Aruba JH255A Configuration Guide

Brand: Aruba

Model: JH255A

Type: Configuration Guide

HPE FlexFabric 12900E Switch Series

System Management Configuration Guide

Software

version: Release 5210

Document version: 6W100-20230424

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Acknowledgments

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Contents

Performing basic device management ··························································· 1

Configuring the device name ····························································································································· 1

Configuring the system time······························································································································· 1

About the system time ································································································································ 1

Restrictions and guidelines for configuring the system time ······································································ 1

System time configuration tasks at a glance ······························································································ 1

Setting the system time at the CLI ············································································································· 2

Obtaining the UTC time through a time protocol ························································································ 2

Setting the time zone ································································································································· 2

Setting the daylight saving time ················································································································· 3

Displaying system time information············································································································ 3

Displaying copyright information ························································································································ 3

Enabling copyright statement display ········································································································· 3

Displaying detailed copyright information··································································································· 4

Configuring banners ··········································································································································· 4

Scheduling a task ··············································································································································· 5

About task scheduling ································································································································ 5

Restrictions and guidelines ························································································································ 5

Procedure ··················································································································································· 6

Verifying and maintaining task scheduling ································································································· 7

Example: Scheduling a task ······················································································································· 7

Isolating switching fabric modules···················································································································· 10

Isolating a service module································································································································ 11

Suppressing removal interrupt signals from switching fabric modules····························································· 11

Rebooting the device ······································································································································· 12

About device reboot ································································································································· 12

Restrictions and guidelines for device reboot ·························································································· 12

Rebooting the device immediately at the CLI··························································································· 12

Scheduling a device reboot ······················································································································ 13

Restoring the factory-default configuration ······································································································ 13

Collecting operating statistics for diagnostics and troubleshooting ·································································· 14

Verifying device stability ··································································································································· 14

Hardening the device ··················································································· 15

Device hardening tasks at a glance ················································································································· 15

Disabling password recovery capability ··········································································································· 15

Disabling USB interfaces ································································································································· 15

Managing hardware resources ···································································· 17

Hardware resource management tasks at a glance························································································· 17

Monitoring CPU usage ····································································································································· 18

Configuring CPU usage alarm ················································································································· 18

Configuring CPU usage tracking ·············································································································· 20

Configuring CPU diagnostic troubleshooting ··························································································· 20

Displaying CPU usage monitoring information························································································· 20

Monitoring CPU cores ······································································································································ 20

Monitoring CPU core usage ····················································································································· 20

Monitoring memory usage································································································································ 21

Setting memory alarm thresholds ············································································································ 21

Configuring memory diagnostic troubleshooting ······················································································ 22

Displaying memory usage monitoring information ··················································································· 23

Monitoring MDB resources······························································································································· 23

Specifying the allocation mode for MDB resources ················································································· 23

Displaying the MDB resources allocation mode ······················································································· 23

Monitoring resource usage······························································································································· 23

Configuring resource monitoring ·············································································································· 23

Displaying resource monitoring information ····························································································· 25

Monitoring device temperature························································································································· 25

Setting the temperature alarm thresholds ································································································ 25

Displaying device temperature information ······························································································ 25

Configuring hardware failure detection and protection ···················································································· 25

Specifying the actions to be taken for hardware failures ·········································································· 26

Enabling hardware failure protection for aggregation groups ·································································· 26

Enabling chip reset··········································································································································· 26

Managing power supply ··································································································································· 27

About power supply management············································································································ 27

Power supply management tasks at a glance ·························································································· 27

Enabling power supply management ······································································································· 27

Specifying the number of redundant power modules ··············································································· 27

Specifying the exception monitoring mode for power modules ································································ 28

Enabling power module sleeping ············································································································· 28

Powering on or off a card ························································································································· 29

Verifying power supply ····························································································································· 29

Monitoring fans················································································································································· 29

Displaying fan information ························································································································ 29

Setting the port status detection timer ············································································································· 30

Verifying and diagnosing transceiver modules ································································································ 30

Verifying transceiver modules ·················································································································· 30

Diagnosing transceiver modules ·············································································································· 30

