Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 910)

860 Brocade 6910 Ethernet Access Switch Configuration Guide
53-1002581-01
Access Control Lists
41
Showing TCAM Utilization
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 References
• “show access-list tcam-utilization” on page 57
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, QinQ, MAC-based VLANs, VLAN translation, 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.
Parameters
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.
Interface
To show information on TCAM utilization:
1. Click Security, ACL.
2. Select Configure ACL from the Step list.
3. Select Show TCAM from the Action list.
FIGURE 199 Showing TCAM Utilization