500 Configuring Routing
Figure 9-6. OSPF Configuration
The OSPF Configuration page contains the following fields:
•
Router ID
— The 32-bit integer in dotted decimal format that uniquely identifies the router within
the autonomous system (AS). If you want to change the Router ID you must first disable OSPF. After
you set the new Router ID, you must re-enable OSPF to have the change take effect. The default value
is 0.0.0.0, although this is not a valid Router ID.
•
OSPF Admin Mode
— Select Enable or Disable from the drop-down menu. If you select Enable
OSPF is activated for the switch. The default value is Disable. You must configure a Router ID before
OSPF can become operational.
NOTE: Once OSPF is initialized on the router, it remains active until the router is reset.
•
ASBR Mode
— Reflects whether the ASBR mode is Enabled or Disabled. Enable implies that the
router is an autonomous system border router. Router automatically becomes an ASBR when it is
configured to redistribute routes learnt from other protocol.
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