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Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 7 Configuring OSPFv3
Configuring Advanced OSPFv3
DETAILED STEPS
The following example shows how to enable graceful restart if it has been disabled, and set the grace
period to 120 seconds:
switch# config t
switch(config)# router ospfv3 201
switch(config-router)# graceful-restart
switch(config-router)# graceful-restart grace-period 120
switch(config-router)# copy running-config startup-config
Restarting an OSPFv3 Instance
You can restart an OSPv3 instance. This clears all neighbors for the instance.
Command Purpose
Step 1
config t
Example:
switch# config t
switch(config)#
Enters configuration mode.
Step 2
router ospfv3
instance-tag
Example:
switch(config)# router ospfv3 201
switch(config-router)#
Creates a new OSPFv3 instance with the configured
instance tag.
Step 3
graceful-restart
Example:
switch(config-router)# graceful-restart
Enables graceful restart. A graceful restart is enabled
by default.
Step 4
graceful-restart grace-period
seconds
Example:
switch(config-router)# graceful-restart
grace-period 120
Sets the grace period, in seconds. The range is from 5
to 1800. The default is 60 seconds.
Step 5
graceful-restart helper-disable
Example:
switch(config-router)# graceful-restart
helper-disable
Disables helper mode. Enabled by default.
Step 6
graceful-restart planned-only
Example:
switch(config-router)# graceful-restart
planned-only
Configures graceful restart for planned restarts only.
Step 7
show ipv6 ospfv3
instance-tag
Example:
switch(config-if)# show ipv6 ospfv3 201
(Optional) Displays OSPFv3 information.
Step 8
copy running-config startup-config
Example:
switch(config)# copy running-config
startup-config
(Optional) Saves this configuration change.