3com S7906E Guide De Référence

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1-7 
Default Level 
2: System level 
Parameters 
always: Generates a default route in an ASE LSA into the OSPF routing domain regardless of whether 
a default route exists in the  routing table. Without this keyword used, the command can distribute a 
default route in a Type-5 LSA into the OSPF routing domain only when a default route exists in the 
routing table. 
cost cost: Specifies a cost for the default route, in the range 0 to 16777214. If no cost is specified, the 
default cost specified by the default cost command applies.. 
type type: Specifies a type for the ASE LSA: 1 or 2. If type is not specified, the default type for the ASE 
LSA specified by the default type command applies.. 
route-policy  route-policy-name: Specifies a route policy name, a string of 1 to 19 characters. If the 
default route matches the specified route policy, the route policy modifies some values in the ASE LSA. 
summary: Advertises the Type-3 summary LSA of the specified default route. 
Description 
Use the default-route-advertise command to generate a default route into the OSPF routing domain. 
Use the undo default-route-advertise command to disable OSPF from distributing a default external 
route. 
By default, no default route is distributed. 
Using the import-route command cannot redistribute a default route. To do so, use the 
default-route-advertise command. If no default route exists in the router's routing table, use the 
default-route-advertise always command to generate a default route in a Type-5 LSA. 
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. 
Related commands: import-route, default
Examples 
# Generate a default route in an ASE LSA into the OSPF routing domain (no default route configured on 
the router), regardless of whether the default route is available in the routing table. 
<Sysname> system-view 
[Sysname] ospf 100 
[Sysname-ospf-100] default-route-advertise always 
description (OSPF/OSPF area view) 
Syntax 
description description 
undo description 
View 
OSPF view/OSPF area view