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

OL-26645-02

Chapter 12 Configuring Traffic Policies

Configuring Rules and Actions for Policy Maps

Table 12-20 Policy Map Actions for Load Balancing

Action Description

Action Indicates that the ACE appliance is to use an HTTP header modify action list to insert, rewrite, or

delete HTTP headers. It can also be used to configure the SSL URL rewrite function

The Action List drop down appears, listing the configured HTTP header modify action lists (see

the “Configuring an HTTP Header Modify Action List” section on page 12-90). Make a selection

from this list.

If necessary, click Add to add a new HTTP header modify action list, or select an existing action

list, and then click Edit to modify it.

Compress Indicates that the ACE appliance is to compress packets that match this policy map. This option is

available only when you associate an HTTP-type class map with a policy map.

In the Compress Method field, specify the method that the ACE appliance is to use to compress

packets:

• Deflate—Indicates that the ACE appliance is to use the DEFLATE compression method when

the client browser supports both the DEFLATE and GZIP compression methods.

• Gzip—Indicates that ACE appliance is to use the GZIP compression method when the client

browser supports both the DEFLATE and GZIP compression methods. This is the default

setting.

Drop Indicates that the ACE appliance is to discard packets that match this policy map.

In the Action Log field, specify whether the dropped packets are to be logged in the software.

• N/A—This option is not configured.

• False—Dropped packets are not to be logged in the software.

• True—Dropped packets are to be logged in the software.

Forward Indicates that the ACE appliance is to forward requests that match this policy map without load

balancing the requests.

Insert-HTTP Indicates that the ACE appliance is to insert an HTTP header for Layer 7 load balancing for

requests that match this policy map.

This option allows the ACE appliance to identify a client whose IP address has been translated

using NAT by inserting a generic header and string value in the client HTTP request.

1. In the HTTP Header Name field, enter the name of the generic field in the HTTP header. Valid

entries are unquoted text strings with no spaces and a maximum of 64 alphanumeric

characters.

2. In the HTTP Header Value field, enter the value to be inserted into the HTTP header. Valid

entries are unquoted text strings with a maximum of 255 alphanumeric characters. The ACE

appliance supports regular expressions for matching. To include spaces, enclose the entire

string in quotes. All headers in the header map must be matched. See Table 12-33 for a list of

the supported characters that you can use in regular expressions.

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