Is-Is Configuration Grouping; Is-Is Configuration Modes; Router Configuration Mode; Router Address Family Configuration Mode - Cisco ASR 9000 Series Routing Configuration Manual

Implementing IS-IS
For information on IS-IS support for Bidirectional Forwarding Detection (BFD), see Cisco ASR 9000
Note
Series Aggregation Services Router Interface and Hardware Component Configuration Guide and
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command
Reference.

IS-IS Configuration Grouping

Cisco IOS XR groups all of the IS-IS configuration in router IS-IS configuration mode, including the portion
of the interface configurations associated with IS-IS. To display the IS-IS configuration in its entirety, use
the show running router isis command. The command output displays the running configuration for all
configured IS-IS instances, including the interface assignments and interface attributes.

IS-IS Configuration Modes

The following sections show how to enter each of the configuration modes. From a mode, you can enter the
? command to display the commands available in that mode.

Router Configuration Mode

The following example shows how to enter router configuration mode:
RP/0/RSP0/CPU0:router# configuration
RP/0/RSP0/CPU0:router(config)# router isis isp
RP/0/RSP0/CPU0:router(config-isis)#

Router Address Family Configuration Mode

The following example shows how to enter router address family configuration mode:
RP/0/RSP0/CPU0:router(config)# router isis isp
RP/0/RSP0/CPU0:router(config-isis)# address-family
ipv4 u
nicast
RP/0/RSP0/CPU0:router(config-isis-af)#

Interface Configuration Mode

The following example shows how to enter interface configuration mode:
RP/0/RSP0/CPU0:router(config)# router isis isp
RP/0/RSP0/CPU0:router(config-isis)# interface
/3/0/0
RP/0/RSP0/CPU0:router(config-isis-if)#
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
IS-IS Configuration Grouping
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