Fortinet 548B - Manual (Page 793)

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Configurable Data
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 pulldown menu. If you select enable OSPF
will be activated for the switch. The default value is disable. You must configure a Router ID before
OSPF can become operational. You do this on the IP Configuration page or by issuing the CLI
command: config router id.
!
Once OSPF is initialized on the router, it will remain initialized until the router is reset.
RFC 1583 Compatibility - Select enable or disable from the pulldown menu to specify the
preference rules that will be used when choosing among multiple AS-external-LSAs advertising the
same destination. If you select enable, the preference rules will be those defined by RFC 1583. If
you select disable, the preference rules will be those defined in Section 16.4.1 of the OSPF-2
standard (RFC 2328), which will prevent routing loops when AS-external-LSAs for the same
destination have been originated from different areas. The default value is 'enable'. To prevent
routing loops, you should select 'disable', but only if all OSPF routers in the routing domain are
capable of operating according to RFC 2328.
Exit Overflow Interval (secs)- Enter the number of seconds that, after entering overflow state, the
router should wait before attempting to leave overflow state. This allows the router to again originate
non-default AS-external-LSAs. If you enter 0, the router will not leave Overflow State until restarted.
The range is 0 to 2147483647 seconds.
SPF DelayTime(secs) - Enter the number of seconds, Delay time (in seconds)is the time between
when OSPF receives a topology change and when it starts an SPF calculation. It can be an integer
from 0 to 65535. The default time is 5 seconds. A value of 0 means that there is no delay; that is, the
SPF calculation is started immediately.
SPF HoldTime(secs) - Enter the number of seconds, minimum time (in seconds) between two
consecutive SPF calculations.It can be an integer from 0 to 65535. The default time is 10 seconds. A
value of 0 means that there is no delay; that is, two SPF calculations can be done, one immediately
after the other.
Default Metric - Sets a default for the metric of redistributed routes.This field displays the default
metric if one has already been set or blank if not configured earlier. The valid values are (1 to
16777215)
Maximum Paths - Sets the maximum number of paths that OSPF can report for a given destination.
The valid values are (1 to 6).
Default Information Originate - Enable or Disable Default Route Advertise.
Always - Sets the router advertise 0.0.0.0/0.0.0.0 when set to "True".
Metric - Specifies the metric of the default route. The valid values are (0 to 16777215)
Metric Type - Sets the metric type of the default route.
Non-Configurable Data
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.