Administrator Guide

Content Addressable Memory (CAM)
CAM Allocation
CAM Allocation for Ingress
To allocate the space for regions such has L2 ingress ACL, IPV4 ingress ACL, IPV6 ingress ACL, IPV4 QoS, L2 QoS, PBR, VRF ACL, and
so forth, use the cam-acl command in CONFIGURATION mode.
The CAM space is allotted in field processor (FP) blocks. The total space allocated must equal FP blocks.
The following table lists the default CAM allocation settings.
NOTE: There are FP blocks, but the system flow requires three blocks that cannot be reallocated.
The following table displays the default CAM allocation settings. To display the default CAM allocation, enter the show cam-acl
command.
Table 12. Default Cam Allocation Settings
CAM Allocation Setting
L2Acl 6
IPV4Acl 4
Ipv6Acl 0
Ipv4Qos 2
L2Qos 1
L2PT 0
IpMacAcl 0
VmanQos 0
VmanDualQos 0
EcfmAcl 0
nlbclusteracl 0
FcoeAcl 0
iscsiOptAcl 0
ipv4pbr 0
vrfv4Acl 0
Openflow 0
fedgovacl 0
NOTE: When you reconfigure 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 configure 256 entries. Select 2 to configure 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.
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216 Content Addressable Memory (CAM)