Configuring Stub Areas - Cisco Nexus 3000 Series Configuration Manual

Configuring Advanced OSPFv2
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 3 k - d o c f e e d b a c k @ c i s c o . c o m
Command
Step 4
show ip ospf policy statistics area id
filter-list {in | out}
Example:
switch(config-if)# show ip ospf policy
statistics area 0.0.0.10 filter-list in
Step 5
copy running-config startup-config
Example:
switch(config)# copy running-config
startup-config
This example shows how to configure a filter list in area 0.0.0.10:
switch# configure terminal
switch(config)# router ospf 201
switch(config-router)# area 0.0.0.10 filter-list route-map FilterLSAs in
switch(config-router)# copy running-config startup-config

Configuring Stub Areas

You can configure a stub area for part of an OSPFv2 domain where external traffic is not necessary. Stub
areas block AS External (type 5) LSAs, limiting unnecessary routing to and from selected networks. See
the
stub area.
BEFORE YOU BEGIN
Ensure that you have enabled the OSPF feature (see the
page
Ensure that there are no virtual links or ASBRs in the proposed stub area.
SUMMARY STEPS
1.
2.
3.
4.
5.
6.
Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, NX-OS Release 5.0(3)U1(1)
3-24
"Stub Area" section on page
3-13).
configure terminal
router ospf instance-tag
area area-id stub
(Optional) area area-id default-cost cost
(Optional) show ip ospf instance-tag
(Optional) copy running-config startup-config
Purpose
(Optional) Displays OSPF policy information.
(Optional) Saves this configuration change.
3-8. You can optionally block all summary routes from going into the
"Enabling the OSPFv2 Feature" section on
Chapter 3 Configuring OSPFv2