Administrator Guide

• When CAM sharing is enabled, 32 FP entries are allocated to IPv4 QoS region by default and the remaining entries are shared
according to the configured percentage values.
• When CAM sharing is enabled, a policy map with a single rule match ip dscp is installed in the DSCP table and no FP entries are
used. A combination of multiple rules including match ip dscp in a policy map or a single rule other than match ip dscp are
installed in CAM similar to the existing behavior.
• When CAM sharing is enabled, the match ipv6 dscp rule is not supported
Convert the IPv6 ACL CAM to Double-Wide
To convert the IPv6 ACL CAM to double-wide, follow these steps:
1. Use the following command.
CONFIGURATION mode
feature ipv6acloptimized
You can use the no feature ipv6acloptimized command to disable this feature.
2. Configure the cam-acl such that the IPV6 ACL is in multiples of 2.
cam-acl l2acl 0 ipv4acl 0 ipv6acl 8 ipv4qos 0 l2qos 0 l2pt 0 ipmacacl 1 vman-qos 0
3. Save the running-configuration.
EXEC Privilege mode
copy running-config startup-config
4. Reload the system.
EXEC Privilege mode
reload
If the ipv6acl option of the cam-acl command is not in multiples of two, the system does not allow reload.
Sharing CAM space between IPv4 QoS and IPv6 ACLs
To share CAM space between IPv4 QoS and IPv6 ACLs, follow these steps.
1. Convert the IPv6 ACL CAM to double-wide.
CONFIGURATION mode
feature ipv6acloptimized
You can use the no feature ipv6acloptimized command to disable this feature.
2. Configure the cam-acl such that the IPV6 ACL is in multiples of 2.
cam-acl l2acl 0 ipv4acl 0 ipv6acl 8 ipv4qos 0 l2qos 0 l2pt 0 ipmacacl 1 vman-qos 0
Set either the ipv4qos or ipv6acl option to zero.
3. Use the following command.
CONFIGURATION mode
cam-sharing ipv4qos value ipv6acl value
Enter the value in percentage.
4. Save the running-configuration.
EXEC Privilege mode
copy running-config startup-config
5. Reload the system.
EXEC Privilege mode
reload
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Content Addressable Memory (CAM)