Configuring A Totally Stubby Area - Cisco Nexus 7000 Series Configuration Manual

Configuring Advanced OSPFv3
S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m .
3.
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DETAILED STEPS
Command
Step 1
config t
Example:
switch# config t
switch(config)#
Step 2
router ospfv3 instance-tag
Example:
switch(config)# router ospfv3 201
switch(config-router)#
Step 3
area area-id stub
Example:
switch(config-router)# area 0.0.0.10
stub
Step 4
address-family ipv6 unicast
Example:
switch(config-router)# address-family
ipv6 unicast
switch(config-router-af)#
Step 5
area area-id default-cost cost
Example:
switch(config-router-af)# area 0.0.0.10
default-cost 25
Step 6
copy running-config startup-config
Example:
switch(config-router)# copy
running-config startup-config
The following example shows how to create a stub area that blocks all summary route updates:
switch# config t
switch(config)# router ospfv3 201
switch(config-router)# area 0.0.0.10 stub no-summary
switch(config-router)# copy running-config startup-config

Configuring a Totally Stubby Area

You can create a totally stubby area and prevent all summary route updates from going into the stub area.
To create a totally stubby area, use the following command in router configuration mode:
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
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area area-id stub
address-family ipv6 unicast
area area-id default-cost cost
copy running-config startup-config
Purpose
Enters configuration mode.
Creates a new OSPFv3 instance with the configured
instance tag.
Creates this area as a stub area.
(Optional) Enters IPv6 unicast address family mode.
(Optional) Sets the cost metric for the default summary
route sent into this stub area. The range is from 0 to
16777215.
(Optional) Saves this configuration change.
Chapter 7 Configuring OSPFv3
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