Specifying an ITU channel number for a transceiver module ·········································································· 31

Managing 400G transceiver modules ·············································································································· 32

Enabling a lane on a 400G transceiver module ······················································································· 32

Configuring the transmit power of an optical channel ·············································································· 32

Configuring the frequency of an optical channel ······················································································ 32

Setting the power mode for a 400G transceiver module ·········································································· 33

Configuring the pre-cursor, post-cursor, and amplitude for a 400G transceiver module ························· 33

Displaying 400G transceiver module information ····················································································· 34

Resetting 400G transceiver modules ······································································································· 34

Specifying a diagnostic selector for a transceiver module ······················································· 34

Enabling loopback testing on a transceiver module lane ················································································· 35

Enabling fault detection on transceiver host side ····························································································· 35

Enabling fault detection on transceiver media side ·························································································· 36

Specifying the signal mode and PRBS pattern for a transceiver module lane ················································· 36

Configuring transceiver monitoring ·················································································································· 37

Configuring transceiver performance sampling ······························································································· 37

Locating devices ·············································································································································· 38

About device locating ······························································································································· 38

Starting LED flashing ······························································································································· 38

Stopping LED flashing ······························································································································ 38

Configuring consistency error logging for software and hardware forwarding entries ····································· 38

Configuring parity error and ECC error logging for entries on forwarding chips ·············································· 39

Configuring uncorrectable parity error and ECC error logging for entries on forwarding chips ······················· 39

Set a handshake timeout time·························································································································· 40

Enabling or disabling SyncE frequency synchronization ················································································· 40

Displaying device hardware information ·········································································································· 41

Displaying device hardware electronic label information ················································································· 41

Displaying backplane electronic label information ··························································································· 41

Displaying device hardware alarm information ································································································ 41

Displaying information about active alarms······································································································ 41

Displaying information about historical alarms ································································································· 42

Monitoring and maintaining processes ························································· 43

About monitoring and maintaining processes ·································································································· 43

Process monitoring and maintenance tasks at a glance ·················································································· 43

Monitoring and maintaining user processes and kernel threads ······································································ 43

About monitoring and maintaining user processes and kernel threads ··················································· 43

Displaying memory usage of processes ·································································································· 44

Displaying CPU usage of processes ········································································································ 44

Monitoring process status ························································································································ 44

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Monitoring and maintaining user processes ···································································································· 44

About monitoring and maintaining user processes ·················································································· 44

Configuring core dump ····························································································································· 44

Locating user process memory usage exceptions ··················································································· 45

Displaying log information for user processes ························································································· 45

Displaying context information for process exceptions ············································································ 45

Clearing context information for process exceptions ··············································································· 46

Monitoring and maintaining kernel threads ······································································································ 46

About monitoring and maintaining kernel threads ···················································································· 46

Detecting kernel thread deadloops ·········································································································· 46

Detecting kernel thread starvation ··········································································································· 47

Displaying kernel thread exception information ······················································································· 48

Displaying kernel thread reboot information····························································································· 48

Clearing kernel thread exception information ··························································································· 48

Clearing kernel thread reboot information ································································································ 48

Configuring the information center ······························································· 49

About the information center ···························································································································· 49

Log types ·················································································································································· 49

Log levels ················································································································································· 49

Log destinations ······································································································································· 50

Default output rules for logs ····················································································································· 50

Default output rules for diagnostic logs ···································································································· 50

Default output rules for security logs ········································································································ 50

Default output rules for hidden logs ········································································································· 51

Default output rules for trace logs ············································································································ 51

Log formats and field descriptions ··········································································································· 51

Information center tasks at a glance ················································································································ 54

Managing standard system logs ·············································································································· 54

Managing hidden logs ······························································································································ 54

Managing security logs ···························································································································· 55

Managing diagnostic logs ························································································································· 55

Managing trace logs ································································································································· 55

Enabling the information center ······················································································································· 55

Configuring a log output profile ························································································································ 56

Outputting logs to various destinations ············································································································ 56

Displaying the log output filters ················································································································ 56

Outputting logs to the console·················································································································· 57

