# About the gadgets

## 1. Interface information

Displays the link status of the ports and the PoE power supply status.

- The "Port" icon display lets you check the link status of the ports, the PoE power supply status, and the bandwidth usage rate.

- When you move the mouse cursor over the "Port" icon, detailed port information is shown.

- Press the "LINK/ACT" button to display the link status. Press the "Power supply status" button to display the PoE power supply status. Press the "Bandwidth usage" button to display the bandwidth usage rate.

- The "Port" icon will display as follows, according to the link status, the PoE power supply status, and the bandwidth usage rate.

  Link status:For a LAN port

  Icon | Description
  | Link up (port speed 10GBASE-T)
  | Link up (port speed 5GBASE-T)
  | Link up (port speed 2.5GBASE-T)
  | Link up (port speed 1000BASE-T)
  | Link up (port speed 100BASE-TX)
  | Link down
  | Error occurrence( Loop detection, Shutdown by BPDU guard, Shutdown by port-security )
  | The STP state of the port is discarding. (CIST only) It means that the STP is blocking frames even though the link is up. *This icon is overlaid on the link-up icon.

  Link status:For an SFP port

  Icon | Description
  | Link up (port speed 25GbE)
  | Link up (port speed 1GbE)
  | Link down
  | Error occurrence( Loop detection, Shutdown by BPDU guard, Shutdown by port-security, Optical RX power error )
  | The STP state of the port is discarding. (CIST only) It means that the STP is blocking frames even though the link is up. *This icon is overlaid on the link-up icon.

  Link status:For a QSFP28 port

  Icon | Description
  | Link up (port speed 100GbE)
  | Link down
  | Error occurrence( Loop detection, Shutdown by BPDU guard, Shutdown by port-security, Optical RX power error )
  | The STP state of the port is discarding. (CIST only) It means that the STP is blocking frames even though the link is up. *This icon is overlaid on the link-up icon.

  Link status:For a Stack port

  Icon | Description
  | Link up
  | Link down

  PoE supply:For a LAN port

  Icon | Description
  | Does not support power supply
  | PoE is being supplied (supply Class0--3)
  | PoE is being supplied (supply Class4--8)
  | Power supply stopped
  | Error occurrence( Power delivery capacity exceeded, Error on the Powered Device, Power supply abnormality )

  PoE supply:For an SFP port

  Icon | Description
  | Does not support power supply

  PoE supply:For a QSFP28 port

  Icon | Description
  | Does not support power supply

  Bandwidth usage:For a LAN port

  Icon | Description
  | Link Up (Bandwidth Utilization x: 95% ≤ x ≤ 100%)
  | Link Up (Bandwidth Utilization x: 85% ≤ x < 95%)
  | Link Up (Bandwidth Utilization x: 75% ≤ x < 85%)
  | Link Up (Bandwidth Utilization x: 65% ≤ x < 75%)
  | Link Up (Bandwidth Utilization x: 55% ≤ x < 65%)
  | Link Up (Bandwidth Utilization x: 45% ≤ x < 55%)
  | Link Up (Bandwidth Utilization x: 35% ≤ x < 45%)
  | Link Up (Bandwidth Utilization x: 25% ≤ x < 35%)
  | Link Up (Bandwidth Utilization x: 15% ≤ x < 25%)
  | Link Up (Bandwidth Utilization x: 7.5% ≤ x < 15%)
  | Link Up (Bandwidth Utilization x: 0% ≤ x < 7.5%)
  | Link down

  Bandwidth usage:For an SFP port

  Icon | Description
  | Link Up (Bandwidth Utilization x: 95% ≤ x ≤ 100%)
  | Link Up (Bandwidth Utilization x: 85% ≤ x < 95%)
  | Link Up (Bandwidth Utilization x: 75% ≤ x < 85%)
  | Link Up (Bandwidth Utilization x: 65% ≤ x < 75%)
  | Link Up (Bandwidth Utilization x: 55% ≤ x < 65%)
  | Link Up (Bandwidth Utilization x: 45% ≤ x < 55%)
  | Link Up (Bandwidth Utilization x: 35% ≤ x < 45%)
  | Link Up (Bandwidth Utilization x: 25% ≤ x < 35%)
  | Link Up (Bandwidth Utilization x: 15% ≤ x < 25%)
  | Link Up (Bandwidth Utilization x: 7.5% ≤ x < 15%)
  | Link Up (Bandwidth Utilization x: 0% ≤ x < 7.5%)
  | Link down

  Bandwidth usage:For a QSFP28 port

  Icon | Description
  | Link Up (Bandwidth Utilization x: 95% ≤ x ≤ 100%)
  | Link Up (Bandwidth Utilization x: 85% ≤ x < 95%)
  | Link Up (Bandwidth Utilization x: 75% ≤ x < 85%)
  | Link Up (Bandwidth Utilization x: 65% ≤ x < 75%)
  | Link Up (Bandwidth Utilization x: 55% ≤ x < 65%)
  | Link Up (Bandwidth Utilization x: 45% ≤ x < 55%)
  | Link Up (Bandwidth Utilization x: 35% ≤ x < 45%)
  | Link Up (Bandwidth Utilization x: 25% ≤ x < 35%)
  | Link Up (Bandwidth Utilization x: 15% ≤ x < 25%)
  | Link Up (Bandwidth Utilization x: 7.5% ≤ x < 15%)
  | Link Up (Bandwidth Utilization x: 0% ≤ x < 7.5%)
  | Link down

## 2. System information

The following information is displayed.

