Banner

Banner configuration defines text messages displayed to users during device access on NX-OS, providing legal notices, usage warnings, and operational information before and after login. It supports both message-of-the-day (MOTD) banners shown at initial connection and exec banners displayed after successful authentication, enabling compliance with security policies requiring authorized-use notifications. Banners are essential for establishing legal standing regarding unauthorized access and communicating important operational information to network administrators.

Diagram

Classes

nxos

Name	Type	Constraint	Mandatory	Default Value
devices	List	devices	No
device_groups	List	device_groups	No
global	Class	global	No
templates	List	templates	No

devices (nxos)

Name	Type	Constraint	Mandatory	Default Value
configuration	Class	configuration	No

device_groups (nxos)

Name	Type	Constraint	Mandatory	Default Value
configuration	Class	configuration	No

global (nxos)

Name	Type	Constraint	Mandatory	Default Value
configuration	Class	configuration	No

templates (nxos)

Name	Type	Constraint	Mandatory	Default Value
configuration	Class	configuration	No

configuration (nxos.devices)

Name	Type	Constraint	Mandatory	Default Value
banner	Class	banner	No

banner (nxos.devices.configuration)

Name	Type	Constraint	Mandatory	Default Value
motd	String		No
exec	String		No

Examples

Example 1: MOTD banner with authorized access warning

nxos:
  devices:
    - name: LEAF1
      configuration:
        banner:
          motd: >-
            *** AUTHORIZED ACCESS ONLY ***
            This system is the property of Example Corp.
            Unauthorized access is strictly prohibited and
            will be prosecuted to the fullest extent of the law.
            All activity is monitored and logged.

Example 2: Both MOTD and exec banners for production fabric switches

nxos:
  devices:
    - name: SPINE1
      configuration:
        banner:
          motd: >-
            *** WARNING: AUTHORIZED PERSONNEL ONLY ***
            This network device is part of the Example Corp
            production data center fabric. Disconnect immediately
            if you are not an authorized administrator.
            All sessions are logged and monitored.
          exec: >-
            You are connected to SPINE1 - Production DC Fabric.
            Change control policy applies to all configuration changes.
            Contact NOC at noc@example.com for emergency support.