Configuring Ospf To Create The Default Route - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
relevant protocol information, such as the number used to distinguish different ASs
when OSPF receives BGP.
Perform the following configuration in OSPF view.
Table 4-9 Configure parameters for OSPF to redistribute external routes
Configure the minimum interval for
OSPF to redistribute the external routes
Restore
minimum
redistribute the external routes
Configure upper limit for OSPF to
redistribute routes each time
Restore the default upper limit for OSPF
to redistribute routes each time
Configure the default cost for OSPF to
receive external routes
Restore the default cost for OSPF to
receive external routes
Configure the default tag when OSPF
receives external routes
Restore the default tag when OSPF
receives external routes
Configure the default type of external
routes that OSPF will redistribute
Restore the default type of the external
routes redistributed by OSPF
By default, cost is 1, type is 2, and tag is 1 for redistributed routes; route redistribution
interval is 1 second; the upper limit to the external routes redistributed is 1000 per
second.

4.2.9 Configuring OSPF to Create the Default Route

By default, no default route is configured for general OSPF areas (backbone area and
non-backbone areas), and you cannot redistribute default route into OSPF routing
domain by using the import-route command.
You can use the default-route-advertise command to generate and advertise a
default route in OSPF area. You need to care for these points in this process:
Using the default-route-advertise command at ASBR or ABR in general OSPF
area, you can generate a default route which is advertised by the Type-5 LSA into
OSPF area.
Operation
the default value
interval for OSPF
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default interval seconds
of the
to undo default interval
default limit routes
undo default limit
default cost value
undo default cost
default tag tag
undo default tag
default type { 1 | 2 }
undo default type
4-15
Chapter 4 OSPF Configuration
Command