Cisco 4700M Administration Manual page 167

Chapter 6 Configuring Redundant ACEs
Restrictions
If you remove a probe from the active FT group member configuration and you have not configured a
tracking priority for the FT group, the ACE increments the net FT group priority by the priority value of
the deleted probe. You cannot delete a probe from the running-configuration file if the ACE is using the
probe for tracking.
Detailed Steps
Command
Step 1
config
Example:
host1/Admin# config
host1/Admin#(config)#
Step 2
ft track host name
Example:
host1/Admin(config)# ft track host
TRACK_GATEWAY1
host1/Admin(config-ft-track-host)#
Step 3
track-host ip_address
Example:
host1/Admin(config-ft-track-host)#
track-host 192.168.12.101
no track-host ip_address
Example:
host1/Admin(config-ft-track-host)# no
track-host 192.168.12.101
Step 4
probe name priority number
Example:
host1/Admin(config-ft-track-host)# probe
TCP_PROBE1 priority 50
OL-20823-01
Purpose
Enters global configuration mode.
Creates a tracking and failure detection process for a gateway or
host.
For the name argument, enter a unique identifier of the tracking
process as an unquoted text string with no spacesand a maximum
of 64 alphanumeric characters.
This commands enters the FT track host configuration mode.
Configures the IP address of the gateway or host.
The ip_address argument specifies the IP address of the gateway
or host that you want the active FT group member to track.
This command enters the FT group configuration mode.
(Optional) Removes the IP address of the gateway or host from
the tracking process on the standby member configuration.
Associates an existing probe with a gateway or host for tracking
by the active member. For information about creating probes, see
the Cisco 4700 Series Application Control Engine Appliance
Server Load-Balancing Configuration Guide.
The keyword and arguments are:
name—Identifier of an existing probe that you want to
•
associate with a gateway or host for tracking.
priority number—Specifies the priority of the probe sent by
•
the active member. Enter an integer from 0 to 255. The
default is 0. Higher values indicate higher priorities. Assign
a priority value based on the relative importance of the
gateway or host that the probe is tracking. If the probe goes
down, the ACE decrements the priority of the FT group on
the active member by the value of the number argument. If
the resulting priority of the FT group on the active member
is less than the priority of the FT group on the standby
member, a switchover occurs.
Cisco 4700 Series Application Control Engine Appliance Administration Guide
Configuring Redundant ACEs
6-23