default-route-advertise (OSPF view)
Syntax
default-route-advertise
[ [ [
always
|
permit-calculate-other
] |
cost
cost
|
route-policy
route-policy-name
|
type
type
] * |
summary cost
cost
]
undo default-route-advertise
View
OSPF view
Default level
2: System level
Parameters
always
: Generates a default route in a Type-5 LSA into the OSPF routing domain regardless of
whether there is a default route in the routing table. If this keyword is not specified, the router
generates a default route in a Type-5 LSA into the OSPF routing domain only when an active default
route that does not belong to the current OSPF process exists in the IP routing table.
permit-calculate-other
: Calculates default routes from other routers with this keyword specified or
does not calculate default routes from other routers without this keyword specified when the router
generates a default route in a Type-5 LSA into the OSPF routing domain. If the router generates no
default route in a Type-5 LSA into the OSPF routing domain, the router calculates default routes from
other routers regardless of whether this keyword is specified.
cost
cost
: Specifies a cost for the default route, in the range of 0 to 16777214. If no
cost
is specified,
the default cost specified by the
default cost
command applies.
route-policy
route-policy-name
: Specifies a routing policy name, a string of 1 to 63 case-sensitive
characters. When a default route exists in the routing table and the specified routing policy is
matched, the command distributes a default route in a Type-5 LSA into the OSPF routing domain,
and the routing policy modifies some values in the Type-5 LSA. If the
always
keyword is specified at
the same time, the command can distribute a default route in a Type-5 LSA into the OSPF routing
domain when the specified routing policy is matched, regardless of whether a default route exists in
the routing table, and the routing policy modifies some values in the Type-5 LSA.
type type
: Specifies a type for the Type-5 LSA: 1 or 2. If
type
is not specified, the default type for the
Type-5 LSA specified by the
default type
command applies.
summary
: Advertises the Type-3 summary LSA of the specified default route.
Description
Use
default-route-advertise
to generate a default route into the OSPF routing domain.
Use
undo default-route-advertise
to disable OSPF from distributing a default external route.
By default, no default route is distributed.
The
default-route-advertise
summary cost
command is applicable only to VPNs, and the default
route is redistributed in a Type-3 LSA. The PE router advertises the redistributed default route to the
CE router.
Using the
import-route
command cannot redistribute a default route. To redistribute a default route,
use the
default-route-advertise
command.
If neither the
always
nor
permit-calculate-other
keyword is specified, the router generates a default
route in a Type-5 LSA into the OSPF routing domain only when an active default route that does not
belong to the current OSPF process exists in the IP routing table. The router then does not calculate
default routes from other routers.
Related commands:
import-route
and
default
.
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