LevelOne GTL-2691 - Manual (Page 355)

C HAPTER 13 | Security Measures
Access Control Lists
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S HOWING TCAM
U TILIZATION
Use the Security > ACL (Configure ACL - Show TCAM) page to show
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.
CLI R EFERENCES
◆ "show access-list tcam-utilization" on page 769
C OMMAND U SAGE
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.
P ARAMETERS
These parameters are displayed:
◆ Total Policy Control Entries – The number policy control entries in
use.
◆ Free Policy Control Entries – The number of policy control entries
available for use.
◆ Entries Used by System – The number of policy control entries used
by the operating system.
◆ Entries Used by User – The number of policy control entries used by
configuration settings, such as access control lists.
◆ TCAM Utilization – The overall percentage of TCAM in use.
W EB I NTERFACE
To show information on TCAM utilization:
1. Click Security, ACL.
2. Select Configure ACL from the Step list.
3. Select Show TCM from the Action list.
Figure 182: Showing TCAM Utilization