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Content Addressable Memory (CAM)
Content addressable memory (CAM) commands are supported on the Dell Networking operating software on the platform.
NOTE: If you are using these features for the first time, contact Dell Networking Technical Assistance Center (TAC) for
guidance.
Topics:
• CAM Profile Commands
CAM Profile Commands
The CAM profiling feature allows you to partition the CAM to best suit your application. For example:
● Configure more Layer 2 forwarding information base (FIB) entries when the system is deployed as a switch.
●
Configure more Layer 3 FIB entries when the system is deployed as a router.
● Configure more access control lists (ACLs).
● Optimize the virtual local area network (VLAN) ACL Group feature, which permits group VLANs for IP egress ACLs.
Important Points to Remember
● The Dell Networking Operating System (OS) versions supports CAM allocations.
● The CAM configuration is applied to the entire system when you use the CONFIGURATION mode commands. Save the
running-configuration to affect the change.
● When budgeting your CAM allocations for ACLs and quality of service (QoS) configurations, remember that ACL and QoS
rules might consume more than one CAM entry depending on complexity. For example, transmission control protocol (TCP)
and user datagram protocol (UDP) rules with port range options might require more than one CAM entry.
● After you install a secondary RPM, copy the running-configuration to the startup-configuration so that the new RPM has the
correct CAM profile.
● You MUST save your changes and reboot the system for CAM profiling or allocations to take effect.
cam-acl (Configuration)
Select the default CAM allocation settings or reconfigure a new CAM allocation for Layer 2, IPv4, and IPv6 ACLs, Layer 2 and
Layer 3 (IPv4) QoS, Layer 2 Protocol Tunneling (L2PT), IP and MAC source address validation for DHCP, Ethernet Connectivity
Fault Management (CFM) ACLs, and Policy-based Routing (PBR).
Syntax
cam-acl {default | l2acl number ipv4acl number ipv6acl number ipv4qos
number l2qos number l2pt number ipmacacl number [vman-qos | vman-qos—
dual— number | vman-qos—dual—fp number] ipv4pbr number} ecfmacl number
[nlbclusteraclnumber]fcoeacl number iscsioptacl number}
Parameters
default Use the default CAM profile settings and set the CAM as follows:
● L3 ACL (ipv4acl): 4
● L2 ACL(l2acl): 5
● IPv6 L3 ACL (ipv6acl): 0
● L3 QoS (ipv4qos): 1
● L2 QoS (l2qos): 1
● L2PT (L2PT): 0
● MAC ACL (IpMacAcl): 0
● VmanDualQos: 0
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