Administrator Guide

Table Of Contents
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
and Layer 3 forwarding information, access-lists (ACLs), flows, and routing policies.
Topics:
CAM Allocation
Test CAM Usage
View CAM Profiles
View CAM-ACL Settings
View CAM Usage
CAM Optimization
Troubleshoot CAM Profiling
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 etc on the S-Series by using 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.
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 10. 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
10
Content Addressable Memory (CAM) 189