Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 662)

634 Multi-Service IronWare Routing Configuration Guide
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Configuring OSPFv3
• Modify how often the device checks on the elimination of the database overflow condition.
• Modify the external link state database limit.
• Modify the default values of OSPFv3 parameters for device interfaces.
• Disable or re-enable OSPFv3 event logging.
• Set all the OSPFv3 interfaces to the passive state.
Enabling OSPFv3
Before enabling the device to run OSPFv3, you must perform the following steps.
• Enable the forwarding of IPv6 traffic on the device using the ipv6 unicast-routing command.
• Enable IPv6 on each interface over which you plan to enable OSPFv3. You enable IPv6 on an
interface by configuring an IPv6 address or explicitly enabling IPv6 on that interface.
By default, OSPFv3 is disabled. To enable OSPFv3 for a default Virtual Routing and Forwarding
(VRF), you must enable it globally.
To enable OSPFv3 globally, enter the following command.
Brocade(config)# ipv6 router ospf
Brocade(config-ospf6-router)#
After you enter this command, the device enters the IPv6 OSPF configuration level, where you can
access several commands that allow you to configure OSPFv3.
Syntax: [no] ipv6 router ospf [vrf]
To disable OSPFv3, enter the no form of this command. If you disable OSPFv3, the device removes
all the configuration information for the disabled protocol from the running-configuration file.
Moreover, when you save the configuration to the startup-config file after disabling one of these
protocols, all the configuration information for the disabled protocol is removed from the
startup-config file.
When you disable OSPFv3, the following warning message is displayed on the console.
Brocade(config-ospf6-router)# no ipv6 router ospf
ipv6 router ospf mode now disabled. All ospf config data will be lost when writing
to flash!
If you have disabled the protocol but have not yet saved the configuration to the startup-config file
and reloaded the software, you can restore the configuration information by re-entering the
command to enable the protocol (for example, ipv6 router ospf). If you have already saved the
configuration to the startup-config file and reloaded the software, the configuration information is
gone. If you are testing an OSPF configuration and are likely to disable and re-enable the protocol,
you should make a backup copy of the startup-config file containing the protocol configuration
information. This way, if you remove the configuration information by saving the configuration after
disabling the protocol, you can restore the configuration by copying the backup copy of the
startup-config file onto the flash memory.
Assigning OSPFv3 areas
After OSPFv3 is enabled, you can assign OSPFv3 areas. You can assign an IPv6 address or a
number as the area ID for each area. The area ID is representative of all IPv6 addresses (subnets)
on a device interface. Each device interface can support one area.