Concept Guide

NOTE: When you recongure CAM allocation, use the nlbclusteracl number command to change the number of NLB ARP
entries. The range is from 0 to 2. The default value is 0. At the default value of 0, eight NLB ARP entries are available for use.
This platform supports upto 512 CAM entries. Select 1 to congure 256 entries. Select 2 to congure 1024 entries. Even though
you can perform CAM carving to allocate the maximum number of NLB entries, Dell EMC Networking recommends you to use a
maximum of 64 NLB ARP entries.
The following additional CAM allocation settings are supported.
Table 13. Additional Default CAM Allocation Settings
Additional CAM Allocation Setting
FCoE ACL (fcoeacl) 0
ISCSI Opt ACL (iscsioptacl) 0
You must enter the ipv6acl and vman-dual-qos allocations as a factor of 2 (2, 4, 6, 8, 10). All other prole allocations can use either
even or odd numbered ranges.
NOTE: You can only have one odd number of blocks in the CLI conguration; the other blocks must be in factors of 2. For
example, a CLI conguration of 5+4+2+1+1 blocks is not supported; a conguration of 6+4+2+1 blocks is supported.
For the new settings to take eect, you must save the new CAM settings to the startup-cong (write-mem or copy run start)
then reload the system for the new settings to take eect.
CAM Allocation for Egress
To allocate the space for egress L2, IPV4, and IPV6 ACL, use the cam-acl-egress command. The total number of available FP blocks is
4. Allocate at least one group of L2ACL and IPV4 ACL.
DellEMC(conf)#do show cam-acl-egress
-- Chassis Egress Cam ACL --
Current Settings(in block sizes)
1 block = 256 entries
L2Acl : 1
Ipv4Acl : 1
Ipv6Acl : 2
-- Stack unit 1 --
Current Settings(in block sizes)
L2Acl : 1
Ipv4Acl : 1
Ipv6Acl : 2
DellEMC(conf)#
1 Select a cam-acl action.
CONFIGURATION mode
cam-acl [default | l2acl]
NOTE
: Selecting default resets the CAM entries to the default settings. Select l2acl to allocate the desired space for all
other regions.
2 Enter the number of FP blocks for each region.
EXEC Privilege mode
cam-acl {default | l2acl number ipv4acl number ipv6acl number ipv4qos number l2qos number
l2pt number ipmacacl number vman-qos | vman-dual-qos number ecfmacl number nlbcluster number
ipv4pbr number openflow number | fcoe number iscsioptacl number [vrfv4acl number]
Content Addressable Memory (CAM)
253