Deployment Guide

Configuring ACL CAM Carving on 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 Z9500 differ from the commands used for other 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 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 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 .

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