- Information About Basic Device Management
- Licensing Requirements for Basic Device Management
- Changing the Device Hostname
- Configuring the MOTD Banner
- Configuring the EXEC Banner
- Configuring the Time Zone
- Configuring Summer Time (Daylight Saving Time)
- Manually Setting the Device Clock
- Setting the Clock Manager
- Managing Users
- Verifying the Device Configuration
- Default Settings for Basic Device Parameters
- Additional References for Basic Device Management
Basic Device Management
This chapter contains the following sections:
- Information About Basic Device Management
- Licensing Requirements for Basic Device Management
- Changing the Device Hostname
- Configuring the MOTD Banner
- Configuring the EXEC Banner
- Configuring the Time Zone
- Configuring Summer Time (Daylight Saving Time)
- Manually Setting the Device Clock
- Setting the Clock Manager
- Managing Users
- Verifying the Device Configuration
- Default Settings for Basic Device Parameters
- Additional References for Basic Device Management
Information About Basic Device Management
This section provides information about basic device management.
- Device Hostname
- Message-of-the-Day Banner
- EXEC Banner
- Device Clock
- Clock Manager
- Time Zone and Summer Time (Daylight Saving Time)
- User Sessions
Device Hostname
You can change the device hostname displayed in the command prompt from the default (switch) to another character string. When you give the device a unique hostname, you can easily identify the device from the command-line interface (CLI) prompt.
Message-of-the-Day Banner
The message-of-the-day (MOTD) banner displays before the user login prompt on the device. This message can contain any information that you want to display for users of the device.
EXEC Banner
Starting with the Cisco NX-OS Release 7.3(0)N1(1), the EXEC banner is displayed after a user logs in to a switch. This banner can be used to post reminders to your network administrators.
Device Clock
If you do not synchronize your device with a valid outside timing mechanism, such as an NTP clock source, you can manually set the clock time when your device boots.
Clock Manager
The Cisco Nexus chassis may contain clocks of different types that may need to be synchronized. These clocks are a part of various components (such as the supervisor, LC processors, or line cards) and each may be using a different protocol.
The clock manager provides a way to synchronize these different clocks.
Time Zone and Summer Time (Daylight Saving Time)
You can configure the time zone and summer time (daylight saving time) setting for your device. These values offset the clock time from Coordinated Universal Time (UTC). UTC is International Atomic Time (TAI) with leap seconds added periodically to compensate for the Earth's slowing rotation. UTC was formerly called Greenwich Mean Time (GMT).
User Sessions
You can display the active user session on your device. You can also send messages to the user sessions. For more information about managing user sessions and accounts, see the Cisco Nexus security configuration guide for your device.
Licensing Requirements for Basic Device Management
The following table shows the licensing requirements for this feature:
Product |
License Requirement |
---|---|
Cisco NX-OS |
Basic device management requires no license. Any feature not included in a license package is bundled with the Cisco NX-OS system images and is provided at no extra charge to you. For a complete explanation of the Cisco NX-OS licensing scheme, see the Cisco NX-OS Licensing Guide. |
Changing the Device Hostname
You can change the device hostname displayed in the command prompt from the default (switch) to another character string.
1.
configure
terminal
2.
{hostname
|
switchname}
name
3.
exit
4.
(Optional)
copy running-config
startup-config
DETAILED STEPS
Configuring the MOTD Banner
You can configure the MOTD to display before the login prompt on the terminal when a user logs in. The MOTD banner has the following characteristics:
1.
configure terminal
2.
banner motd
delimiting-character message delimiting-character
3.
exit
4.
(Optional)
show banner motd
5.
