Reference Guide

268 | Content Addressable Memory (CAM)
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Select CAM Profiles
A CAM profile is selected in CONFIGURATION mode. The CAM profile is applied to entire system,
however, you must save the running-configuration to affect the change.
All components in the chassis must have the same CAM profile and microcode. The profile and microcode
loaded on the primary RPM determines the profile that is required on all other chassis components.
• If a newly installed line card has a profile different from the primary RPM, the card reboots so that it
can load the proper profile.
• If a the standby RPM has a profile different from the primary RPM, the card reboots so that it can load
the proper profile.
To change the CAM profile on the entire system:
CAM Allocation
User Configurable CAM Allocations is available on platforms: c s
Allocate space for IPV4 ACLs and QoS regions, and IPv6 6 ACLs and QoS regions on the C-Series and
S-Series by using the
cam-acl command in CONFIGURATION mode.
The CAM space is allotted in FP blocks. The total space allocated must equal 13 FP blocks. Note that there
are 16 FP blocks, but the System Flow requires 3 blocks that cannot be reallocated. The default CAM
Allocation settings are:
• L3 ACL (ipv4acl): 6
• L2 ACL(l2acl): 5
• IPv6 L3 ACL (ipv6acl): 0
• L3 QoS (ipv4qos): 1
• L2 QoS (l2qos): 1
• L2PT (l2pt): 1
• MAC ACLs (ipmacacl): 2
Step Task Command Syntax Command Mode
1
Select a CAM profile.
cam-profile profile microcode
microcode
CONFIGURATION
2
Save the running-configuration.
copy running-config startup-config
EXEC Privilege
3
Verify that the new CAM profile will be
written to the CAM on the next boot.
show cam-profile summary
EXEC Privilege
4
Reload the system.
reload
EXEC Privilege
S4820T