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9-23
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 9 Configuring IS-IS
Configuring IS-IS
5. show running-config isis
6. copy running-config startup-config
DETAILED STEPS
The following example shows how to enable a graceful restart:
switch# config t
switch(config)# router isis Enterprise
switch(config-router)# graceful-restart
switch(config-router)# copy running-config startup-config
Configuring Virtualization
You can configure multiple IS-IS instances in each VDC. You can also create multiple VRFs within each
VDC and use the same or multiple IS-IS instances in each VRF. You assign an IS-IS interface to a VRF.
You must configure a NET for the configured VRF.
Note Configure all other parameters for an interface after you configure the VRF for an interface. Configuring
a VRF for an interface deletes all the configuration for that interface.
Command Purpose
Step 1
config t
Example:
switch# config t
switch(config)#
Enters configuration mode.
Step 2
router isis
instance-tag
Example:
switch(config)# router isis Enterprise
switch(config-router)#
Creates a new IS-IS process with the configured name.
Step 3
graceful-restart
Example:
switch(config-router)# graceful-restart
Enables a graceful restart and the graceful restart
helper functionality. Enabled by default.
Step 4
graceful-restart t3 manual
time
Example:
switch(config-router)# graceful-restart
t3 manual 300
Configures the graceful restart T3 timer. The range is
from 30 to 65535 seconds. The default is 60.
Step 5
show running-config isis
Example:
switch(config-router)# show
running-config isis
(Optional) Displays the IS-IS configuration.
Step 6
copy running-config startup-config
Example:
switch(config-router)# copy
running-config startup-config
(Optional) Saves this configuration change.