Cisco Nexus 7000 Series - Creating an Ospfv2 Instance

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6-15
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 6 Configuring OSPFv2
Configuring Basic OSPFv2
Creating an OSPFv2 Instance
The first step in configuring OSPFv2 is to create an OSPFv2 instance. You assign a unique instance tag
for this OSPFv2 instance. The instance tag can be any string.
For more information about OSPFv2 instance parameters, see the “Configuring Advanced OSPFv2”
section on page 6-23.
BEFORE YOU BEGIN
Ensure that you have enabled the OSPF feature (see the “Enabling the OSPFv2 Feature” section on
page 6-14).
Use the show ip ospf instance-tag command to verify that the instance tag is not in use.
OSPFv2 must be able to obtain a router identifier (for example, a configured loopback address) or you
must configure the router ID option.
Ensure that you are in the correct VDC (or use the switchto vdc command).
SUMMARY STEPS
1. config t
2. router ospf instance-tag
3. router-id ip-address
4. show ip ospf instance-tag
5. copy running-config startup-config
DETAILED STEPS
Command Purpose
no feature ospf
Example:
switch(config)# no feature ospf
Disables the OSPFv2 feature and removes all
associated configuration.
Command Purpose
Step 1
config t
Example:
switch# config t
switch(config)#
Enters configuration mode.
Step 2
router ospf instance-tag
Example:
switch(config)# router ospf 201
switch(config-router)#
Creates a new OSPFv2 instance with the configured
instance tag.