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6-17
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 6 Configuring OSPFv2
Configuring Basic OSPFv2
DETAILED STEPS
You can configure the following optional parameters for OSPFv2 in router configuration mode:
The following example shows how to create an OSPFv2 instance:
switch# config t
switch(config)# router ospf 201
switch(config-router)# copy running-config startup-config
Configuring Networks in OSPFv2
You can configure a network to OSPFv2 by associating it through the interface that the router uses to
connect to that network (see the “Neighbors” section on page 6-2). You can add all networks to the
default backbone area (Area 0), or you can create new areas using any decimal number or an IP address.
Note All areas must connect to the backbone area either directly or through a virtual link.
Note OSPF is not enabled on an interface until you configure a valid IP address for that interface.
BEFORE YOU BEGIN
Ensure that you have enabled the OSPF feature (see the “Enabling the OSPFv2 Feature” section on
page 6-14).
Ensure that you are in the correct VDC (or use the switchto vdc command).
SUMMARY STEPS
1. config t
2. interface interface-type slot/port
3. ip address ip-prefix/length
4. ip router ospf instance-tag area area-id [secondaries none]
Command Purpose
distance
number
Example:
switch(config-router)# distance 25
Configures the administrative distance for this
OSPFv2 instance. The range is from 1 to 255. The
default is 110.
log-adjacency-changes [detail]
Example:
switch(config-router)#
log-adjacency-changes
Generates a system message whenever a neighbor
changes state.
maximum-paths
path-number
Example:
switch(config-router)# maximum-paths 4
Configures the maximum number of equal OSPFv2
paths to a destination in the route table. This
command is used for load balancing. The range is
from 1 to 16. The default is 8.
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