# LTE Forbidden Tracking Area Configuration Mode Commands

The LTE Forbidden Tracking Area Configuration Mode is used to create and manage forbidden tracking area code (TAC) configurations.

IMPORTANT:

The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).
end

Exits the current configuration mode and returns to the Exec mode.
Product:

All
Privilege:

Security Administrator, Administrator
Syntax

    end

Usage:

Use this command to return to the Exec mode.
exit

Exits the current mode and returns to the parent configuration mode.
Product:

All
Privilege:

Security Administrator, Administrator
Syntax

    exit

Usage:

Use this command to return to the parent configuration mode.
tac

Configures a tracking area code (TAC) or area codes where a UE, associated with this LTE policy, is restricted from participating in a handover scenario.
Platform:

ASR 5000
Product:

MME
Privilege:

Administrator
Syntax

    [ no ] tac area_code

no

Removes a configured forbidden handover area code or area codes from this policy. If no tracking area code is specified, then all tracking area codes are removed.
area_code

Specifies a tracking area code or area codes from which UEs are restricted from participating in a handover as an integer from 0 to 65535. Multiple area codes can be entered (up to 128 in a single line, separated by spaces).
Usage:

Use this command to configure tracking area codes that will be forbidden to UEs associated with this LTE policy.
Example:
The following command configures two tracking area codes (1, 2, 3, 4, 5, 6, 7, 8) where a UE, associated with this LTE policy, is restricted from participating in a handover scenario:

    tac 1 2 3 4 5 6 7 8