Deployment Guide

Configuring ACL CAM Carving on Z9000

and Z9500

Dell Networking switches can operate in Hybrid mode, which enables OpenFlow and legacy functionality

on the same switch. By default, access control list content addressable memory (ACL CAM) space is not

allocated for OpenFlow. To enable OpenFlow, reserve CAM space for OpenFlow using the following

commands. The amount of CAM space that you allocate for OpenFlow determines the number of

available ACL entries. For more information on CAM, refer to the

Content Addressable Memory (CAM)

chapter in the FTOS Configuration Guide.

NOTE: The commands to allocate CAM space for OpenFlow on the Z9000 and Z9500 differ from

the commands used for the S4810, S4820T, S6000, S5000, and MXL switches.

1. Enter a value for cam-acl.

Select one of the following values for cam-acl:

• 0 (default): No space is allocated for OpenFlow. Change this value to four or eight to enable

OpenFlow.

• 4: Allocates space for up to 242 flow entries (14 entries are reserved for internal purposes from

the 256 available flows, leaving 242 entries for use by OpenFlow).

• 8: Allocates space for up to 498 flow entries (14 entries are reserved for internal purposes from

the 512 available flows, leaving 498 entries for use by OpenFlow).

The following sample Z9000 and Z9500 configuration reserves 512 entries for OpenFlow:

Dell(conf)# cam-acl l2acl 2 ipv4acl 2 ipv6acl 0 ipv4qos 4 l2qos 1 l2pt 0

ipmacacl 0 vman-qos 0 ecfmacl 0 openflow 8

NOTE: For Z9000 and Z9500, the cam-acl-vlan value is set to 1 (enabled) by default; no

additional configuration is required.

2. Reboot the switch after changing the cam-acl values. If you do not reboot the switch, the

configuration changes do not take effect.

NOTE:

To upgrade any configuration changes that have changed the NVRAM content, if you enable

BMP 3.0, use the reload conditional nvram-cfg-change command to perform a reload

on the chassis .