Configuring Tracking And Failure Detection For An Interface - Cisco 4700M Administration Manual

Chapter 6 Configuring Redundant ACEs
Command
Step 8
peer priority number
Example:
host1/Admin(config-ft-track-host)# peer
priority 25
no peer priority number
Example:
host1/Admin(config-ft-track-host)# peer
priority 25
Step 9
do copy running-config startup-config
Example:
host1/Admin(config-ft-track-host)# do copy
running-config startup-config
Examples
The following example demonstrates a tracking configuration for a gateway on the active member of an
FT group:
ft track host TRACK_GATEWAY
track-host 192.161.100.1
probe GATEWAY_TRACK1 priority 10
probe GATEWAY_TRACK2 priority 20
priority 50
In this configuration example, if the GATEWAY_TRACK1 probe goes down, the ACE reduces the
priority of the FT group on the active member by 10. If the GATEWAY_TRACK2 probe goes down, the
ACE reduces the priority of the FT group on the active member by 20. If both probes go down, the ACE
reduces the priority of the FT group on the active member by 50. If at any time the priority of the FT
group on the active member falls below the priority of the FT group on the standby member, a switchover
occurs.

Configuring Tracking and Failure Detection for an Interface

This section describes how to configure tracking and failure detection for an interface.
Restrictions
You cannot delete an interface if the ACE is using the interface for tracking. Also, you cannot configure
the FT VLAN for tracking.
OL-20823-01
Purpose
Assigns a priority for multiple probes on the standby member.
The number argument specifies the priority of the probes
configured for the gateway or host on the standby member. Enter
a priority value as 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
probes are tracking. If all the probes go down, the ACE
decrements the priority of the FT group on the standby member
by the value of the number argument.
(Optional) Reset the multiple-probe priority to the default value
of 0 on the standby member.
(Optional) Copies the running configuration to the startup
configuration.
Cisco 4700 Series Application Control Engine Appliance Administration Guide
Configuring Redundant ACEs
6-25