Cradlepoint IBR1100 User Manual page 64

User Manual / IBR1100/IBR1150
• Priority: The router with the highest priority will be more eligible to become Designated Router. Setting
this to 0 disables this router from participating in DR elections.
• Intervals: Set hello intervals. Hello sets the number of seconds for the Hello Interval timer value. Setting
this value, Hello packets will be sent every timer value seconds. This value must be the same for all routers
in the area. The default value is 10 seconds. Dead sets the number of seconds for the Router Dead Interval
timer value used for Wait Timer and Inactivity Timer. This value must be the same for all routers attached
an area. The default value is 40 seconds. Retransmit sets the number of seconds between retransmitting
lost link state advertisements.
• Sub-second Hellos: Enable sub-second Hellos and set the number of Hellos per second. When set, Dead
Interval is set to one second.
Areas
• Area: Areas are identified by a unique ID which
may be a 32-bit unsigned integer or a dotted quad
(like an IP address).
• Default Cost: Set the cost of default-summary
LSAs announced to stubby areas.
• Options: Set options for this area. Stub indicates
that this area is a stub and no area router will
propagate routes external to OSPF and AS-
External LSAs (Type-5s) or ASBR-Summary LSAs
(Type-4) will be propagated into the area. Only
Network-Summary (Type-3) and default-route summary advertisements will be propagated. Not-So-Stubby
indicates this area is Not-So-Stubby or NSSA. This is similar to a stubby area except external routes are
propagated as Type-7 LSAs. NSSA Type-7 NSSAs can optionally be configured to be translated to Type-5
LSAs with the NSSA Translate option set. No Summary Prevents ABR from injecting inter-area summaries
into the specified stub or Not-So-Stubby area. Default routes will be injected as a type 3 summary LSA.
• NSSA Type 7-to-5 Translation: Method of translating Type-7 LSAs to Type-5 when propagating external
routes. Via Election indicates this router is an NSSA Border Router but other border routers exist in the
topology. It will perform Type-7 to Type-5 translation unless another border router has Always set or is set
to Via Election and has a higher router-id. Always indicates this is an NSSA Border Router and must always
perform Type-7 tp Type-5 LSA translations. Never indicates that this router must never perform Type-7 to
Type-5 LSA translations.
• Shortcut: Enable or disable shortcuts through non-backbone areas. Default will shortcut only if the
backbone link is down. Requires that ABR Type be set to Shortcut.
• Access-List Filter: Filter Type-3 summary LSAs to/from area using access lists. This is only applicable on
ABR.
• Prefix-List Filter: Filter Type-3 summary LSAs to/from area using prefix lists. This is only applicable on
ABR.
Redistribute
• Default Originate: Enable
broadcasting default route. Always
will cause the default route
(0.0.0.0/0) to be broadcast even if
it is not in the routing table. Metric
specifies the metric of the default
route. Metric Type is the OSPF metric
type (default Type-2). Route Map specifies an optional route map to filter routes.
• Default Metric: Specify the default metric for routes redistributed to OSPF. This can be overridden under
the Redistribute configuration.
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