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106 CHAPTER 8: CONFIGURING BRIDGING AND ROUTING
This command adds the address 130.10.112.0 with subnet mask
255.255.255.0 to the routing table.
Override Option
If a destination network is reachable with both a static route and a
learned route, the router uses the static route unless you specify the
optional Override value in the ADD ROUte command. In that case, if a
learned route is available to the same network, regardless of metric, it
overrides the static route. You should specify Override for a path you
want to use for route redundancy. The Override value is entered at the
end of the command.
To add the same static route as described earlier with the Override value
included, enter:
ADD -IP ROUte 130.10.112.0 255.255.255.0 130.10.109.5 3 Override
Learning Routes
with OSPF
OSPF is a dynamic routing protocol that creates routing tables
automatically. For information about other dynamic routing protocols like
RIP, see Using Enterprise OS Software.
Every 30 minutes or every time the router learns a route change for a
network, it uses multicast packets to report to its neighbors the following
types of information:
■ The networks and the directly connected routers
■ The metric associated with each directly connected router and
network
In an unchanging topology, OSPF only sends updates every 30 minutes
while RIP sends updates every 30 seconds. OSPF provides a significant
savings in network overhead when compared to RIP.
To enable OSPF on a specified port, use:
SETDefault !<port> -OSPF CONTrol = Enable
After OSPF is enabled, the router exchanges routing information with
other routers using OSPF.
For more information about fine-tuning your OSPF configuration, see
Using Enterprise OS Software.