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OSPF Commands
5-86 Configuring the Internet Protocol
Default
No
NSSA
defined
Example
The
following
example
configures
area
10
as
a
NSSA
area:
XSR(config)#interface fastethernet 1
XSR(config-if<F1>)#ip address 172.16.10.5 255.255.255.252
XSR(config)#router ospf 1
XSR(config-router)#network 172.16.10.5 0.0.0.0 area 10
XSR(config-router)#area 10 nssa default-information-originate
area range
This
command
defines
the
range
of
addresses
to
be
used
by
Area
Boundary
Routers
(ABRs)
when
they
communicate
routes
to
other
areas.
ABRs
summarize
an
area’s
intra
‐
area
routes
into
inter
‐
area
routes
which
are
then
injected
into
other
areas.
The
metric
used
is
the
highest
metric
of
the
included
intra
‐
area
routes.
The
forwarding
address
is
0.
Other
actions
implemented
by
this
command
include:
•
A
summary
range
becomes
active
if
it
includes
at
least
one
intra
‐
area
route
being
leaked
into
the
area.
•
A
discard
route
is
installed
for
an
active
summary
range.
Conversely,
when
it
becomes
inactive,
the
discard
route
is
removed.
•
The
cost
of
the
summary
range
is
the
highest
cost
among
all
leaked
intra
‐
area
routes.
•
SNMP
supports
area
range
via
MIB
object
ospfAreaRangeTable
as
defined
in
RFC
‐
1850.
Syntax
area
area-id
range
ip
-
address mask
[
advertise
][
not-advertise
]
Syntax of the “no” Form
The
no
form
of
this
command
bars
routes
from
being
summarized:
no area
area-id
range
address mask
Note:
You should avoid needless reorigination of Type-3 Link-State Advertisements (LSAs). For
example, leaking intra-area routes which do not change the cost of a summary will re-origination the
summary LSA.
area-id
Area
at
the
boundary
of
which
routes
will
be
summarized.
Valid
values
are
decimals
or
IP
addresses.
ip-address
Common
prefix
of
summarized
networks.
mask
Length
of
the
common
prefix.
advertise
Broadcasts
a
single
Type
‐
3
LSA
for
all
intra
‐
area
routes
leaked
into
this
area
and
included
in
the
summary
range.
not
-
advertise
Suppresses
Type
‐
3
LSA
generation
for
all
routes
in
the
summary
range.
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...