Cisco Explorer 4700 Installation Guide download pdf (Page 188)

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

OL-26645-02

Chapter 5 Configuring Virtual Servers

Configuring Virtual Servers

Step 9 In the Compression Method field, select the HTTP compression method to indicate how the ACE

appliance is to compress packets when a client request indicates that the client browser is capable of

packet compression. By default, HTTP compression is disabled in the ACE. When you configure HTTP

compression using the ACE, the ACE compresses data in the HTTP GET responses from the real servers.

The ACE does not compress HTTP requests from clients or the HTTP headers in the server responses.

Note By default, the ACE supports HTTP compression at rates of 100 megabits per second (Mbps).

Installing an optional HTTP compression license allows you to increase this value to a maximum

of 2 Gbps. See the Administration Guide, Cisco ACE Application Control Engine for

information on ACE licensing options.

Options are as follows:

• Deflate—Specifies the deflate compression format as the method to use when the client browser

supports both the deflate and gzip compression methods. deflate, the data format for compression

described in RFC1951

• Gzip—Specifies the gzip compression format as the method to use when the client browser supports

both the deflate and gzip compression methods. Gzip is the file format for compression described

in RFC1952.

Backup Server Farm Select an existing server farm to act as the backup server farm this sticky group, or select *New*

to create a new server farm. If you select *New*, configure the server farm using the information

in Table 5-11.

Aggregate State Check this check box to indicate that the state of the primary server farm is to be tied to the state

of all real servers in the server farm and in the backup server farm, if configured. The ACE

appliance declares the primary server farm down if all real servers in the primary server farm and

all real servers in the backup server farm are down.

Clear this check box if the state of the primary server farm is not to be tied to all real servers in the

server farm and in the backup server farm.

Enable Sticky On

Backup Server Farm

Check this check box to specify that the backup server farm is sticky. Clear this check box if the

backup server farm is not sticky.

Buddy Group Associate the serverfarm with a buddy member group by creating a buddy sticky group or selecting

an existing one (for more information, see the “Buddy Sticky Groups” section on page 7-6).

Replicate On HA Peer Check this check box to indicate that the virtual server is to replicate sticky table entries on the

backup server farm. If a failover occurs and this option is selected, the new active server farm can

maintain the existing sticky connections.

Clear this check box to indicate that the virtual server is not to replicate sticky table entries on the

backup server farm.

Timeout (Minutes) Enter the number of minutes that the virtual server keeps the sticky information for a client

connection in the sticky table after the latest client connection terminates. Valid entries are integers

from 1 to 65535; the default is 1440 minutes (24 hours).

Timeout Active

Connections

Check this check box to specify that the virtual server is to time out sticky table entries even if

active connections exist after the sticky timer expires.

Clear this check box to specify that the virtual is not to time out sticky table entries even if active

connections exist after the sticky timer expires. This is the default behavior.

Table 5-13 Sticky Group Attributes (continued)

Field Description

1 ... 187 188 189 ... 648

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