Reference Guide

Content Addressable Memory (CAM) | 453
The 18-megabit user configurable CAM is divided into multiple regions such as
Layer 2 FIB, Layer 3 FIB, IPv4Flow, IPv4 Ingress ACL, etc. The Layer 2 ACL
region is further sub-divided into 6 regions: Sysflow, L2ACL, PVST, QoS, L2PT,
FRRP.
You can change the amount of CAM space, in percentage, allocated to each
sub-region. The amount of space that you can distribute to the sub-partitions is equal
to the amount of CAM space that the selected CAM profile allocates to the Layer 2
ACL partition. FTOS requires that you specify the amount of CAM space for all
sub-partitions and that the sum of all sub-partitions is 100%.
Like CAM profiles, you can configure the Layer 2 ACL partition from EXEC
Privilege mode or CONFIGURATION mode.
cam l2acl (EXEC Privilege)
e
t
Re-allocate the amount of space, in percentage, for each Layer 2 ACL CAM
sub-partition.
This command is deprecated as of FTOS 8.3.1.0
Syntax
cam l2acl
{chassis all | linecard number} {default | system-flow percentage l2acl percentage
pvst percentage qos percentage l2pt percentage frrp percentage}
Command Modes
EXEC Privilege
Command
History
cam-l2acl (CONFIGURATION)
e
t
Re-allocate the amount of space, in percentage, for each Layer 2 ACL CAM
sub-partition.
Syntax
cam-l2acl
{default | system-flow percentage l2acl percentage pvst percentage qos percentage
l2pt percentage frrp percentage}
Parameters
Version 8.3.1.0 COMMAND DEPRECATED
Version 7.7.1.0 Introduced on E-Series
default
Enter this keyword to reset the Layer 2 ACL CAM sub-partition space
allocations to the default values (Sysflow: 6, L2ACL: 14, PVST: 50,
QoS: 12, L2PT: 13, FRRP: 5).
system-flow percentage
Allocate a percentage of the Layer 2 ACL CAM space for system
flow entries. Enter the keyword
system-flow and specify the
percentage.
Range: 5 to 100
l2acl percentage
Allocate a percentage of the Layer 2 ACL CAM space for Layer 2
ACL entries. Enter the keyword
l2acl and specify the percentage.
Range: 5 to 95