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3Com Switch 7750 Series
Command Reference Guide – Routing Protocol Chapter 3 OSPF Configuration Commands
3-10
Parameter
always: Generates an ase lsa describing the default route and advertises it if the local
router is not configured with the default route. If this keyword is not provided, the local
router must be configured with the default route before it can import the ase lsa, which
generates the default route.
cost value: Specifies the cost value of this ase lsa. The value of value ranges from 0
to 16777214 and defaults to 1.
type type-value: Specifies the cost type of this ase lsa. The value of type-value
ranges from 1 to 2 and defaults 2.
route-policy route-policy-name: If the default route matches the route-policy
specified by route-policy-name, the route-policy will affect the value in ase lsa. The
route-policy-name argument is a string of 1 to 19 characters.
Description
Use the default-route-advertise command to import the default route to OSPF route
area.
Use the undo default-route-advertise command to cancel the import of the default
route.
By default, OSPF does not import the default route.
The import-route command cannot import the default route. To import the default
route to the route area, the default-route-advertise command must be used. If the
local router is not configured with the default route, the keyword always should be
specified so that ase lsa of the default route is generated.
Related command: import-route.
Example
# The ase lsa of the default route is generated only if the local router has the default
route.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] ospf 1
[3Com-ospf-1] default-route-advertise
# The ase lsa of default route will be generated and advertised to OSPF route area
even the local router has no default route.
[3Com-ospf-1] default-route-advertise always