Specifications

Send document comments to [e-mail].
3-29
Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, Release 5.0(3)U2(2)
OL-25782-02
Chapter 3 Configuring OSPFv2
Configuring Advanced OSPFv2
DETAILED STEPS
You can configure the following optional commands in virtual link configuration mode:
Command Purpose
Step 1
configure terminal
Example:
switch# configure terminal
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.
Step 3
area area-id virtual-link router-id
Example:
switch(config-router)# area 0.0.0.10
virtual-link 10.1.2.3
switch(config-router-vlink)#
Creates one end of a virtual link to a remote router.
You must create the virtual link on that remote router
to complete the link.
Step 4
show ip ospf virtual-link [brief]
Example:
switch(config-router-vlink)# show ip ospf
virtual-link
(Optional) Displays OSPF virtual link information.
Step 5
copy running-config startup-config
Example:
switch(config-router-vlink)# copy
running-config startup-config
(Optional) Saves this configuration change.
Command or Action Purpose
authentication [key-chain key-id |
message-digest | null]
Example:
switch(config-router-vlink)#
authentication message-digest
(Optional) Overrides area-based authentication for this
virtual link.
authentication-key [0 | 3] key
Example:
switch(config-router-vlink)#
authentication-key 0 mypass
(Optional) Configures a simple password for this virtual
link. Use this command if the authentication is not set to
key-chain or message-digest. 0 configures the password
in clear text. 3 configures the password as 3DES
encrypted.
dead-interval seconds
Example:
switch(config-router-vlink)#
dead-interval 50
(Optional) Configures the OSPFv2 dead interval, in
seconds. The range is from 1 to 65535. The default is four
times the hello interval, in seconds.
hello-interval seconds
Example:
switch(config-router-vlink)#
hello-interval 25
(Optional) Configures the OSPFv2 hello interval, in
seconds. The range is from 1 to 65535. The default is 10
seconds.