"domain" vs. "ip domain-name" global configuration commands

[coolbreeze]

Might someone be able to help explain the difference between the following global configuration mode "domain" commands their effects:  domain [domain name]  vs.  ip domain name [domain name]

Below is some example output of what I am seeing on two different Cisco ASR 1006X WAN aggregation hub routers, running same firmware version.

$$$$$$$$$$$ BEGIN ROUTER 1 SAMPLE OUTPUT $$$$$$$$$$$$$$

Router1#show version

Cisco IOS XE Software, Version 16.09.02
Cisco IOS Software [Fuji], ASR1000 Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 16.9.2, RELEASE SOFTWARE (fc4)

!

...

!

Router1#

Router1#sh run | inc domain

no ip domain lookup
ip domain name example.com
domain example.com

Router1#show domain all

 *** DOMAIN NAME:   example.com ***

Router1#

$$$$$$$$$$$$ END ROUTER 1 SAMPLE OUTPUT  $$$$$$$$$$$$$$

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

$$$$$$$$$$$ BEGIN ROUTER 2 SAMPLE OUTPUT  $$$$$$$$$$$$$$

Router2#show version

Cisco IOS XE Software, Version 16.09.02
Cisco IOS Software [Fuji], ASR1000 Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 16.9.2, RELEASE SOFTWARE (fc4)

!

...

!

Router2#

Router2#sh run | inc domain

ip domain name example.com

Router2#show domain all

Router2#

$$$$$$$$$$$$ END ROUTER 2 SAMPLE OUTPUT  $$$$$$$$$$$$$$

[balaji.bandi · Accepted solution]

As per your show output show that you using IOS XE Code.

based on that my comments :

domain

Configures the fabric domain and enters fabric-auto-domain configuration mode. The no version of this command deletes the fabric domain.

domain { default| name name }

no domain

Syntax Description

default	Configures the default fabric domain and enters fabric-auto domain configuration mode.
name name	Configures a new fabric domain and enters fabric-auto domain configuration mode.

Ip  Domain Name :   ( traditional domain config)

Defines a default domain name that the Cisco IOS software uses to complete unqualified host names (names without a dotted-decimal domain name).

[coolbreeze]

Thank you, for whatever reason I was having difficulty finding the right command reference for those for the version that included the "domain" command referring to the fabric domain.  Now I'm just doing a facepalm, but you answered my question, thank you!