290 | Content Addressable Memoryw w w . d e l l . c o m | s u p p o r t . d e l l . c o m The ipv6acl and vman-dual-qos allocations must be entered as a factor of 2 (2, 4, 6, 8, 10). All other profileallocations can use either even or odd numbered ranges.You must save the new CAM settings to the startup-config (write-mem or copy run start) then reload thesystem for the new settings to take effect.To configure the IPv4 and IPv6 ACLs and Qos regions on the entire system:Test CAM UsageThe test cam-usage command is supported on platforms c e sThis command applies to both IPv4 and IPv6 CAM profiles, but is best used when verifying QoSoptimization for IPv6 ACLs.Use this command to determine whether sufficient ACL CAM space is available to enable a service-policy.Create a Class Map with all required ACL rules, then execute the test cam-usage command in Privilegemode to verify the actual CAM space required. Figure 11-3 gives a sample of the output shown whenexecuting the command. The status column indicates whether or not the policy can be enabled.Figure 11-3. Command Example: test cam-usage (C-Series)Step Task Command Syntax Command Mode1 Select a cam-acl action cam-acl [default | l2acl] CONFIGURATIONNote: Selecting default resets the CAM entries to the default settings. Select l2acl to allocate spacefor the ACLs, and QoS regions.2 Enter the number of FP blocks for eachregion.l2acl number ipv4acl number ipv6aclnumber, ipv4qos number l2qosnumber, l2pt number ipmacaclnumber ecfmacl number [vman-qos |vman-dual-qos numberEXEC Privilege3 Verify that the new settings will be writtento the CAM on the next boot. show cam-acl EXEC Privilege4 Reload the system. reload EXEC PrivilegeFTOS#test cam-usage service-policy input TestPolicy linecard allLinecard | Portpipe | CAM Partition | Available CAM | Estimated CAM per Port | Status------------------------------------------------------------------------------------------2 | 1 | IPv4Flow | 232 | 0 | Allowed2 | 1 | IPv6Flow | 0 | 0 | Allowed4 | 0 | IPv4Flow | 232 | 0 | Allowed4 | 0 | IPv6Flow | 0 | 0 | AllowedFTOS#
