Functional
Overview
Online
Insertion
and Removal
The
OIR
feature
allows
you
to install
and
replace
interface
processors
while
the
system
is
operating
you
do
not
need
to
notify the software
or shut
down
the
system power
All interface
processors
AlP
CIP BIP FEIP
FIP FSIP
HP
MIP
and
TRIP
support
OIR
The
following
is
functional
description
of
OIR
for
background
information
only
for
specific
procedures
for
installing
and
replacing
interface
processors
on
line
refer
to
the section
Installing
and
Configuring
Processor
Modules
in
the chapter
Maintaining
the
Router
Caution
All interface
processors
support
OIR
however
you must
shut
down
the system
before
removing
or
installing
the
RSP2
which
is
required
system
component
Removing
an
RSP2
while
the
system
is
operating
will
cause
the system
to
shut
down
or
crash and might damage
or destroy
memory
files
Bach
RSP2
and
interface
processor
contains
bus
connector
with
which
it
connects
to
the system
backplane
The
bus
connector
is
set
of
tiered
pins
in
three
lengths
The
pins
send
specific
signals
to
the system
as
they
make
contact
with
the
backplane
The
system
assesses
the signals
it
receives
and
the order
in
which
it
receives
them
to
determine
what
event
is
occurring
and what
task
it
needs
to
perform
such
as
reinitializing
new
interfaces
or shutting
down
removed
ones
For example
when
you
insert
an
interface
processor
the longest pins
make
contact
with
the
backplane
first
and
the shortest
pins
make
contact
last
The
system
recognizes
the
signals
and
the
sequence
in
which
it
receives
them
The
system
expects
to
receive
signals
from
the individual
pins
in
this
logical
sequence
and
the
ejector
levers
help
to
ensure
that
the pins
mate
in
this
sequence
When
you remove
or
insert
an
interface
processor
the backplane
pins
send
signals
to
notify
the
system which
then
performs
as
follows
Rapidly
scans
the backplane
for
configuration
changes
and
does
not
reset
any
interfaces
Initializes
all
newly
inserted
interface
processors
noting
any removed
interfaces
and
placing
them
in
the administratively
shutdown
state
Brings
all
previously
configured
interfaces
on
the
interface
processor
back
to
the
state
they
were
in
when
they
were removed
Any
newly
inserted
interfaces
are put in the administratively
shutdown
state
as
if
they
were
present
but unconfigured
at
boot
time
If
similarinterface
processor
type has
been
reinserted
into
slot then
its
ports
are configured
and
brought
on
line
up
to
the port count
of the
original
interface
processor
OIR
functionality
enables
you
to
add remove
or replace interface
processors
with
the
system
online
which
provides
method
that
is
seamless
to
end
users
on
the
network
maintains
all
routing
information
and
ensures
session preservation
When
you
insert
new
interface
processor
the system
runs
diagnostic
test
on
the
new
interfaces
and compares them
to
the existing configuration
If this
initial
diagnostic
test
fails
the system
remains
off
line
while
it
performs
second
set
of
diagnostic
tests
to
determine
whether
or not the interface
processor
is
faulty
and
if
normal
system
operation
is
possible
If
the second
diagnostic
test
passes which
indicates
that
the
system
is
operating
normally
and
the
new
interface
processor
is
faulty
the
system resumes normal
operation
but leaves
the
new
interfaces
disabled
If
the second
diagnostic
test
fails the
system
crashes
which
usually
indicates
that
the
new
interface
processor
has
created
problem
in the bus
and
should
be
removed
The
system
brings
on
line
only
interfaces
that
match
the current
configuration
and were
previously
configured
as
active
all
other
interfaces
require
that
you
configure
them
with
the
configure
command
Product
Overview
1-35
Summary of Contents for 7513 Series
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