Outputting logs to the monitor terminal ···································································································· 57

Outputting logs to log hosts ······················································································································ 58

Outputting logs to the log buffer ··············································································································· 59

Saving logs to the log file ························································································································· 59

Setting the minimum storage period for logs ··································································································· 60

Enabling synchronous information output ········································································································ 61

Configuring log suppression····························································································································· 61

Enabling duplicate log suppression·········································································································· 61

Configuring log suppression for a module ································································································ 63

Disabling an interface from generating link up or link down logs ····························································· 64

Enabling SNMP notifications for system logs··································································································· 64

Configuring security logs ·································································································································· 65

Saving security logs to the security log file ······························································································ 65

Managing the security log file ··················································································································· 65

Displaying security log information··········································································································· 66

Configuring diagnostic logs ······························································································································ 66

Saving diagnostic logs to the diagnostic log file ······················································································· 66

Displaying diagnostic log file configuration ······························································································ 67

Setting the maximum size of the trace log file·································································································· 67

Displaying the information center configuration ······························································································· 67

Displaying and clearing log buffer information ································································································· 68

Displaying log file information ·························································································································· 68

Information center configuration examples ······································································································ 68

Example: Outputting logs to the console·································································································· 68

Example: Outputting logs to a UNIX log host ··························································································· 69

Example: Outputting logs to a Linux log host ··························································································· 70

Document conventions and icons ································································ 72

Conventions ····················································································································································· 72

Network topology icons ···································································································································· 73

Support and other resources ······································································· 74

Accessing Hewlett Packard Enterprise Support······························································································· 74

Accessing updates ··········································································································································· 74

Websites ·················································································································································· 75

Customer self repair ································································································································· 75

Remote support ········································································································································ 75

Documentation feedback ························································································································· 75

Index ············································································································ 77

Performing basic device management

Configuring the device name

About this task

A device name (also called hostname) identifies a device in a network and is used in CLI view

prompts. For example, if the device name is Sysname, the user view prompt is <Sysname>.

Procedure

1. Enter system view.

system-view

2. Configure the device name.

sysname sysname

By default, the device name is HPE.

Configuring the system time

About the system time

Correct system time is essential to network management and communication. Configure the system

time correctly before you run the device on the network.

The device can use the following methods to obtain the system time:

•

Uses the locally set system time, and then uses the clock signals generated by its built-in crystal

oscillator to maintain the system time.

•

Periodically obtains the UTC time from an NTP source, and uses the UTC time, time zone, and

daylight saving time to calculate the system time. For more information about NTP, see Network

Management and Monitoring Configuration Guide.

The system time calculated by using the UTC time from a time source is more precise.

Restrictions and guidelines for configuring the system time

The system time configured by using the clock datetime command takes effect immediately.

The time zone or daylight saving time, no matter whether configured or not, are not taken into

account.

If you configure or change the time zone or daylight saving time after the device obtains the system

time, the device recalculates the system time. To view the system time, use the display clock

command.

You can configure the device to use both methods to obtain the system time. For time consistency,

however, configure the device to use only one of the methods to obtain the system time. If you

configure the device to use both methods, the device uses the manually set system time or the

periodically obtained UTC time, whichever is obtained later.

System time configuration tasks at a glance

To configure the system time, perform the following tasks:

1. Configuring the system time

Choose one of the following tasks:

 Setting the system time at the CLI

 Obtaining the UTC time through a time protocol

2. (Optional.) Setting the time zone

Make sure each network device uses the time zone of the place where the device resides.

3. (Optional.) Setting the daylight saving time

Make sure each network device uses the daylight saving time parameters of the place where

the device resides.

4. (Optional.) Displaying system time information

Setting the system time at the CLI

1. Enter system view.

system-view

2. Configure the device to use the local system time.

clock protocol none

By default, the device uses the NTP time source.

If you execute this command multiple times, the most recent configuration takes effect.

3. Return to user view.

quit

4. Set the local system time.

clock datetime time date

By default, the system time is UTC time 00:00:00 01/01/2011.

CAUTION:

This command changes the system time, which affects execution of system time

-related

features (for example, scheduled tasks)

and collaborative operations of the device with other

devices (for example, log reporting and statistics collection).

