Users Guide

Unied Forwarding Table Modes
Unied Forwarding Table (UFT) consolidates the resources of several search tables (Layer 2, Layer 3 Hosts, and Layer 3 Route [Longest
Prex Match — LPM]) into a single exible resource. The system supports several UFT modes to extract the forwarding tables, as
required. By default, Dell Networking OS initializes the table sizes to UFT mode 2 prole, as it provides a reasonable shared memory for all
the tables. The other supported UFT modes are scaled-l3–hosts (UFT mode 3) and scaled-l3–routes (UFT mode 4).
Important Points to Remember
• All line cards/Stack Members within a single system must have the same UFT mode proles. This prole must match the system UFT
mode prole (the prole on the primary route processor module [RPM]/ Master Unit of the Stack).
• Apply the UFT mode conguration to the entire system when you use the CONFIGURATION mode commands. Save the running-
conguration to aect the change.
• Save the changes and reboot the system for UFT mode proling to take eect.
hardware forwarding-table mode
Select a mode to initialize the maximum scalability size for L2 MAC table or L3 Host table or L3 Route table.
Syntax
hardware forwarding-table mode {scaled-l3- hosts | scaled-l3-routes}
Parameters
scaled-l3–
hosts
Enter the keywords scaled-l3–hosts to select the forwarding table mode for scaling
l3 host entries.
scaled-l3–
routes
Enter the keywords scaled-l3–routes to select the forwarding table mode for
scaling l3 route entries.
Defaults UFT mode 2
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.7(0.0) Introduced on the S6000, S6000-ON, and Z9500 switch..
Usage Information This command takes eect only after reboot.
Related Commands show hardware forwarding-table mode — displays the hardware forwarding table mode in the current boot and in
the next boot.
show hardware forwarding-table mode
Display the hardware forwarding table mode in the current boot and in the next boot.
Syntax
show hardware forwarding-table mode
458 Content Addressable Memory (CAM)