How To Setup Banner display On A Cisco Router \ Switch

How To:
On Cisco Routers and Switches we have the option to set up a banner display when people log in to the device.

Solution:
To setup welcome banner on a cisco device we need to use the banner command:

Banner Command:

switch(config)#banner ?
LINE            c banner-text c, where ‘c’ is a delimiting character
config-save     Set message for saving configuration
exec            Set EXEC process creation banner
incoming        Set incoming terminal line banner
login           Set login banner
motd            Set Message of the Day banner
prompt-timeout  Set Message for login authentication timeout
slip-ppp        Set Message for SLIP/PPP

Example on how to set up a login banner:

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switch#config t
Enter configuration commands, one per line.  End with CNTL/Z.
VSW2(config)#banner login Z ########### MY SWITCH ########## Z