TCAM Allocation

Use the TCAM Allocation Settings page to customize TCAM allocation. TCAM entries are divided into the following groups:

TCAM allocation can be modified incorrectly, in one of the following ways:

If you change the TCAM allocation incorrectly, an error message is displayed. If your TCAM allocation is feasible, a message is displayed that an automatic reboot will be performed with the new settings.

  1. Click Administration > TCAM Allocation Settings. The TCAM Allocation Settings page opens.
  2. This page displays the following blocks:

    • Reserved TCAM Size--Displays the current number of available TCAM entries.
    • Actual TCAM Allocation--Displays the current number of TCAM entries that have been used and the number still available.
  3. To change the TCAM allocation for IP entries, enter the new value(s) in the New Settings block.
  4. You must save your current configuration before changing the TCAM Allocation Settings.

    The new TCAM Allocation Settings must follow the rules below.

    • For Max Number of IPv4 Static Routes: New value must be greater than or equal to the current used
    • For Max Number of IP Interfaces: New value must be greater than or equal to the current used
    • New Max Number of IPv4 Static Routes + 2*Max Number of IP Interfaces + Max Number of IP Host <= Total number of TCAM entries - Total number of non-IP entries used
    • The available number of non-IP entries after your change has been made is displayed.

  5. Save the new settings by clicking on the Save link. This checks the feasibility of the TCAM allocation. If it is incorrect, an error message is displayed. If it is correct, the allocation is copied to the Running Configuration file.
  6. Click Apply and an automatic reboot is performed using the new settings.