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8-12

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

OL-26645-01

Chapter 8 Configuring Parameter Maps

Configuring Optimization Parameter Maps

Max. Number for

Parameter Summary

Log (Bytes)

Enter the maximum number of bytes that are to be logged for each parameter value in the

parameter summary of a transaction log entry in the statistics log. If a parameter value exceeds this

limit, it is truncated at the specified limit. Valid entries are 0 to 10,000 bytes.

Max. For Post Data to

Scan for Logging

(KBytes)

Enter the maximum number of kilobytes of POST data the ACE is to scan for parameters for the

purpose of logging transaction parameters in the statistics log.

Valid entries are 0 to 1000 KB.

String For Grouping

Requests

Enter the string the ACE is to use to sort requests for AppScope reporting. The string can contain

a URL regular expression that defines a set of URLs in which URLs that differ only by their query

parameters are to be treated as separate URLs in AppScope reports.

For example, to define a string that is used to identify the URLs

http://server/catalog.asp?region=asia and http://server/catalog.asp?region=america as two

separate reporting categories, you would enter

http_query_param(region).

Valid entries contain 1 to 255 characters and can contain the parameter expander functions listed

in Table 8-6.

Base File Anonymous

Level

Information that is common to a large set of users is generally not confidential or user-specific.

Conversely, information that is unique to a specific user or a small set of users is generally

confidential or user-specific. The anonymous base file feature enables the ACE to create and

deliver condensed base files that contain only information that is common to a large set of users.

No information unique to a particular user, or across a very small subset of users, is included in

anonymous base files.

Enter the value for base file anonymity for the all-user condensation method. Valid entries are

integers from 0 to 50; the default value of 0 disables the base file anonymity feature.

Cache-Key Modifier

Expression

A cache object key is a unique identifier that is used to identify a cached object to be served to a

client, replacing a trip to the origin server. The cache key modifier feature allows you to modify

the canonical form of a URL; that is, the portion before “?” in a URL. For example, the canonical

URL of “http://www.xyz.com/somepage.asp?action=browse&level=2” is

“http://www.xyz.com/somepage.asp”.

Enter a regular expression containing embedded variables as described in Table 8-6. The ACE

transforms URLs specified in class maps for this virtual server with the expression and variable

entered here.

Valid entries are unquoted text strings with no spaces and a maximum of 255 alphanumeric

characters. If the string includes spaces, enclose the string with quotation marks (“).

Min. Time For Cache

Time-To-Live

(Seconds)

Enter the minimum number of seconds that an object without an explicit expiration time should be

considered fresh in the ACE cache. This value specifies the minimum time that content can be

cached. If the ACE is configured for FlashForward optimization, this value should normally be 0.

If the ACE is configured for dynamic caching, this value should indicate how long the ACE should

cache the page. (See Table 5-16 for information about these configuration options.)

Valid entries are 0 to 2147483647 seconds.

Max. Time For Cache

Time-To-Live

(Seconds)

Enter the maximum number of seconds that an object without an explicit expiration time should

be considered fresh in the ACE cache. Valid entries are 0 to 2147483647 seconds.

Table 8-5 Optimization Parameter Map Attributes (continued)

Field Description

1 2 ... 305 306 307 308 309 310 311 312 313 314 315 ... 647 648

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