492
CN4093 Application Guide for N/OS 8.4
Other Internal Improvements
OSPFv3
has
numerous
improvements
that
increase
the
protocol
efficiency
in
addition
to
supporting
IPv6
addressing.
These
improvements
change
some
of
the
behaviors
in
the
OSPFv3
network
and
may
affect
topology
consideration,
but
have
little
direct
impact
on
configuration.
For
example:
Addressing
fields
have
been
removed
from
Router
and
Network
LSAs.
Flexible
treatment
of
unknown
LSA
types
to
make
integration
of
OSPFv3
easier.
Interface
network
type
can
be
specified
using
the
command:
CN 4093(config-ip-if)#
ipv6 ospf network {broadcast|
|non-broadcast|point-to-multipoint|point-to-point}
For
an
interface
network
type
that
is
not
broadcast
or
NBMA,
link
LSA
suppression
can
be
enabled
so
link
LSA
is
not
originated
for
the
interface.
Use
the
command:
CN 4093(config-ip-if)#
ipv6 ospf linklsasuppress
OSPFv3 Limitations
Enterprise
NOS
8.4
does
not
currently
support
the
following
OSPFv3
features:
Multiple
instances
of
OSPFv3
on
one
IPv6
link.
OSPFv3 Configuration Example
The
following
example
depicts
the
OSPFv3
equivalent
configuration
of
for
OSPFv2.
In
this
example,
one
summary
route
from
area
1
(stub
area)
is
injected
into
area 0
(the
backbone).
The
summary
route
consists
of
all
IP
addresses
for
the
36.:0/32
portion
of
the
36::0/56
network
except
for
the
routes
in
the
36::0/8
range.
Figure 54.
Summarizing
Routes
Note:
You
can
specify
a
range
of
addresses
to
prevent
advertising
by
using
the
hide
option.
In
this
example,
routes
in
the
36::0/8
range
are
kept
private.
IF 3
10::1
IF 4
36::1
10::0/56
Network
36::0/56
Network
36::0/32
(- 36::0/8)
Backbone
Stub Area
Summary Route
ABR
Area 0
(0.0.0.0)
Area 1
(0.0.0.1)
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