Deployment Guide

Table Of Contents
show hardware forwarding-table mode
DellEMC#show hardware forwarding-table mode
Current Settings Next Boot Settings
Mode : Default scaled-l3-hosts
L2 MAC Entries : 72K 8K
L3 Host Entries : 72K 136K
L3 Route Entries : 16K 16K
IPv6 CAM ACL Region
The IPv6 ACL CAM region is triple-wide in the platform. You can change the IPv6 ACL region to be double-wide mode. This
results in a better scale of the IPv6 ACL entries.
The IPV6 ACL CAM region can also be shared with the IPv4 QOS CAM region. You can partition the CAM as per the sharing
requirements and both IPV6 ACLs and IPV4 QOS entries are installed on the same CAM region.
Important Points to Remember
When you convert the IPv6 ACL CAM region to double-wide, you can configure only up to 64 bit masks for IPv6 source and
destination addresses in the IPv6 ACL rules. The system rejects the host keyword when you write your ACL rules.
When you convert the IPv6 ACL CAM region to double-wide, carve the IPv6 CAM region in multiples of two. You can use a
maximum value of eight.
This feature is supported for IPv6 user ACLs only in the ingress direction
After enabling the IPv6 ACL optimization and CAM sharing features, reload the system for the CAM sharing feature to work.
If you do not reload, the system does not allow you to boot into the warmboot mode.
If you enable the IPv6 ACL optimization and CAM sharing features, the system does not allow you to downgrade to Dell
networking version 9.13(x.x) or earlier versions via warmboot.
When CAM sharing is enabled, one of IPv4 QoS or IPv6 ACL CAM regions must be 0. The other non-zero CAM region is used
for sharing between the entries.
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.
Content Addressable Memory (CAM)
241