Nokia IPSO 4.0 Reference Manual page 361

Table 24 Global Settings for OSPF
Parameter
RFC1583
Compatibility
SPF Delay
SPF Hold
Default ASE
Route Cost
Default ASE
Route Type
Nokia Network Voyager for IPSO 4.0 Reference Guide
Description
This implementation of OSPF is based on RFC2178, which fixed some looping
problems in an earlier specification of OSPF. If your implementation is running in an
environment with OSPF implementations based on RFC1583 or earlier, enable RFC
1583 compatibility to ensure backwards compatibility.
Specifies the time in seconds the system will wait to recalculate the OSPF routing
table after a change in topology. Default is 2. Range is 1-60.
Specifies the minimum time in seconds between recalculations of the OSPF routing
table. Default is 5. Range is 1-60.
Specifies a cost for routes redistributed into OSPF as ASEs. Any cost previously
assigned to a redistributed routed overrides this value.
Specifies a route type for routes redistributed into OSPF as ASEs, unless these routes
already have a type assigned.
There are two types:
• Type 1 external: Used for routes imported into OSPF which are from IGPs whose
metrics are directly comparable to OSPF metrics. When a routing decision is being
made, OSPF adds the internal cost to the AS border router to the external metric.
• Type 2 external: Used for routes whose metrics are not comparable to OSPF
internal metrics. In this case, only the external OSPF cost is used. In the event of
ties, the least cost to an AS border router is used.
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