DELL S50V User Manual

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IP Access Control Lists (ACL), Prefix Lists, and Route-maps

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Allocate space for IPV6 ACLs on the C-Series by using the 

 command in CONFIGURATION 

mode.

The CAM space is allotted in FP blocks. The total space allocated must equal 13 FP blocks. Note that there 
are 16 FP blocks, but the System Flow requires 3 blocks that cannot be reallocated. The default CAM 
Allocation settings on a C-Series matching are:

•

L3 ACL (ipv4acl): 6

•

L2 ACL(l2acl) : 5

•

IPv6 L3 ACL (ipv6acl): 0

•

L3 QoS (ipv4qos): 1

•

L2 QoS (l2qos): 1

The 

 allocation must be entered as a factor of 2 (2, 4, 6, 8, 10). All other profile allocations can use 

either even or odd numbered ranges.

You must save the new CAM settings to the startup-config (

) then reload the 

system for the new settings to take effect.

CAM optimization

CAM optimization

 is supported on platforms 

c s

When this command is enabled, if a Policy Map containing classification rules (ACL and/or dscp/
ip-precedence rules) is applied to more than one physical interface on the same port-pipe, only a single 
copy of the policy is written (only 1 FP entry will be used). When the command is disabled, the system 
behaves as described in this chapter.

Test CAM Usage

The 

test cam-usage

 command is supported on platforms 

c e s

 

This command applies to both IPv4 and IPv6 CAM profiles, but is best used when verifying QoS 
optimization for IPv6 ACLs. 

Use this command to determine whether sufficient ACL CAM space is available to enable a service-policy. 
Create a Class Map with all required ACL rules, then execute the 

 command in Privilege 

mode to verify the actual CAM space required. 

executing the command. The status column indicates whether or not the policy can be enabled.