Before executing this command,

make sure you fully understand its impact on your live network.

Obtaining the UTC time through a time protocol

1. Enter system view.

system-view

2. Specify the system time source.

clock protocol ntp | ptp

By default, the device uses the NTP time source.

If you execute this command multiple times, the most recent configuration takes effect.

3. Configure time protocol parameters.

For more information about NTP configuration, see Network Management and Monitoring

Configuration Guide.

Setting the time zone

1. Enter system view.

system-view

2. Set the time zone.

clock timezone zone-name { add | minus } zone-offset

By default, the system uses the UTC time zone.

Setting the daylight saving time

1. Enter system view.

system-view

2. Set the daylight saving time.

clock summer-time name start-time start-date end-time end-date

add-time

By default, the daylight saving time is not set.

Displaying system time information

To display system time information, execute the following command in any view:

display clock

This command displays the system time, date, time zone, and daylight saving time.

Displaying copyright information

Enabling copyright statement display

About this task

This feature enables the device to display the copyright statement in the following situations:

•

When a Telnet or SSH user logs in.

•

When a console, AUX, or modem dial-in user quits user view. This is because the device

automatically tries to restart the user session.

Figure 1 shows the copyright statement.

If you disable displaying the copyright statement, the device does not display the copyright statement

in any situations.

Figure 1 Copyright statement at the login page

Procedure

1. Enter system view.

system-view

2. Enable copyright statement display.

By default, copyright statement display is enabled.

Displaying detailed copyright information

To display detailed copyright information, execute the following command in any view:

display copyright

Configuring banners

About this task

Banners are messages that the system displays when a user logs in.

The system supports the following banners:

•

Legal banner—Appears after the copyright statement.

•

Message of the Day (MOTD) banner—Appears after the legal banner and before the login

banner.

•

Shell banner—Appears for a user when the user accesses user view.

The system displays the banners in the following order: legal banner, MOTD banner, login banner, or

shell banner.

Banner input methods

You can configure a banner by using one of the following methods:

•

Input the entire command line in a single line.

The banner cannot contain carriage returns. The entire command line, including the command

keywords, the banner, and the delimiters, can have a maximum of 511 characters. The

delimiters for the banner can be any printable character but must be the same. You cannot

press Enter before you input the end delimiter.

For example, you can configure the shell banner "Have a nice day." as follows:

<System> system-view

[System] header shell %Have a nice day.%

•

Input the command line in multiple lines.

The banner can contain carriage returns. A carriage return is counted as two characters.

To input a banner configuration command line in multiple lines, use one of the following

methods:

 Press Enter after the final command keyword, type the banner, and end the final line with

the delimiter character %. The banner plus the delimiter can have a maximum of 1999

characters.

For example, you can configure the banner "Have a nice day." as follows:

<System> system-view

[System] header shell

Please input banner content, and quit with the character '%'.

Have a nice day.%

 After you type the final command keyword, type any printable character as the start

delimiter for the banner and press Enter. Then, type the banner and end the final line with

the same delimiter. The banner plus the end delimiter can have a maximum of 1999

characters.

For example, you can configure the banner "Have a nice day." as follows:

<System> system-view

[System] header shell A

Please input banner content, and quit with the character 'A'.

Have a nice day.A

 After you type the final command keyword, type the start delimiter and part of the banner.

Make sure the final character of the final string is different from the start delimiter. Then,

press Enter, type the rest of the banner, and end the final line with the same delimiter. The

banner plus the start and end delimiters can have a maximum of 2002 characters.

For example, you can configure the banner "Have a nice day." as follows:

<System> system-view

[System] header shell AHave a nice day.

Please input banner content, and quit with the character 'A'.

Procedure

1. Enter system view.

system-view

2. Configure the legal banner.

header legal text

3. Configure the MOTD banner.

header motd text

4. Configure the login banner.

header login text

5. Configure the shell banner.

header shell text

Scheduling a task

About task scheduling

You can schedule the device to automatically execute a command or a set of commands without

administrative interference.

