Dell Force10 S55T S55 Configuration Guide FTOS 8.3.5.3 - Page 219

10 Content Addressable Memory c e s Content Addressable Memory is supported on platforms t • Content Addressable Memory on page 219 • CAM Profiles on page 220 • Microcode on page 221 • CAM Profiling for ACLs on page 222 • When to Use CAM Profiling on page 225 • Important Points to Remember on page 225 • Select CAM Profiles on page 225 • CAM Allocation on page 226 • Test CAM Usage on page 227 • View CAM Profiles on page 228 • View CAM-ACL settings on page 228 • View CAM-ACL settings on page 228 • CAM Optimization on page 230 • Applications for CAM Profiling on page 230 • Troubleshoot CAM Profiling on page 231 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. Content Addressable Memory | 219