Cisco NCS 6000 Series User Manual

8. show running-config [ command ]
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enables IS-IS routing for the specified routing instance,
and places the router in router configuration mode.
router isis instance-id
Example:
Step 2
• You can change the level of routing to be performed
by a particular routing instance by using the is-type
router configuration command.
RP/0/RP0/CPU0:router(config)# router isis isp
Enables NSF on the next restart.nsf { cisco | ietf }
Step 3
Example:
• Enter the cisco keyword to run IS-IS in heterogeneous
networks that might not have adjacent NSF-aware
networking devices.
RP/0/RP0/CPU0:router(config-isis)# nsf ietf
• Enter the ietf keyword to enable IS-IS in
homogeneous networks where all adjacent networking
devices support IETF draft-based restartability.
Configures the number of resends of an acknowledged
NSF-restart acknowledgment.
nsf interface-expires number
Example:
Step 4
• If the resend limit is reached during the NSF restart,
the restart falls back to a cold restart.
RP/0/RP0/CPU0:router(config-isis)# nsf
interface-expires 1
Configures the number of seconds to wait for each restart
acknowledgment.
nsf interface-timer seconds
Example:
Step 5
RP/0/RP0/CPU0:router(config-isis) nsf
interface-timer 15
Configures the maximum route lifetime following an NSF
restart.
nsf lifetime seconds
Example:
Step 6
• This command should be configured to the length of
time required to perform a full NSF restart because it
RP/0/RP0/CPU0:router(config-isis)# nsf lifetime 20
is the amount of time that the Routing Information
Base (RIB) retains the routes during the restart.
• Setting this value too high results in stale routes.
• Setting this value too low could result in routes purged
too soon.
commit
Step 7
(Optional) Displays the entire contents of the currently
running configuration file or a subset of that file.
show running-config [ command ]
Example:
Step 8
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
222
Implementing IS-IS
Configuring Nonstop Forwarding for IS-IS

Cisco NCS 6000 Series Specifications

General

Brand	Cisco
Model	NCS 6000 Series
Category	Network Router
Language	English