You can configure a periodic schedule or a non-periodic schedule. A non-periodic schedule is not

saved to the configuration file and is lost when the device reboots. A periodic schedule is saved to

the startup configuration file and is automatically executed periodically.

Restrictions and guidelines

•

The default system time is always restored at reboot. To make sure a task schedule can be

executed as expected, reconfigure the system time or configure NTP after you reboot the

device. For more information about NTP, see Network Management and Monitoring

Configuration Guide.

•

To assign a command (command A) to a job, you must first assign the job the command or

commands for entering the view of command A.

•

Make sure all commands in a schedule are compliant to the command syntax. The system does

not check the syntax when you assign a command to a job.

•

A schedule cannot contain any one of these commands: telnet, ftp, ssh2, and monitor

process.

•

A schedule does not support user interaction. If a command requires a yes or no answer, the

system always assumes that a Y or Yes is entered. If a command requires a character string

input, the system assumes that either the default character string (if any) or a null string is

entered.

•

A schedule is executed in the background, and no output (except for logs, traps, and debug

information) is displayed for the schedule.

Procedure

1. Enter system view.

system-view

2. Create a job.

scheduler job job-name

3. Assign a command to the job.

command id command

By default, no command is assigned to a job.

You can assign multiple commands to a job. A command with a smaller ID is executed first.

4. Exit to system view.

quit

5. Create a schedule.

scheduler schedule schedule-name

6. Assign a job to the schedule.

job job-name

By default, no job is assigned to a schedule.

You can assign multiple jobs to a schedule. The jobs will be executed concurrently.

7. Assign user roles to the schedule.

user-role role-name

By default, a schedule has the user role of the schedule creator.

You can assign a maximum of 64 user roles to a schedule. A command in a schedule can be

executed if it is permitted by one or more user roles of the schedule.

8. Specify the execution time for the schedule.

Choose one option as needed:

 Execute the schedule at specific points of time.

time at time date

time once at time [ month-date month-day | week-day week-day&<1-7> ]

 Execute the schedule after a period of time.

time once delay time

 Execute the schedule at the specified time on every specified day in a month or week.

time repeating at time [ month-date [ month-day | last ] | week-day

week-day&<1-7> ]

 Execute the schedule periodically from the specified time on.

time repeating [ at time [date ] ] interval interval

By default, no execution time is specified for a schedule.

The time commands overwrite each other. The most recently executed command takes effect.

9. (Optional.) Set the schedule log file size limit.

scheduler logfile size value

By default, the schedule log file size limit is 16 KB.

The schedule log file stores log messages for execution results of commands in jobs. After the

limit is reached, the system deletes the oldest log messages to store the new log messages. If

the remaining space of the log file is not enough for a single log message, the system truncates

the message and does not store the extra part.

Verifying and maintaining task scheduling

Displaying task scheduling and execution information

Perform display tasks in any view.

•

Display the automatic reboot schedule.

display scheduler reboot

•

Display schedule information.

display scheduler schedule [ schedule-name ]

•

Display schedule job configuration information.

display scheduler job [ job-name ]

•

Display schedule job execution log information.

display scheduler logfile

Clearing schedule job execution log information

To clear schedule job execution log information, execute the following command in user view:

reset scheduler logfile

Example: Scheduling a task

Network configuration

As shown in Figure 2, two interfaces of the device are connected to users.

To save energy, configure the device to perform the following operations:

•

Enable the interfaces at 8:00 a.m. every Monday through Friday.

•

Disable the interfaces at 18:00 every Monday through Friday.

Figure 2 Network diagram

Procedure

IMPORTANT:

Device

HGE1/0/1 HGE1/0/2

PC 1 PC 2

By default, interfaces on the device are in

ADM or Administratively Down state. To have an

interface operate, you must use the undo shutdown command to enable that interface.

