Cisco Explorer 4700 Installation Guide download pdf (Page 416)

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Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance

OL-26645-02

Chapter 11 Configuring High Availability

Tracking Hosts for High Availability

• Tracking Hosts for High Availability, page 11-20

Tracking Hosts for High Availability

Use this procedure to configure a tracking and failure detection process for a gateway or host.

Procedure

Step 1 Choose Config > Virtual Contexts > HA Tracking And Failure Detection > Hosts. The Track Host

table appears.

Step 2 Click Add to add a new tracking process to the table, or select an existing entry, and then click Edit to

modify it. The Track Host configuration screen appears.

Step 3 In the Track Object Name field, enter a unique identifier for the tracking process. Valid entries are

unquoted text strings with no spaces and a maximum of 64 alphanumeric characters.

Step 4 For the IP Address Type, select either IPv4 or IPv6 for the host address type.

Step 5 In the Track Host/IP Address field, enter the IPv4 or IPv6 address or hostname of the gateway or host

that you want the active member of the high availability group to track.

Step 6 In the Priority field, enter the priority of the probe sent by the active member. Valid entries are integers

from 0 to 255. Higher values indicate higher priorities. Assign a priority value based on the relative

importance of the host that the probe is tracking. If the probe goes down, the ACE appliance decrements

the priority of the fault-tolerant group on the active member by the value in the Priority field.

Step 7 In the Peer Host/IP Address field, enter the IPv4 or IPv6 address or hostname of the host that you want

the standby member to track.

Step 8 In the Peer Priority field, enter the priority of the probe sent by the standby member. Valid entries are

integers from 0 to 255. Higher values indicate higher priorities. Assign a priority value based on the

relative importance of the host that the probe is tracking. If the probe goes down, the ACE appliance

decrements the priority of the fault-tolerant group on the standby member by the value in the Priority

field.

Step 9 Do the following:

• Click Deploy Now to save your entries and to continue with configuring track host probes. See

Configuring Host Tracking Probes, page 11-21.

• Click Cancel to exit this procedure without saving your entries and to return to the Track Host table.

• Click Next to save your entries and to configure another tracking process.

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Cisco Explorer 4700 Installation Guide Page 416

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