IP domain name configuration needed on core switch

[adeebtaqui]

Hi,

Kindly advise if IP domain name configuration is needed on core switch. What are its uses? 

sw(conft)#ip domain-name cisco.com 

[Rob Ingram]

@adeebtaqui 

A domain name would generally be required if you intend to manage the device using SSH.

SSH is preferred rather than using telnet for management of the device.

[paul driver]

Hello

One way the domain name can used on the router/switch is to append it to any host request that doesn't have a full FQDN prior to a dns lookup/query.

Example:
Switch: ip address = 10.10.10.10
hostname= switch1
domain name =  stan.com

FQDN = switch1@stan.com

@rob Ingram - FYI you do not need to specify any domain name to allow ssh to function, using a label when creating the crypto RSA key would be applicable.