# Enter system view.

<Sysname> system-view

# Configure a job for disabling interface HundredGigE 1/0/1.

[Sysname] scheduler job shutdown-HundredGigE1/0/1

[Sysname-job-shutdown-HundredGigE1/0/1] command 1 system-view

[Sysname-job-shutdown-HundredGigE1/0/1] command 2 interface hundredgige 1/0/1

[Sysname-job-shutdown-HundredGigE1/0/1] command 3 shutdown

[Sysname-job-shutdown-HundredGigE1/0/1] quit

# Configure a job for enabling interface HundredGigE 1/0/1.

[Sysname] scheduler job start-HundredGigE1/0/1

[Sysname-job-start-HundredGigE1/0/1] command 1 system-view

[Sysname-job-start-HundredGigE1/0/1] command 2 interface hundredgige 1/0/1

[Sysname-job-start-HundredGigE1/0/1] command 3 undo shutdown

[Sysname-job-start-HundredGigE1/0/1] quit

# Configure a job for disabling interface HundredGigE 1/0/2.

[Sysname] scheduler job shutdown-HundredGigE1/0/2

[Sysname-job-shutdown-HundredGigE1/0/2] command 1 system-view

[Sysname-job-shutdown-HundredGigE1/0/2] command 2 interface hundredgige 1/0/2

[Sysname-job-shutdown-HundredGigE1/0/2] command 3 shutdown

[Sysname-job-shutdown-HundredGigE1/0/2] quit

# Configure a job for enabling interface HundredGigE 1/0/2.

[Sysname] scheduler job start-HundredGigE1/0/2

[Sysname-job-start-HundredGigE1/0/2] command 1 system-view

[Sysname-job-start-HundredGigE1/0/2] command 2 interface hundredgige 1/0/2

[Sysname-job-start-HundredGigE1/0/2] command 3 undo shutdown

[Sysname-job-start-HundredGigE1/0/2] quit

# Configure a periodic schedule for enabling the interfaces at 8:00 a.m. every Monday through

Friday.

[Sysname] scheduler schedule START-pc1/pc2

[Sysname-schedule-START-pc1/pc2] job start-HundredGigE1/0/1

[Sysname-schedule-START-pc1/pc2] job start-HundredGigE1/0/2

[Sysname-schedule-START-pc1/pc2] time repeating at 8:00 week-day mon tue wed thu fri

[Sysname-schedule-START-pc1/pc2] quit

# Configure a periodic schedule for disabling the interfaces at 18:00 every Monday through Friday.

[Sysname] scheduler schedule STOP-pc1/pc2

[Sysname-schedule-STOP-pc1/pc2] job shutdown-HundredGigE1/0/1

[Sysname-schedule-STOP-pc1/pc2] job shutdown-HundredGigE1/0/2

[Sysname-schedule-STOP-pc1/pc2] time repeating at 18:00 week-day mon tue wed thu fri

[Sysname-schedule-STOP-pc1/pc2] quit

Verifying the configuration

# Display the configuration information of all jobs.

[Sysname] display scheduler job

Job name: shutdown-HundredGigE1/0/1

system-view

interface hundredgige 1/0/1

shutdown

Job name: shutdown-HundredGigE1/0/2

system-view

interface hundredgige 1/0/2

shutdown

Job name: start-HundredGigE1/0/1

system-view

interface hundredgige 1/0/1

undo shutdown

Job name: start-HundredGigE1/0/2

system-view

interface hundredgige 1/0/2

undo shutdown

# Display the schedule information.

[Sysname] display scheduler schedule

Schedule name : START-pc1/pc2

Schedule type : Run on every Mon Tue Wed Thu Fri at 08:00:00

Start time : Wed Sep 28 08:00:00 2019

Last execution time : Wed Sep 28 08:00:00 2019

Last completion time : Wed Sep 28 08:00:03 2019

Execution counts : 1

-----------------------------------------------------------------------

Job name Last execution status

start-HundredGigE1/0/1 Successful

start-HundredGigE1/0/2 Successful

Schedule name : STOP-pc1/pc2

Schedule type : Run on every Mon Tue Wed Thu Fri at 18:00:00

Start time : Wed Sep 28 18:00:00 2019

Last execution time : Wed Sep 28 18:00:00 2019

Last completion time : Wed Sep 28 18:00:01 2019

Execution counts : 1

-----------------------------------------------------------------------

Job name Last execution status

shutdown-HundredGigE1/0/1 Successful

shutdown-HundredGigE1/0/2 Successful

# Display schedule log information.

[Sysname] display scheduler logfile

Job name : start-HundredGigE1/0/1

Schedule name : START-pc1/pc2

Execution time : Wed Sep 28 08:00:00 2019

Completion time : Wed Sep 28 08:00:02 2019

--------------------------------- Job output -----------------------------------

<Sysname>system-view

System View: return to User View with Ctrl+Z.

