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● A planned restart occurs when you enter the redundancy force-failover rpm command to
force the primary RPM to switch to the backup RPM. During a planned restart, OSPF sends out a
Type-11 Grace LSA before the system switches over to the backup RPM.
● An unplanned restart occurs when an unplanned event causes the active RPM to switch to the
backup RPM, such as when an active process crashes, the active RPM is removed, or a power failure
happens. During an unplanned restart, OSPF sends out a Grace LSA when the backup RPM comes
online.
By default, both planned and unplanned restarts trigger an OSPFv3 graceful restart. Selecting one or the
other mode restricts OSPFv3 to the single selected mode.
ipv6 ospf area
Enable IPv6 OSPF on an interface.
Syntax
ipv6 ospf process id area area id
To disable OSPFv6 routing for an interface, use the no ipv6 ospf process-id area area-id
command.
Parameters
process-id Enter the process identification number.
area area-id Specify the OSPF area. The range is from 0 to 4294967295.
Defaults none
Command Modes INTERFACE
Supported Modes Full—Switch
Command
History
Version Description
9.14(0.2) Increased the area ID value from 65535 to 4294967295.
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
ipv6 ospf authentication
Enable IPv6 OSPF on an interface.
Syntax
ipv6 ospf authentication {null | ipsec spi number {MD5 | SHA1} [key-
encryption-type] key}}
To remove an IPsec authentication policy from an interface, use the no ipv6 ospf
authentication spi number command.
To remove null authentication on an interface to allow the interface to inherit the authentication policy
configured for the OSPFv3 area, use the no ipv6 ospf authentication null command.
Parameters
null Causes an authentication policy configured for the area to not be inherited on the
interface.
ipsec spi number Security Policy index (SPI) value that identifies an IPsec security policy. The range
is from 256 to 4294967295.
MD5 | SHA1
Authentication type: Message Digest 5 (MD5) or Secure Hash Algorithm 1 (SHA-1).
key-encryption-
type
(OPTIONAL) Specifies if the key is encrypted.
Valid values: 0 (key is not encrypted) or 7 (key is encrypted).
key
Text string used in authentication.
Open Shortest Path First (OSPFv2 and OSPFv3) 869