Concept Guide
Allocating FP Blocks for VLAN Processes
The VLAN ContentAware Processor (VCAP) application is a preingress CAP that modies the VLAN settings before packets are forwarded.
To support the ACL CAM optimization functionality, the CAM carving feature is enhanced. A total of four VACP groups are present, of
which two are for xed groups and the other two are for dynamic groups. Out of the total of two dynamic groups, you can allocate zero,
one, or two FP blocks to iSCSI Counters, OpenFlow and ACL Optimization.
You can congure only two of these features at a time.
• To allocate the number of FP blocks for VLAN open ow operations, use the cam-acl-vlan vlanopenflow <0-2> command.
• To allocate the number of FP blocks for VLAN iSCSI counters, use the cam-acl-vlan vlaniscsi <0-2> command.
• To allocate the number of FP blocks for ACL VLAN optimization feature, use the cam-acl-vlan vlanaclopt <0-2> command.
To reset the number of FP blocks to the default, use the no version of these commands. By default, zero groups are allocated for the ACL
in VCAP. ACL VLAN groups or CAM optimization is not enabled by default, and you need to allocate the slices for CAM optimization.
To display the number of FP blocks that is allocated for the dierent VLAN services, you can use the show cam-acl-vlan command.
After CAM conguration for ACL VLAN groups is performed, reboot the system to enable the settings to be stored in nonvolatile storage.
During the initialization of CAM, the chassis manager reads the NVRAM and allocates the dynamic VCAP regions.
Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM) 111