-unit/port-pipe is successful 
— Allowed (n) — or not successful — Exception. The 
allowed number (n) indicates the number of ports in that 
port-pipe on which the Policy Map can be applied 
successfully.
NOTE: In a Layer 2 Policy Map, IPv4/IPv6 rules are not allowed; therefore, the 
output contains only L2ACL CAM partition entries.
Example
Dell# test cam-usage service-policy input pmap_l2 stack-unit 
all
For a L2 Input Policy Map pmap_l2, the output must be as 
follows,
stack-unit|Portpipe|CAM Partition|Available CAM|Estimated CAM|
Status
 | | | |per Port |
(Allowed ports)
0 0 L2ACL 500 200 
Allowed (2)
0 1 L2ACL 100 200 
Exception
1 0 L2ACL 1000 200 
Allowed (5)
1 1 L2ACL 0 200 
Exception
 …
 …
1372
Quality of Service (QoS)










