Administrator Guide

DELL#test cam-usage service-policy input L3 pe-unit 0 stack-unit 0 port-set 0
PE Unit|Stack-unit|Portpipe|CAM Partition|Available CAM|Estimated CAM per Port|Status
-------------------------------------------------------------------------------------
0 | 0 | 0 | L3QOS | 488 0 | Allowed
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
Allocating ACL VLAN CAM.
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 Extender
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:
L2Acl : 5
Ipv4Acl : 4
Ipv6Acl : 0
Ipv4Qos : 2
L2Qos : 1
L2PT : 0
IpMacAcl : 0
VmanQos : 0
EcfmAcl : 0
FcoeAcl : 0
iscsiOptAcl : 0
ipv4pbr : 0
vrfv4Acl : 0
Openflow : 0
fedgovacl : 0
nlbclusteracl: 0
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 new settings to take effect. 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. Ranges for the CAM profiles are from 1 to 10, except for the ipv6acl profile which is from 0
to 4. 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.
1. Enter a CAM allocation action to perform on ingress ACLs. Enter the number of FP blocks for each region. Separate each keyword and
number with a blank space. The total CAM space allocated must equal 12. When configuring space foripv6acl, the total number of
Blocks must be in multiples of 2.
CONFIGURATION mode
cam-acl-pe [default| l2acl number ipv4acl number ipv6acl number ipv4qos number l2qos number
ipmacacl number ipv4pbr number]
NOTE:
Selecting default resets the CAM entries to the default settings. Select l2acl to re-allocate memory space
for ingress ACL and QoS regions.
104 Access Control Lists (ACLs)