Ospf interfaces – RuggedCom RuggedRouter RX1000 User Manual

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Chapter 13 – Configuring Dynamic Routing

The Redistribute Kernel fields control distribution of kernel routes. When enabled,
OSPF will advertise routes from the kernel routing table, which includes static routes
entered by the administrator, to other OSPF routers in the area. Normally only routes
that fall within the scope of the network areas will be advertised.
The Redistribute RIP fields control distribution of routes learned by RIP. When
enabled, OSPF will advertise routes learned by RIP.
The Router Id field sets the router-id to use for the ospf daemon. This value is used
as a unique identifier for the dynamic routing protocol to identify which router sent
which route advertisement. By default it uses the highest IP assigned to an interface
on the router. It is recommended that this value be set to a unique fixed IP on each
router.

OSPF Interfaces

Figure 123: OSPF Interfaces

Parameters specific to one interface are configured here.
Each interface on the router is listed. Clicking on settings displays a menu of
configuration options for that interface. Clicking on status displays the current status
of the interface, including link state and current OSPF status on the interface. If an
interface is not part of an area it will show up as OSPF not enabled on interface.
Clicking “Remove inactive interfaces” purges the list of any interfaces which are no
longer configured on the router.
The Cost field controls the administrative cost of routing over this interface. By
default the cost is auto calculated as the ospf reference bandwidth divided by the core
interface bandwidth. By default this is 100Mbit/10Mbit = cost 10.
The Priority field controls the priority associated with this interface. By default the
priority of interfaces is 1. The router with the highest priority wins elections for
designated router for an area.
The Hello Interval field controls how often hello packets are sent to other routers in
the area. This value must match on all router interfaces in an area.
The Dead Interval field controls how long to wait for hello packets before declaring
another router dead. This should normally be set to 4 times the hello interval.
The Retransmit Interval field controls the delay between retransmissions.

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