(Optional)
copy running-config startup-config
DETAILED STEPS
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 |
configure terminal
Example: switch# configure terminal switch(config)# |
Enters global configuration mode. | ||
Step 2 |
banner motd
delimiting-character message delimiting-character
Example: switch(config)# banner motd #Welcome to the Switch# switch(config)# |
Configures the MOTD banner. Do not use the delimiting-character in the message text.
| ||
Step 3 |
exit
Example: switch(config)# exit switch# |
Exits global configuration mode. | ||
Step 4 |
show banner motd
Example: switch# show banner motd | (Optional)
Displays the configured MOTD banner. | ||
Step 5 |
copy running-config startup-config
Example: switch# copy running-config startup-config | (Optional)
Copies the running configuration to the startup configuration. |
Configuring the EXEC Banner
You can configure the EXEC banner to display a message when a user logs in to a device. The EXEC banner has the following characteristics:
1.
configure
terminal
2.
banner exec
delimiting-character message delimiting-character
3.
(Optional)
no banner exec
4.
exit
5.
(Optional)
show banner
exec
6.
(Optional)
copy running-config
startup-config
DETAILED STEPS
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 |
configure
terminal
Example: switch# configure terminal switch(config)# |
Enters global configuration mode. | ||
Step 2 |
banner exec
delimiting-character message delimiting-character
Example: switch(config)# banner exec #Welcome to the Test# switch(config)# |
Configures the EXEC banner. Do not use the delimiting-character in the message text. | ||
Step 3 |
no banner exec
Example: switch(config)# no banner exec | (Optional)
Resets the value of EXEC banner to the default value.
| ||
Step 4 |
exit
Example: switch(config)# exit switch# |
Exits global configuration mode. | ||
Step 5 |
show banner
exec
Example: switch# show banner exec | (Optional)
Displays the configured EXEC banner. | ||
Step 6 |
copy running-config
startup-config
Example: switch# copy running-config startup-config | (Optional)
Copies the running configuration to the startup configuration. |
Configuring the EXEC Banner
This example shows how to configure the EXEC banner.
# config t Enter configuration commands, one per line. End with CNTL/Z. switch(config)# banner exec #Unauthorized access to this device is prohibited!# switch(config)# exit switch# show banner exec Unauthorized access to this device is prohibited!
Configuring the Time Zone
You can configure the time zone to offset the device clock time from UTC.
1.
configure terminal
2.
clock timezone
zone-name offset-hours offset-minutes
3.
exit
4.
(Optional)
show clock
5.
(Optional)
copy running-config startup-config
DETAILED STEPS
Command or Action | Purpose | |
---|---|---|
Step 1 |
configure terminal
Example: switch# configure terminal switch(config)# |
Enters global configuration mode. |
Step 2 |
clock timezone
zone-name offset-hours offset-minutes
Example: switch(config)# clock timezone EST -5 0 |
Configures the time zone. The zone-name argument is a 3-character string for the time zone acronym (for example, PST or EST). The offset-hours argument is the offset from the UTC and the range is from –23 to 23 hours. The range for the offset-minutes argument is from 0 to 59 minutes. |
Step 3 |
exit
Example: switch(config)# exit switch# |
Exits global configuration mode. |
Step 4 |
show clock
Example: switch# show clock | (Optional)
Displays the time and time zone. |
Step 5 |
copy running-config startup-config
Example: switch# copy running-config startup-config | (Optional)
Copies the running configuration to the startup configuration. |
Configuring Summer Time (Daylight Saving Time)
You can configure when summer time, or daylight saving time, is in effect for the device and the offset in minutes.
1.
configure terminal
2.
clock summer-time
zone-name start-week start-day start-month start-time end-week end-day end-month end-time offset-minutes
3.
exit
4.
(Optional)
show clock detail
5.
