C
HAPTER
21
| System Management Commands
System Status
– 504 –
show access-list
tcam-utilization
This command shows utilization parameters for TCAM (Ternary Content
Addressable Memory), including the number policy control entries in use,
the number of free entries, and the overall percentage of TCAM in use.
COMMAND MODE
Privileged Exec
COMMAND USAGE
Policy control entires (PCEs) are used by various system functions which
rely on rule-based searches, including Access Control Lists (ACLs), IP
Source Guard filter rules, Quality of Service (QoS) processes, or traps.
For example, when binding an ACL to a port, each rule in an ACL will use
two PCEs; and when setting an IP Source Guard filter rule for a port, the
system will also use two PCEs.
EXAMPLE
Console#show access-list tcam-utilization
Total Policy Control Entries : 512
Free Policy Control Entries : 352
Entries Used by System : 160
Entries Used by User : 0
TCAM Utilization : 31.25%
Console#
show memory This command shows memory utilization parameters.
COMMAND MODE
Normal Exec, Privileged Exec
COMMAND USAGE
This command shows the amount of memory currently free for use, and
the amount of memory allocated to active processes.
EXAMPLE
Console#show memory
Status Bytes
------ ----------
Free 50917376
Used 83300352
Total 134217728
Console#
show process cpu This command shows the CPU utilization parameters.
COMMAND MODE
Normal Exec, Privileged Exec
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