Siemens RUGGEDCOM ROX II User Manual page 414

Chapter 5
Setup and Configuration
1. Make sure the CLI is in Configuration mode.
2. Navigate to either:
• For Standard OSPF Routes
routing » dynamic » ospf » interface » {name}
• For VRF Routes via OSPF
routing » dynamic » ospf » vrf » {vrf} » interface » {name}
Where:
• {vrf} is the chosen VRF
• {name} is the name of the interface
3. Configure the dead interval settings by typing the following commands:
NOTE
For reliable operation, it is recommended that the dead-interval value be at least four times
the number of Hellos per second.
NOTE
Lower values of dead-interval and minimal-hello-multiplier will help speed up the
change in network routes when the topology of the network changes. It will also increase the load
on the router and the links, due to higher traffic caused by the increase in messages.
Lower values will also put limits on the number of routes that can be distributed within an OSPF
network area, as will running over slower links.
IMPORTANT!
The dead-interval and number of Hellos per second must be identical on every router in an
OSPF network area.
Parameter
dead-interval { dead-interval }
minimal-hello-multiplier { minimal-hello-multiplier }
4. Configure the interface settings by typing the following commands:
NOTE
Link detection is enabled automatically for active network interfaces. It makes sure the appropriate
routing daemon is notified when an interface goes down and stops advertising subnets associated
with that interface. The routing daemon resumes advertising the subnet when the link is restored.
This allows routing daemons to detect link failures more rapidly, as the router does not have to
wait for the dead interval to time out. Link detection also causes redistributed routes to start and
stop being advertised based on the status of their interface links.
NOTE
The link cost determines which route to use when multiple links can reach a given destination.
By default, OSPF assigns the same cost to all links unless it is provided with extra information
about the links. Each interface is assumed to be 10 Mbit, unless otherwise specified by the auto-
376
Description
Synopsis: An integer between 1 and 65535
Default: 40
The time before considering a router dead (in seconds).
Synopsis: An integer between 1 and 10
The number of times a hello message can be sent within one
second.
RUGGEDCOM ROX II
CLI User Guide
Configuring a Routing Interface