Functional
Overview
Functional
Overview
This
section
describes
functions
that
support
the routers
high
availability
and
maintainability
The
OIR
feature
enables
you
to
quickly
install
new
interfaces
without
interrupting
system
power
or
shutting
down
existing interfaces
The
environmental
monitoring
and
reporting
functions
continuously
monitor
temperature
and
voltage
points
in
the
system and
provide
reports
and warning
messages
that
enable
you
to
quickly
locate
and
resolve
problems and
maintain
uninterrupted
operation
These
descriptions
will
help
you become
familiar with
the
capabilities
of the router
and
with
the functional
differences
between
the Cisco
7513
and
other products
Addresses
and
Port
Numbers
Each
interface
port
in
Cisco
7513
uses
different
types of addressing
The
slot/port
number
is
the
actual
physical
location
of the interface
connector
port
within
chassis slot
The
system
software
uses the
slot/port
numbers
to
control
activity
within
the router
and
to
display
status
information
The
Media
Access
Control
MAC-layer
or
hardware
address
is
standardized
data
link layer address
that
is
required
for every
port
or device
that
connects
to
network
These
addresses
are
not used
by
other devices
in
the
network
they are
specific
to
the individual
router
The
Cisco
7513
uses
specific
method
to
assign
and
control
the
MAC-layer
addresses
of
its
interfaces
The
following
sections
describe
how
the Cisco
7513
assigns
and
controls
both
the
slot/port
numbers
and
MAClayer
addresses
for
interfaces
within
the chassis
Slot/Port
Numbers
In the Cisco
7513
slot/port
numbers
specify
the
actual
location
of each
interface
port
on
the router
interface
processors
See
Figure
1-20
The
numbers
use
the format
slot/port
The
first
number
identifies
the
slot
in
which
the
interface
processor
is installed
through
and
through
12
The
second
number
identifies
the port
number
on
the
interface
processor
The
ports
on
each
interface
processor
are
numbered
sequentially
from
top
to
bottom
beginning
with
the port
Interface
ports
maintain
the
same
slot/port
number
regardless
of
whether
other
interface
processors
are
installed
or
removed
However when
you
move
an interface
processor
to
different
slot the
first
number
changes
to
reflect
the
new
slot
number
For example
on
six-port
EIP
in
slot
the
slot/port
number
of the
first
port
is
1/0 and
that
of the
last
port
is
1/5
If
you remove
the
EIP from
slot
and
install
it
in
slot
the
slot/port
numbers
of
those
same
ports
become
2/0
and 2/5
respectively
Figure
1-20
shows
some
of the
slot/port
numbers
of
sample system
Product
Overview
1-31
Summary of Contents for 7513 Series
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