13-26
User
Guide

for

the

Cisco

Application

Networking

Manager

5.2
OL-26572-01
Chapter
13






Configuring

High

Availability
Configuring
Host

Tracking

Probes
Valid
entries

are

from

0

to

255.

Higher

values

indicate

higher

priorities.

Assign

a

priority

value

based
on
t

he

relative

importance

of

the

host


t

hat

t

he

probe

is

t

racking.

If

the

pr

obe

goes

down,

t

he

ACE
decrements
the

priority

of

the

fault-tolerant

group

on

the

active

member

by

the

value

in

the

Priority

field.
Step
7
In
the

Peer

Host/IP

Address

field,

enter

the

IPv4
or
IPv6
address

or

hostname

of
the
host

that

you
want
the
standby

member

to

track.
Step
8
In
the

Peer

Priority

field,

enter

the
priority
of
the
probe
sent
by
the
standby
member.
Valid
entries

are

from

0

to

255.

Higher

values

indicate

higher

priorities.

Assign

a

priority

value

based
on
t

he

relative

importance

of

the

host


t

hat

t

he

probe

is

t

racking.

If

the

pr

obe

goes

down,

t

he

ACE
decrements
the

priority

of

the

fault-tolerant

group

on

the

standby

member

by

the

value

in

the

Priority
fiel
d.
Step
9
Do
one

of

the

following:

•
Click
Deploy
Now

to

deploy
this
configuration

on

t

he
ACE

and

save

your

entries

t

o

the
running-configuration
and

startup-configuration

files.

Continue

with

configuring

track

host

probes.
See
Configuring

Host

Tracking

Probes,

page

13-26 .

•
Click
Cancel
to
exit

this

procedure
without
saving

your

entries

and
to
return

to

the

Track

Host

table.

•
Click
Next
t

o

deploy

your

entries

and

to
configure
another
tracking
pr

ocess.
Related
Topics

•
Configuring
Host

Tracking

Probes,

page
13-26

•
Configuring
ACE
High

Availability

Peers,

page
13-15

•
Configuring
ACE

High

Availability

Groups,

page
13-17

•
Tracking
ACE
VLAN

Interfaces

for

High

Availability,

page
13-24
Configuring
Host

Tracking

Probes
You
can

configure

probes

on

the

active

high

availability

group

member

to

track

the

health

of

the

gateway
or
host.
Assumptions
This
topic

assumes

the

following:

•
At
least

one

host

tracking

process

for
high
availability
has

been

configured

(see
Tracking
Hosts

for
High
Availability,

page

13-25 .)

•
At
least

one

health

monitoring
probe
has

been

configured

(see
Configuring
Health

Monitoring

for
Real
Servers,

page

8-51 ).
Procedure
Step
1
Choose
Config
>

Devices

>

admin_context

>

HA

Tracking

And

Failure

Detection

>

Hosts.
The
Track

Host

table

appears.
Step
2
Choose
the

tracking

process

that

you

want
to
modify,

and

click

the
Peer
Track

Host

Probe

tab.
The
Peer

Track

Host

Probes

table

appears.