[Sysname]interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1]undo shutdown

Job name : start-HundredGigE1/0/2

Schedule name : START-pc1/pc2

Execution time : Wed Sep 28 08:00:00 2019

Completion time : Wed Sep 28 08:00:02 2019

--------------------------------- Job output -----------------------------------

<Sysname>system-view

System View: return to User View with Ctrl+Z.

[Sysname]interface hundredgige 1/0/2

[Sysname-HundredGigE1/0/2]undo shutdown

Job name : shutdown-HundredGigE1/0/1

Schedule name : STOP-pc1/pc2

Execution time : Wed Sep 28 18:00:00 2019

Completion time : Wed Sep 28 18:00:01 2019

--------------------------------- Job output -----------------------------------

<Sysname>system-view

System View: return to User View with Ctrl+Z.

[Sysname]interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1]shutdown

Job name : shutdown-HundredGigE1/0/2

Schedule name : STOP-pc1/pc2

Execution time : Wed Sep 28 18:00:00 2019

Completion time : Wed Sep 28 18:00:01 2019

--------------------------------- Job output -----------------------------------

<Sysname>system-view

System View: return to User View with Ctrl+Z.

[Sysname]interface hundredgige 1/0/2

[Sysname-HundredGigE1/0/2]shutdown

Isolating switching fabric modules

About this task

Isolating a switching fabric module isolates the module from the data plane. An isolated switching

fabric module continues to communicate with the MPU, and can forward traffic immediately after the

isolation is canceled. The isolation does not affect protocol packet parsing and protocol calculation

on the control plane.

Restrictions and guidelines

CAUTION:

•

Do not isolate the only switching fabric module of the device.

• Do not reboot the device when a switching fabric module is isolated.

Isolate a switching fabric module only if required. If the device has multiple switching fabric modules,

isolating a switching fabric module or channel decreases the forwarding bandwidth and downgrades

the forwarding performance.

You can isolate switching fabric modules to identify whether switching fabric modules can forward

traffic correctly.

Before replacing a switching fabric module, you can isolate the module to prevent packet loss.

To use an isolated switching fabric module or channel, use the undo switch-fabric isolate

command to cancel the isolation.

As a best practice, isolate a switching fabric module before you remove or install it on an operating

device for service stability.

Procedure

1. Enter system view.

system-view

2. Isolate a switching fabric module or channel.

switch-fabric isolate slot slot-number [ channel channel-number ]

By default, a switching fabric module is not isolated and can forward traffic.

Isolating a service module

About service module isolation

When a service module fails, you can use this feature to isolate it to prevent it from affecting traffic

forwarding. An isolated service module does not receive traffic.

Restrictions and guidelines

A service module reboot cancels the isolation of the service module.

To display service module operating status, execute the display device command. An isolated

service module is in Offline state.

Procedure

1. Enter system view.

system-view

2. Isolate a service module.

switch-linecard isolate slot slot-number

Suppressing removal interrupt signals from

switching fabric modules

About this task

Typically, removing a switching fabric module triggers one removal interrupt signal. Upon receiving

the signal, the system switches traffic on the switching fabric module to other switching fabric

modules to ensure service continuity. Upon hardware failure or signal interference, however,

removal interrupt signals might be frequently triggered. To prevent the interrupt signals from affecting

system operation, use this feature to suppress the interrupt signals.

Restrictions and guidelines

Suppressing removal interrupt signals from switching fabric modules might result in packet loss and

service outage.

Procedure

1. Enter system view.

system-view

2. Suppress removal interrupt signals from switching fabric modules.

switch-fabric removal-signal-suppression

By default, removal interrupt signals from switching fabric modules are not suppressed.

