9-7
User
Guide

for

the

Cisco

Application

Networking

Manager

5.2
OL-26572-01
Chapter
9






Configuring

Stickiness
Configuring
Sticky

Groups
Related
Topics

•
Configuring
Stickiness,

page
9-1

•
Sticky
Types,

page
9-2

•
Sticky
Groups,

page
9-6
Configuring
Sticky

Groups
You
can

configure

sticky

gr

oups.

Stickiness

(or


session

persistence)

is

a

fe

ature

that

allows

the

same
client
to

maintain

multiple

simultaneous

or

subsequent

TCP

connections

with

the

same

real

server

for
the
duration

of

a

session.

A

session

is

a

series

of

transactions

between

a

client

and

a

server

over

some
finite
period

of

time

(from

several

minutes

to

several

hours).

This

feature

is

particularly

useful

for
e-commerce
applications

where

a

client

needs

to

maintain

multiple

TCP

connections

with

the

same
server
while

shopping

online,

especially

while

building

a

shopping

cart

and

during

the

checkout

process.
E-commerce
applications

ar

e

not


the

only

types

of

a

pplications

that

require

stickiness.

Any

web
application
that

maintains

client

information

may

require

stickiness,

such

as

banking

applications

or
online
trading.

Other

uses

include

FTP

and

HTTP

file

transfers.
The
ACE

uses

the

concept

of

sticky

groups

to

configure

stickiness.

A

sticky

group

allows

you

to

specify
sticky
attributes.

After

you

configure

a

sticky

group

and

its

attributes,

you

associate

the

sticky

group

with
a
Layer

7

pol

icy-map

action

in

a

La

yer

7

SLB

po

licy

map.
Note
(Pre
ACE

version

A4(1.0)

module

or

appliance

only)

The

context
in

which

you

configure

a

sticky

group
must
be

associated

with

a

resource

class

that

allocates

a

portion

of

ACE

resources

to

stickiness.

See

the
“Using
Resource

Classes”

section

on

pa

ge

6-43

for

i

nformation

about

configuring

ACE

resources.
Assumption
(Pre
ACE

version

A4(1.0)

module

or

appliance

only)

The

context

in

which

you

are

configuring

a

sticky
group
is

associated

with

a

resource

class

that

allocates

resources

to

stickiness.
Procedure
Step
1
Choose
Config
>

Devices

>

context

>

Load

Balancing

>

Stickiness.
The
Sticky

Groups

table

appears.
Step
2
In
the

Sticky

Groups

table,
click
Add

to

add

a

new

sticky

group,

or

choose

an

existing

sticky

group

that
you
want

to

modify

and

click

Edit.
Step
3
Configure
the

sticky

gr

oup

using

the

information

in
Ta
b

l

e
9-1
.
Note
Fields
and

information

related

to
IPv6
require
ACE
module
and
ACE

appliance
software
Version
A5(1.0)
or

later.