Concept Guide
IpMacAcl : 0
VmanQos : 0
VmanDualQos : 0
EcfmAcl : 0
FcoeAcl : 0
iscsiOptAcl : 0
ipv4pbr : 0
vrfv4Acl : 0
Openflow : 0
fedgovacl : 0
DellEMC#
View CAM Usage
View the amount of CAM space available, used, and remaining in each partition (including IPv4 and IPv6 Flow and Layer 2 ACL sub-
partitions) using the show cam-usage command in EXEC Privilege mode
The following output shows CAM blocks usage for Layer 2 and Layer 3 ACLs and other processes that use CAM space:
Example of the show cam-usage Command
DellEMC#show cam-usage
Stackunit|Portpipe| CAM Partition | Total CAM | Used CAM |Available CAM
========|========|=================|=============|=============|==============
0 0 | IN-L3 ACL | 512 | 1 | 511
| | IN-V6 ACL | 0 | 0 | 0
| | IN-L2 ACL | 768 | 0 | 768
| | OUT-L3 ACL | 158 | 5 | 153
| | IN-L3 ECMP GRP| 1024 | 0 | 1024
| | OUT-V6 ACL | 158 | 0 | 158
| | OUT-L2 ACL | 206 | 7 | 199
7 | 0 | IN-L3 ACL | 512 | 1 | 511
| | IN-V6 ACL | 0 | 0 | 0
| | IN-L2 ACL | 768 | 0 | 768
| | OUT-L3 ACL | 158 | 5 | 153
| | OUT-V6 ACL | 158 | 0 | 158
| | OUT-L2 ACL | 206 | 7 | 199
Codes: * - cam usage is above 90%.
DellEMC#
Conguring CAM Threshold and Silence Period
This section describes how to congure CAM threshold and silence period between CAM threshold syslog warnings.
The CAM threshold and silence period conguration is applicable only for Ingress L2, IPv4, IPv6 and Egress L2, IPv4, and IPv6 ACL CAM
groups. For other ACL CAM regions, the CAM threshold and silence period is xed and the values are 90 percent and 0 respectively.
You can assign CAM threshold value using cam-threshold command to receive syslog messages when the CAM usage reaches the
congured CAM threshold. The congured CAM threshold is a value specic to FP based on CAM features such as Ingress and Egress L2,
IPV4, IPV6. The system checks the CAM usage of the features with the set threshold to display a syslog message, which contains the
CAM region, slot/port-pipe and pipeline information. By default, syslog warning appears when the CAM usage is
90 percent.
You can also congure the silence period for the syslog message on the CAM usage. A syslog warning appears when the CAM usage
exceeds the congured CAM threshold. The silence period starts after the initial syslog warning. The syslog warning does not appear until
the silence period is active. By default, the silence period is 0 seconds.
Setting CAM Threshold and Silence Period
To congure the CAM threshold and silence period, use the following commands.
• Assign the CAM threshold percentage
CONFIGURATION mode
Content Addressable Memory (CAM)
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