Deployment Guide

Configuring ACL CAM Carving on the S4810,

S4820T, S6000, S5000, and MXL switch

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 S4810, S4820T, S6000, S5000, and MXL switches 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 (20 entries are reserved for internal purposes from the 256 available flows, leaving

242 entries for use by OpenFlow). For S6000, entering a 4 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).

• 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). For S6000, entering an 8 allocates space for up to 998 flow entries (14 entries are reserved for

internal purposes from the 1012 available flows, leaving 998 entries for use by OpenFlow).

The following sample S4810 configuration reserves 512 entries for OpenFlow:

Dell(conf)#cam-acl l2acl 3 ipv4acl 2 ipv6acl 0 ipv4qos 2 l2qos 2 l2pt 0 ipmacacl 0 vman-qos

0 ecfmacl 0 openflow 8 fcoeacl 0 iscsioptacl 0

2 Enter a value for cam-acl-vlan.

Select one of the following values for cam-acl-vlan:

• 0 (default): No space is allocated for OpenFlow. Change this value to 1 to enable OpenFlow.

• 1: Enables OpenFlow.

The following sample configuration shows a value of 1 for cam-acl-vlan:

Dell(conf)#cam-acl-vlan vlanopenflow 1 vlaniscsi 1

3 Reboot the switch after changing the cam-acl and cam-vlan-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.

Configuring ACL CAM Carving on the S4810, S4820T, S6000, S5000, and MXL switch 17