User-Configurable Cam Allocation; Allocating Cam For Ingress Acls On The Port Extender - Dell C9000 Series Networking Configuration Manual

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User-Configurable CAM Allocation

User-configurable content-addressable memory (CAM) allows you to specify the amount of memory space

that you want to allocate for ACLs.

To allocate ACL CAM, use the cam-acl command in CONFIGURATION mode. For information about how to

allocate CAM for ACL VLANs, see

The CAM space is allotted in filter processor (FP) blocks. The total amount of space allowed is 12 FP Blocks.

System flow requires four blocks; these blocks cannot be reallocated.

The ipv4acl profile range is from 0 to 8. When configuring space foripv6acl, the total number of Blocks

must equal 12. The ipv6acl allocation must be a factor of 2 (2, 4). If allocation values are not entered for the

CAM regions, the value is 0.

Save the new CAM settings to the startup-config (use write-mem or copy run start) then reload the

system for the new settings to take effect.

Allocating CAM for Ingress ACLs on the Port

To allocate Content Addressable Memory (CAM) for ingress ACLs on the port extenders.

You can re-allocate memory space for ACLs on the port extender by using the cam-acl-pe l2acl

command in CONFIGURATION mode. CAM space is allotted in FP blocks. The total allocated CAM space

must equal 12 FP blocks. Note that there are 16 FP blocks, but the System Flow requires 4 blocks that cannot

be reallocated.

The default CAM allocation settings for ingress ACL and QoS regions are the following:

nlbclusteracl:

Select the 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, and Policy-based Routing (PBR). Save the

new CAM settings to the startup-config (write-memor copy run start) then reload the system for the

Allocating ACL VLAN

Access Control Lists (ACLs)