7-58
User
Guide

for

the

Cisco

Application

Networking

Manager

5.2
OL-26572-01
Chapter
7






Configuring

Virtual

Servers
Configuring
Virtual

Servers
Min.
Time

For

Cache
Ti
me

-

To

-

L

ive


(Seconds)
Minimum
number

of


seconds

t

hat

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

Ta

b

l

e


7-17

for

information

about

these

configuration

options.)
Valid
entries

are

0

to

2147483647

seconds.
Max.
Time

For

Cache
Ti
me

-

To

-

L

ive


(Seconds)
Maximum
number

of

se

conds

that

an

object
without
an
explicit
expiration
time

should
be
considered
fresh

in

the

ACE

cache.

Valid

entries

are

0

to

2147483647

seconds.
Cache
Time-To-Live
Duration
(%)
Percent
of

an

object’s

age

at

which

an

embedded

object

without

an

explicit

expiration

time

is
considered
fresh.
Valid
entries

are

0

to

100

percent.
Expression
To

Modify
Cache
Key

Query
Parameter
Feature
that

allows

you
to
modify

the

query
parameter

of

a

URL;

that

is,

the

portion

after

“?”

in

a
URL.
For

example,

the

query

parameter

por

tion

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

action=browse&level=2.
Enter
a

regul

ar

expression

containing

embedded

variables

as

de

scribed

in

Ta

b

l

e


7-19 .

The

ACE
transforms
URLs

specified

in

class

maps

for

this

virtual

server

with

the

expression

and

variable
entered
here.

If

no

string

is

specified,

the

query

parameter

portion

of

the

URL

is

used

as

the

default
value
for

this

portion

of

the

cache

key.
Valid
entries

are

unquoted

text

strings

with

no

spaces

and

a

maximum

of

255

alphanumeric
characters.
Canonical
URL
Expressions
Canonical
URL

feature

to

eliminate

the

“?”

and

any
characters
that

follow

to

identify

the

general
part
of

the

URL.

This

general

URL

is

then

used

to

create

the

base

file.

In

this

way,

the

ACE

maps
multiple
URLs

to

a

single

canonical

URL.
Enter
a

comma-separated

list

of

parameter

expander

functions

as

defined

in

Ta

b

l

e


7-19

to

identify
the
URLs

to

associate

with

this

parameter

map.
Valid
entries

are

unquoted

text

strings

with

a

maximum

of

255

alphanumeric

characters.
Enable
Cacheable
Content
Optimization
Check
box
that

enables

delta
optimization
of


content
that
can

be

cached.
This
feature

allows

t

he
ACE
to

detect

content

that

can

be

cached

and

perform

delta

opt

imization

on

it.
Uncheck
the

check

box

to

disable

this

feature.
Enable
Delta
Optimization
On


First
Visit
To

Web

Page
Check
box

that

enables

condensation

on

t

he

first
visit
to
a
Web
page.
Uncheck
the
check

box

to
disable
this

feature.
Min.
Page

Size

For
Delta
Optimization
(Bytes)
Minimum
page

size,

in

bytes,

that

can

be

condensed.

Valid

entries

are

from

1

to

250000

bytes.
Max.

Page

Size

For
Delta
Optimization
(Bytes)
Maximum
page

size,

in

bytes,

t

hat

can

be

condensed.

Valid

entries

ar

e

fr

om

1

t

o

250000

bytes.
Table
7-18
Application
Acceleration

and

Optimization

Additional

Configuration

Options

(continued)
Field
Description