(Optional)
copy running-config startup-config
DETAILED STEPS
Command or Action | Purpose | |
---|---|---|
Step 1 |
configure terminal
Example: switch# configure terminal switch(config)# |
Enters global configuration mode. |
Step 2 |
clock summer-time
zone-name start-week start-day start-month start-time end-week end-day end-month end-time offset-minutes
Example: switch(config)# clock summer-time PDT 1 Sunday March 02:00 1 Sunday November 02:00 60 |
Configures summer time or daylight saving time. The zone-name argument is a three character string for the time zone acronym (for example, PST and EST). The values for the start-day and end-day arguments are Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday. The values for the start-month and end-month arguments are January, February, March, April, May, June, July, August, September, October, November, and December. The value for the start-time and end-time arguments are in the format hh:mm. The range for the offset-minutes argument is from 0 to 1440 minutes. |
Step 3 |
exit
Example: switch(config)# exit switch# |
Exits global configuration mode. |
Step 4 |
show clock detail
Example: switch(config)# show clock detail | (Optional)
Displays the configured MOTD banner. |
Step 5 |
copy running-config startup-config
Example: switch# copy running-config startup-config | (Optional)
Copies the running configuration to the startup configuration. |
Manually Setting the Device Clock
You can set the clock manually if your device cannot access a remote time source.
Configure the time zone.
1.
clock set
time day month year
2.
(Optional)
show clock
DETAILED STEPS
Command or Action | Purpose | |
---|---|---|
Step 1 |
clock set
time day month year
Example: switch# clock set 15:00:00 30 May 2008 Fri May 30 15:14:00 PDT 2008 |
Configures the device clock. The format for the time argument is hh:mm:ss. The range for the day argument is from 1 to 31. The values for the month argument are January, February, March, April, May, June, July, August, September, October, November, and December. The range for the year argument is from 2000 to 2030. |
Step 2 |
show clock
Example: switch(config)# show clock | (Optional)
Displays the current clock value. |
Setting the Clock Manager
You can configure the clock manager to synchronize all the clocks of the components in the Cisco Nexus chassis.
1.
clock protocol
protocol
vdc
vdc-num
2.
(Optional) show run clock_manager
DETAILED STEPS
Command or Action | Purpose | |||||
---|---|---|---|---|---|---|
Step 1 |
clock protocol
protocol
vdc
vdc-num
Example: # clock protocol ptp vdc 2 |
Configures the clock manager. The values for the protocol argument are ptp, ntp, and none. The following describes the values:
The range for the vdc argument is 1 to 8. | ||||
Step 2 | show run clock_manager
Example: #show run clock_manager | (Optional)
Displays the configuration of the clock manager. |
Managing Users
You can display information about users logged into the device and send messages to those users.
Displaying Information about the User Sessions
You can display information about the user session on the device.
1.
show users
DETAILED STEPS
Command or Action | Purpose |
---|
Sending a Message to Users
You can send a message to active users currently using the device CLI.
1.
(Optional)
show users
2.
send [session
line] message-text
DETAILED STEPS
Command or Action | Purpose | |
---|---|---|
Step 1 |
show users
Example: switch# show users | (Optional)
Displays the active user sessions. |
Step 2 |
send [session
line] message-text
Example: switch# send Reloading the device is 10 minutes! |
Sends a message to all active users or to a specific user. The message can be up to 80 alphanumeric characters and is case sensitive. |
Verifying the Device Configuration
To verify the configuration after bootstrapping the device using POAP, use one of the following commands:
Command |
Purpose |
---|---|
show running-config |
Displays the running configuration. |
show startup-config |
Displays the startup configuration. |
For detailed information about the fields in the output from these commands, see the Cisco Nexus command reference for your device.
Default Settings for Basic Device Parameters
Parameters |
Default |
---|---|
MOTD banner text |
User Access Verification |
Clock time zone |
UTC |
Additional References for Basic Device Management
You can find additional information related to basic device management.
Related Documents for Basic Device Management
Related Topic |
Document Title |
---|---|
Licensing |
Cisco NX-OS Licensing Guide |
Command reference |
Cisco Nexus 7000 Series NX-OS Fundamentals Command ReferenceCisco Nexus 6000 Series Command Reference |