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Content Addressable Memory (CAM)
Content addressable memory (CAM) is a type of memory that stores information in the form of a lookup
table.
On Dell Networking systems, CAM stores Layer 2 and Layer 3 forwarding information, access-lists (ACLs),
flows, and routing policies.
CAM Allocation
Allocate space for IPV4 ACLs and quality of service (QoS) regions by using the cam-acl command in
CONFIGURATION mode.
The CAM space is allotted in filter processor (FP) blocks. The total space allocated must equal 13 FP
blocks.
NOTE: There are 16 FP blocks, but the system flow requires three blocks that cannot be reallocated.
The following table lists the default CAM allocation settings.
Table 8. Default Cam Allocation Settings
CAM Allocation Setting
L3 ACL (ipv4acl) 2
L2 ACL(l2acl) 2
IPv6 L3 ACL (ipv6acl) 0
L3 QoS (ipv4qos) 2
L2 QoS (l2qos) 0
L2PT (l2pt) 0
MAC ACLs (ipmacacl) 0
ECFMACL (ecfmacl) 0
nlbclusteracl 2
FCOEACL (fcoeacl) 4
ISCSIOPTACL (iscsioptacl) 2
VMAN QoS (vman-qos) 0
VMAN Dual QoS (vman-dual-qos) 0
240
Content Addressable Memory (CAM)