Glossary

Version Description
9.10(0.0) Introduced on the S6100-ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
Usage
Information
This feature allows you to determine if the CAM has enough space available before applying the
configuration on an interface.
An input policy map with both Trust and Class-map configuration, the Class-map rules are ignored and
only the Trust rule is programmed in the CAM. In such an instance, the Estimated CAM output column
contains the size of the CAM space required for the Trust rule and not the Class-map rule.
The following describes the test 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
DellEMC# 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 per Port |
Status
| | | |per Port
|(Allowed ports)
0 0 L2ACL 500 200
Allowed (2)
1298 Quality of Service (QoS)