Cisco Explorer 4700 Installation Guide download pdf (Page 178)

5-42

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

OL-26645-02

Chapter 5 Configuring Virtual Servers

Configuring Virtual Servers

Probes Specify the health monitoring probes to use:

• To include a probe that you want to use for health monitoring, select it in the Available list, and then

click Add. The probe appears in the Selected list.

The redirect real server probe list contains only configured probes of the type Is Routed, which means

that the ACE routes the probe address according to the ACE internal routing table (see the “Configuring

Health Monitoring for Real Servers” section on page 6-41).

Note You can associate both IPv6 and IPv4 probes to a server farm.

Note The list of available probes does not include VM health monitoring probes. To choose a VM

probe for monitoring local VM usage, see the Dynamic Workload Scaling field.

• To remove a probe that you do not want to use for health monitoring, select it in the Selected list, and

then click Remove. The probe appears in the Available list.

• To specify a sequence for probe use, select probes in the Selected list, and then click Up or Down until

you have the desired sequence.

• To view the configuration for an existing probe, select a probe in the list on the right, and then click

View.

• To display statistics and status information for an existing probe, choose a probe in the list on the right,

and click Details. DM accesses the show probe name detail CLI command to display detailed probe

information. See the “Displaying Health Monitoring Statistics and Status Information” section on

page 6-69.

To add a new probe, click Create. See the “Configuring Health Monitoring for Real Servers” section on

page 6-41 for details on adding a new health monitoring probe and defining attributes for the specific probe

type. In addition, set the following probe configuration parameters in the Probes section under Server Farm:

• Expect Addresses—To configure expect addresses for a DNS probe in Expect Addresses configuration

screen, in the IPv4/IPv6 Address field, enter the IP address that the ACE appliance expects as a server

response to a DNS request. You can enter multiple addresses in this field. However, you cannot mix

IPv4 and IPv6 addresses.

• Probe Headers—To configure probe headers for either an HTTP or HTTPS probe, in the Probe Headers

field enter the name of the HTTP header and the value to be matched using the format

header_name=header_value where:

–

header_name represents the HTTP header name the probe is to use. Valid entries are unquoted text

strings with no spaces and a maximum of 64 alphanumeric characters. You can specify predefined

header or any custom header name provided that it does not exceed the maximum length limit.

–

header_value represents the string to assign to the header field. Valid entries are text strings with

a maximum of 255 characters. If the string includes spaces, enclose the string with quotes.

Table 5-11 New Server Farm Attributes (continued)

Field Description

1 ... 177 178 179 ... 648

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