Reference Guide

Content Addressable Memory (CAM) | 255

Content Addressable Memory (CAM)

Content Addressable Memory (CAM) is supported on platforms: e

c s z

• Content Addressable Memory

• CAM Profiles

• Microcode

• CAM Profiling for ACLs

• When to Use CAM Profiling

• Important Points to Remember

• Select CAM Profiles

• CAM Allocation

• Test CAM Usage

• View CAM Profiles

• View CAM-ACL settings

• Configure IPv4Flow Sub-partitions

• Configure Ingress Layer 2 ACL Sub-partitions

• Return to the Default CAM Configuration

• CAM Optimization

• Applications for CAM Profiling

• Troubleshoot CAM Profiling

Content Addressable Memory

Content Addressable Memory (CAM) is a type of memory that stores information in the form of a lookup

table. On Dell Force10 systems, the CAM stores Layer 2 and Layer 3 forwarding information, access-lists

(ACL), flows, and routing policies. On Dell Force10 systems, there are one or two CAM (Dual-CAM)

modules per port-pipe depending on the type of line card.

• The ExaScale EH and EJ series line cards are single-CAM line cards that support 10M and 40M CAM

for storing the lookup information.

• The TeraScale EG-series line cards are dual-CAM and use two 18 Megabit CAM modules with a

dedicated 512 IPv4 Forwarding Information Base (FIB), and flexible CAM allocations for Layer2,

FIB, and ACLs.

• Either ExaScale 10G or 40G CAM line cards can be used in a system.