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Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance
OL-26645-02
Chapter 6 Configuring Real Servers and Server Farms
Configuring Server Farms
State Select the state of this server:
• In Service—Indicates that this server is in service.
• In Service Standby—Indicates that this server is a backup server and is
to remain inactive unless the primary server fails. If the primary server
fails, the backup server becomes active and starts accepting
connections.
• Out Of Service—Indicates that this server is out of service.
Buddy Real Group
Name
Create a buddy real server group or select an existing one to enable
persistence to the same real server or group of real servers across multiple
server farms (for more information, see the “Buddy Sticky Groups” section
on page 7-6).
Fail-On-All This field appears only for real servers identified as host servers.
By default, real servers with multiple probes configured for them have an
OR logic associated with them. This means that if one of the real server
probes fails, the real server fails and enters the PROBE-FAILED state.
Click this check box to configure a real server to remain in the
OPERATIONAL state unless all probes associated with it fail (AND logic).
The Fail On All function is applicable to all probe types.
Min. Connections Enter the minimum number of connections that the number of connections
must fall below before the ACE appliance resumes sending connections to
the server after it has exceeded the number in the Max. Connections field.
The number in this field must be less than or equal to the number in the Max.
Connections field. 1 to 4000000. The default value is 4000000.
Max. Connections Enter the maximum number of active connections that can be sent to the
server. When the number of connections exceeds this number, the ACE
appliance stops sending connections to the server until the number of
connections falls below the number specified in the Min. Connections field.
Valid entries are integers from 1 to 4000000. The default is 4000000.
Weight Enter the weight to assign to the server. Valid entries are integers from 1 to
100, and the default is 8.
Cookie String This field appears only for real servers identified as hosts.
Enter a cookie string value of the real server, which is to be used for HTTP
cookie insertion when establishing a sticky connection. Valid entries are text
strings with a maximum of 32 alphanumeric characters. You can include
spaces and special characters in a cookie string value.
Use cookie insertion when you want to use a session cookie for persistence
if the server is not currently setting the appropriate cookie. With this feature
enabled, the ACE inserts the cookie in the Set-Cookie header of the response
from the server to the client. See Chapter 7, “Configuring Stickiness” for
details on HTTP cookie sticky connections.
Table 6-6 Real Server Configuration Attributes (continued)
Field Description
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