Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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test cam-usage

Checks the Input Policy Map configuration for the CAM usage.

Syntax

test cam-usage service-policy input policy-map stack-unit {[ number | [all]}

Parameters

policy-map	Enter the policy map name.
stack-unit number	(OPTIONAL) Enter the keywords `stack-unit` then the stack-unit number.
stack-unit all	(OPTIONAL) Enter the keywords `stack-unit all` all to indicate all the stack-units.

Defaults

none

Command Modes

EXEC

Supported Modes

Full–Switch

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
8.3.16.1	Introduced on the MXL 10/40GbE Switch IO Module.

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 text cam-usage service-policy input policy-map linecard command shown in the following example.

Field	Description
stack-unit	Indicates the line card 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 linecard/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)
                                             1          L2ACL        100           200 
                                             Exception
                                             1           0        L2ACL        1000          200  
                                             Allowed (5)
                                             1           1        L2ACL        0             200 
                                             Exception
                                             …
                                             …
                                             …
                                             13          1        L2ACL        400           200 
                                             Allowed (2)
                                             Dell#