Rebooting the device

About device reboot

The following device reboot methods are available:

•

Schedule a reboot at the CLI, so the device automatically reboots at the specified time or after

the specified period of time.

•

Immediately reboot the device at the CLI.

This method allows you to reboot the device remotely.

•

Power off and then power on the device. This method might cause data loss, and is the

least-preferred method.

Restrictions and guidelines for device reboot

A device reboot might result in a service outage.

For data security, the device does not reboot while it is performing file operations.

Rebooting the device immediately at the CLI

Prerequisites

Perform the following steps in any view:

1. Verify that the next-startup configuration file is correctly specified.

display startup

For more information about the display startup command, see Fundamentals Command

Reference.

2. Verify that the startup image files are correctly specified.

display boot-loader

If one main startup image file is damaged or does not exist, you must specify another main

startup image file before rebooting the device.

For more information about the display boot-loader command, see Fundamentals

Command Reference.

3. Save the running configuration to the next-startup configuration file.

save

To avoid configuration loss, save the running configuration before a reboot.

For more information about the save command, see Fundamentals Command Reference.

Procedure

To reboot the device immediately at the CLI, execute one of the following commands in user view:

reboot [ slot slot-number [ subslot subslot-number ] ] [ force ]

CAUTION:

•

A device reboot might result in service interruption. Before using this command, make sure

you

fully understand its impact on your live network.

•

Use the force keyword to reboot the device only when the system is faulty or fails to start up

normally. A forced device reboots might cause file system damage. Before using the force

keyword to reboot the device, make sure you understand its impact.

Scheduling a device reboot

Restrictions and guidelines

The automatic reboot configuration is canceled if an active/standby switchover occurs.

The device supports only one device reboot schedule. If you execute the scheduler reboot

command multiple times, the most recent configuration takes effect.

Procedure

To schedule a reboot, execute one of the following commands in user view:

•

scheduler reboot at time [ date ]

•

scheduler reboot delay time

By default, no device reboot time is specified.

CAUTION:

This task enables the device to reboot at a scheduled time, which causes service interruption

Before configuring this task, make sure you fully understand its impact on your live network.

Restoring the factory-default configuration

About this task

If you want to use the device in a different scenario or you cannot troubleshoot the device by using

other methods, use this task to restore the factory-default configuration.

This task does not delete .bin files.

Restrictions and guidelines

CAUTION:

This feature will restore the factory defaults for the device. Before using this command, make sure

you fully understand its impact on your live network.

Procedure

Execute the following command in user view to restore the factory-default configuration for the

device:

restore factory-default

Collecting operating statistics for diagnostics and

troubleshooting

About this task

You can use one of the following methods to collect operating statistics for diagnostics and

troubleshooting:

•

Use separate display commands to collect operating information feature by feature or

module by module.

•

Use the display diagnostic-information command to collect operating information

for multiple or all features and hardware modules.

Restrictions and guidelines

To save storage space, this feature automatically compresses the information before saving the

information to a file. To view the file content:

1. Use the tar extract command to extract the file.

2. Use the gunzip command to decompress the extracted file.

3. Use the more command to view the content of the decompressed file.

While the device is executing this command, do not execute any other commands. Executing other

commands might affect the collected operating information.

Procedure

Execute the following command in any view:

display diagnostic-information [ hardware | infrastructure | l2 | l3 |

service ] [ key-info ] [ filename ]

Verifying device stability

About this task

The device/card startup process takes some time. If the values of the status fields do not change to

Stable, use this feature to identify the devices/cards that are not in Stable state.

Restrictions and guidelines

Procedure

To display system stability and status information, execute the following command in any view:

display system stable state

Troubleshooting

If the system is not in stable state, you can use other commands to identify the faulty components.

For example:

•

Use the display device command to identify the device operating status.

•

Use the display ha service-group command to display the status of HA service groups

and identify the groups in batch backup state.

•

Use the display system internal process state command in probe view to display

service operating status.

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Aruba JH255A Configuration Guide

Aruba JH255A Configuration Guide

Aruba JH255A Configuration Guide

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