7-36
User
Guide

for

the

Cisco

Application

Networking

Manager

5.2
OL-26572-01
Chapter
7






Configuring

Virtual

Servers
Configuring
Virtual

Servers
Transparent
Field
that

appears

only

for

real

servers

identified

as

host

servers.
Specify
whether

network

address

translation

from

the

VIP

address

to

the

server

IP

is

to

occur.

Check

the
check
box

to

specify

that

network

address

translation

from

the

VIP

address

to

the

server

IP

address

is

to
occur.
Uncheck

the

check

box

to

specify

that

network

address

translation

from

the

VIP

address

to

the
server
IP

address

is

not

to

occur.
Dynamic
Workload
Scaling

Option
that

is

available

only

with
ACE
software

Version
A4(2.0)
or
later
release

on
either
device

type
(appliance

or

module).

Field

that

appears

only

for

host

server

farms.
Allows
the

ACE

to

burst

traffic

to

remote

VMs

when

the

average

CPU

usage,

memory

usage,

or

both

of
the
local

VMs

has

reached

it’s

specified

maximum

threshold

value.

The

ACE

stops

bursting

traffic

to

the
remote
VMs

when

the

average

CPU

and/or

memory

usage

of

the

local

VMs

has

dropped

to

it’s

specified
minimum
threshold

value.

This

option

requires

that

you

have

the

ACE

configured

for

Dynamic

Workload
Scaling
using

a

Nexus

7000,

VM

Controller,

and

VM

probe

(see

the

“Configuring

Dynamic

Workload
Scaling”
section

on

pa

ge

8-26 ).
Click
one

of

the

following

radio

button

options:

•
N/A—Not
applicable

(default).

•
Local—The
ACE

can

use

the

VM

Controller
local
VMs

only
for
load

balancing

(bursting
is
not
allowed).

•
Burst—Enables
the

ACE

to
burst
traffic

to

a

remote

VMs

when
needed.
When
you

choose

Burst,

the

VM

Probe

Name

field

displays

along

with

a

list

of

available

VM

probes.
Choose
an

available

VM

probe

or

click

Add

to

display

the

Health

Monitoring

popup

window

and
create
a

new

VM

probe

or

edit

an

existing

one

(see

the

“Configuring

Health

Monitoring”

section

on
page
8-49 ).
Fail-
On-All
Field
that

appears

for

host

server

farms

only.
By
default,

real

servers

that

you

configure

in

a

server

farm

inherit

the

probes

that

you

configure

directly
on
that

server

farm.

When

you

configure

multiple

probes

on

a

server

farm,

the

real

servers

in

the

server
farm
use

an

OR

logic

with

respect

to

the

probes,

which

means

that

if

one

of

the

probes

configured

on

the
server
farm

fails,

all

the

real

servers

in

that

server

farm

fail

and

enter

the

PROBE-FAILED

state.
With
AND

logic,

if

one

server

farm

probe

fails,

the

real

servers

in

the

server

farm

remain

in

the
OPERATIONAL
state.

If

all

the

probes

associated

with

the

server

farm

fail,

then

all

the

real

servers

in
that
server

farm

fail

and

enter

the

PROBE-FAILED

state.

You

can

also

configure

AND

logic

for

probes
that
you

configure

directly

on

real

servers

in

a

server

farm.

For

more

information,

see

the

command

in
server
farm

host

real

server

configuration

mode.
Check
this

check

box

to

configure

the

real

servers

in

a

server

farm

to

use

AND

logic

with

respect

to
multiple
server

farm

probes.
The
Fail

On

All

function

is

applicable

to

all

probe

types.
Table
7-13
New
Server

Farm

Attributes

(continued)
Field
Description