Configuring Tracking And Failure Detection - Cisco 4700M Administration Manual

Chapter 6 Configuring Redundant ACEs
Caution
Detailed Steps
Command
Step 1
config
Example:
host1/C1# config
host1/C1#(config)#
Step 2
ft auto-sync {running-config |
startup-config}
Example:
host1/C1(config) ft auto-sync
running-config
no ft auto-sync {running-config |
startup-config}
Example:
host1/C1(config) no ft auto-sync
running-config

Configuring Tracking and Failure Detection

This section describes the tracking and failure detection feature of the ACE. This feature allows you to
designate certain network items as critical so that if one or more items fail, the ACE reduces the priority
of the associated active FT group accordingly. If the priority of the active FT group falls below the
priority of the corresponding FT group on the standby, a switchover occurs.
OL-20823-01
Do not enter the no inservice command followed by the inservice command on the active
context of an FT group when the standby context is in the STANDBY_COLD state. Doing so
may cause the standby context running-configuration file to overwrite the active context
running-configuration file.
To copy the certificates and keys to the standby context, you must export the certificates and keys
from the active context to an FTP or TFTP server using the crypto export command, and then
import the certificates and keys to the standby context using the crypto import command. For more
information about importing and exporting certificates and keys, see the Cisco 4700 Series
Application Control Engine Appliance SSL Configuration Guide.
To return the standby context to the STANDBY_HOT state in this case, ensure that you have
imported the necessary SSL certificates and keys to the standby context, and then perform a bulk
sync of the active context configuration by entering the following commands in configuration mode
in the active context of the FT group:
1. no ft auto-sync running-config
ft auto-sync running-config
2.
Cisco 4700 Series Application Control Engine Appliance Administration Guide
Purpose
Enters global configuration mode.
Enables automatic synchronization of the running-configuration
and the startup-configuration files after they have been explicitly
disabled.
The keywords are:
running-config—Enables autosynchronization of the
•
running-configuration file. The default is enabled.
startup-config—Enables autosynchronization of the
•
startup-configuration file. The default is enabled.
(Optional) Disables automatic synchronization of the
running-configuration and the startup-configuration files.
Configuring Redundant ACEs
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