CLI Reference Guide-R05

Chapter 4 | System Management Commands
System Status
– 102 –
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 entries (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 : 1024
Free Policy Control Entries : 1016
Entries Used by System : 118
Entries Used by User : 4294967186
TCAM Utilization : 0.78%
Console#
show alarm This command shows the name assigned to the predefined alarms.
Syntax
show alarm input name unit alarm-input-index
unit - The parameter only applies to stackable switches. (Range: 1)
alarm-input-index - Index of signal on the Alarm Input port.
(Range: 1-4)
show tech-support Displays a detailed list of system settings designed to help
technical support resolve configuration or functional
problems
PE
show users Shows all active console and Telnet sessions, including user
name, idle time, and IP address of Telnet clients
NE, PE
show version Displays version information for the system NE, PE
show watchdog Shows if watchdog debugging is enabled PE
watchdog software Monitors key processes, and automatically reboots the
system if any of these processes are not responding
correctly
PE
Table 11: System Status Commands (Continued)
Command Function Mode