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Virtual Router Redundancy Protocol Commands
5-196 Configuring the Internet Protocol
vrrp <group> track
This
command
allows
a
Virtual
Router
(VR)
to
track
another
interface
(FastEthernet,
Serial,
Dialer
or
Multilink
PPP)
or
one
or
moe
routes
on
the
same
router.
When
interface
A
is
configured
to
track
interface
B,
interface
A
will
monitor
the
status
of
interface
B
to
decide
if
it
wants
to
become
the
master
of
a
VR.
When
interface
B
goes
down,
it
will
lower
its
priority
to
0
(zero)
and
refrain
from
participating
in
the
VR
master
selection.
but
will
continue
to
monitor
interface
B.
When
interface
B
comes
up,
interface
A
will
increase
its
VR
priority
back
to
the
original
value.
If
interface
A
is
originally
configured
as
a
backup
VR,
no
preemption
will
occur,
but
interface
A
will
resume
being
the
backup
VR.
This
command
should
be
used
on
the
interface
that
is
most
likely
to
be
selected
as
master
of
the
corresponding
VR.
If
the
interface
is
configured
as
a
backup
VR,
the
command
has
no
effect.
When
you
configure
watchlist
tracking,
if
all
routes
fail,
the
VR
will
lower
its
priority
to
0
and
when
at
least
one
of
the
routes
come
up,
the
VR
will
return
to
its
original
priority.
When
specifying
a
watch
‐
group,
be
aware
that
you
can
use
the
associated
dialer watch-list
command.
Syntax of the “no” Form
vrrp
<
group
>
track
<
interface-type
>
watch-group
watch-list-number
Syntax of the “no” Form
The
no
form
of
this
command
disables
the
functionality:
no vrrp
group
track
Defaults
•
No
interface
tracking.
•
If
no
group
is
provided,
the
default
group
is
1.
Mode
Interface
configuration:
XSR(config-if<
xx
>)#
Example
This
example
enables
the
tracking
of
interface
Serial
1/0
by
interface
F1
on
VR
2
:
Notes:
This command should be used on the interface most likely to be chosen master of the
corresponding VR. The command has no effect if the interface is configured as a backup VR.
The XSR supports one track interface per VR only, so every time it is configured, the router will
overwrite the previous one.
Caution:
When you configure the track interface, the VR IP address you specify must be different
than the physical IP address of the interface otherwise client ARP tables will not be correctly
updated.
group
VR
group
number,
ranging
from
1
to
255.
interface-type
Name
and
number
of
the
interface
to
monitor.
watch-list-number
Number
of
the
Dialer
watch
‐
list
to
monitor,
ranging
from
1
to
255.
Содержание X-Pedition XSR
Страница 1: ...X Pedition Security Router XSR CLI Reference Guide Version 7 6 P N 9033842 07...
Страница 2: ......
Страница 10: ...viii...
Страница 14: ...xii...
Страница 134: ...Bootrom Monitor Mode Commands 3 128 Configuring the XSR Platform...
Страница 278: ...VRRP Clear and Show Commands 5 202 Configuring the Internet Protocol...
Страница 352: ...IGMP Clear and Show Commands 7 104 Configuring IP Multicast...
Страница 406: ...Multilink Show Commands 8 136 Configuring the Point to Point Protocol...
Страница 436: ...Frame Relay Clear and Show Commands 9 112 Configuring Frame Relay...
Страница 460: ...Dialer Watch Commands 10 106 Configuring the Dialer Interface...