Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 684)

656 Multi-Service IronWare Routing Configuration Guide
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Configuring OSPFv3
To reset the maximum number of entries to its system default, enter the no form of this command.
Setting all OSPFv3 interfaces to the passive state
You can set all the Open Shortest Path First Version 3 (OSPFv3) interfaces to the default passive
state using the default-passive-interface command. When you configure the interfaces as passive,
the interfaces drop all the OSPFv3 control packets.
To set all the OSPFv3 interfaces to passive, enter the following commands.
Brocade# configure terminal
Brocade(config)# ipv6 router ospf vrf A
Brocade(config-ospf6-router-vrf-A)# default-passive-interface
Syntax: [no] default-passive-interface
Modifying OSPFv3 interface defaults
OSPFv3 has interface parameters that you can configure. For simplicity, each of these parameters
has a default value. No change to these default values is required except as needed for specific
network configurations.
You can modify the default values for the following OSPF interface parameters:
• Cost: Indicates the overhead required to send a packet across an interface. You can modify the
cost to differentiate between 100 Mbps and 1000 Mbps (1 Gbps) links. The command syntax
is ipv6 ospf cost number. The default cost is calculated by dividing 100 million by the
bandwidth. For 10 Mbps links, the cost is 10. The cost for both 100 Mbps and 1000 Mbps links
is 1, because the speed of 1000 Mbps was not in use at the time the OSPF cost formula was
devised.
• Dead-interval: Indicates the number of seconds that a neighbor router waits for a hello packet
from the device before declaring the router down. The command syntax is ipv6 ospf
dead-interval seconds. The value can be from 1 – 2147483647 seconds. The default is 40
seconds.
• Hello-interval: Represents the length of time between the transmission of hello packets. The
command syntax is ipv6 ospf hello-interval seconds. The value can be from 1 – 65535
seconds. The default is 10 seconds.
• Instance: Indicates the number of OSPFv3 instances running on an interface. The command
syntax is ipv6 ospf instance number. The value can be from 0 – 255. The default is 1.
• MTU-ignore: Allows you to disable a check that verifies the same MTU is used on an interface
shared by neighbors. The command syntax is ipv6 ospf mtu-ignore. By default, the mismatch
detection is enabled.
• Network: Allows you to configure the OSPF network type. The command syntax is ipv6 ospf
network [point-to-multipoint]. The default setting of the parameter depends on the network
type.
• Passive: When you configure an OSPF interface to be passive, that interface does not send or
receive OSPF route updates. This option affects all IPv6 subnets configured on the interface.
The command syntax is ipv6 ospf passive. By default, all OSPF interfaces are active and thus
can send and receive OSPF route information. Since a passive interface does not send or
receive route information, the interface is in effect a stub network.