Content Addressable Memory (Cam); Cam Allocation - Dell S4820T Configuration Manual

Content Addressable Memory (CAM)

CAM is a type of memory that stores information in the form of a lookup table. On Dell Networking
systems, CAM stores Layer 2 (L2) and Layer 3 (L3) forwarding information, access-lists (ACLs), flows, and
routing policies.

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 13 FP
blocks.
The following table lists the default CAM allocation settings.
NOTE: There are 16 FP blocks, but the system flow requires three blocks that cannot be reallocated.
Table 12. Default Cam Allocation Settings
CAM Allocation
L2Acl
IPV4Acl
Ipv6Acl
Ipv4Qos
L2Qos
L2PT
IpMacAcl
VmanQos
VmanDualQos
EcfmAcl
nlbclusteracl
FcoeAcl
iscsiOptAcl
ipv4pbr
Content Addressable Memory (CAM)
Setting
6
4
0
2
1
0
0
0
0
0
0
0
0
0
11
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