- Device name:

  - Display the device name of the switch.

- Firmware revision:

  - Firmware revision

- Serial number:

  - Serial number of device

  - This is also shown by a label on the rear of the chassis.

- Device ID:

  - Device ID of the device.

- MAC address:

  - MAC address of the device

  - This is also shown by a label on the rear of the chassis.

- Currently-running firmware:

  - The currently started firmware is shown..

  - When it starts from firmware stored in an external memory, shown like "exec(SD)".

- Currently-running settings file:

  - The currently used CONFIG file is shown.

  - Select config0 - config4 using the startup-config select command. If you are booting from a CONFIG file stored in external memory, "config(SD)" will be displayed.

- DIPSW (startup):

  - Displays the state of DIP switch at startup.

- Serial baud rate

  - Displays the baud rate of the console port.

- System time:

  - Current device date and time

  - If the date and time are incorrect, set the date and time either in the Web GUI’s "Management" → "Device settings" page, or by using the clock set command or the ntpdate command.

- Startup time:

  - System startup date and time

- Startup reason:

  - Reason for startup

  - Start from power-off state, reload command, revision up, etc.

  - If reboot is detected as the startup reason, the background turns red, and a warning indication () occurs.

    - Check with the network administrator.

    - In the warning list, press the "Clear" button () to clear the warning indication.

- Fan speed :

  - Displays the speed of each fan.

- Internal chassis temperature :

  - Displays the temperature inside the chassis.

- SFP optical RX level :

  - Displays the SFP optical Rx level state and the connection module.

- PoE supply :

  - The display will show whether the PoE power supply is enabled.

- PoE supply power :

  - The current supply voltage and the maximum supplied voltage will be displayed.

## 3. Resource information

This page shows the CPU usage and memory usage.

- The current values and peak values of CPU usage and memory usage are shown.

- The number at the right of the meter is the current usage, and the number at the left is the peak value.

- You can clear the previous peak value from "Clear peak values,".

  - Peak values are also cleared when you restart the device.

- When you move the mouse cursor to each meter, the peak value and the date and time at which the peak value was recorded are shown.

- If the CPU usage exceeds 80%, a warning display () is shown.

  - Note the date and time at which the peak value was recorded, and from other gadgets, note the traffic and the log that were occurring during that time.

- If the memory usage exceeds 80%, a warning display () is shown.

  - Note the date and time at which the peak value was recorded, and from other gadgets, note the traffic and the log that were occurring during that time.

## 4. SYSLOG

This shows the most recent SYSLOG.

- The most recent log is at the top.

- In the select menu you can change the number of lines that are displayed (default: 10 lines).

## 5. Terminal Monitoring

Displays a list of monitored devices and their status.

- Devices that are determined to be up, down, not started yet ("Idle") and all monitored devices ("All") are counted respectively.

- Displays the monitored target, device name, monitoring type and status for each monitored device.

- Point the mouse cursor above a status column to show the status for that monitored device.

- Press the "Up", "Down", "Idle" and "All" buttons to show only the monitored devices for those statuses.

- When not even one monitored device is registered, "The monitoring devices have not been registered" will be displayed.

## 6. Traffic information

The physical interface traffic is displayed on a graph.
There are different gadgets for the transmission traffic and for the reception traffic.

- Use the "Live", "Day", "Month" and "Year" buttons to change the graph rendered.

  - Live

    - Traffic can be viewed for the previous two minutes.

    - The graph will be automatically refreshed each second.

  - Day

    - Displays traffic per hour for the specified date.

    - The day can be set using the day specification box at the top right of the gadget.

    - Press the date specification box to display the calendar, and select the day to show the graph for the day specified.

    - A date within one year to the past can be set using the calendar.

  - Month

    - Displays traffic per day for the specified month.

    - The month can be set using the month specification box at the top right of the gadget.

    - Press the month specification box to display the calendar, and select the month to show the graph for the day specified.

    - A past month within one year can be set using the calendar.

  - Year

    - Displays traffic per month for the specified year.

    - The year can be set using the year specification box at the top right of the gadget.

    - Press the year specification box to display the calendar, and select the year to show the graph for the year specified.

    - The year specification box can be used to specify either the current year or the previous year.

- Press the "Interface selection" button () to display the "Interface selection" dialog box.

- Select the interface to display on the graph, from the "Interface selection" dialog box.

- The average traffic per hour for the interface is rendered on the graph.

- Press the "Export as a CSV file" button () to display the "Traffic information Export summary data" dialog.

- You can export the specified period’s traffic summary data as a CSV file in the "Traffic information Export summary data" dialog.

- Press the "Clear summary data" button () to display the "Traffic information Clear summary data" dialog.

- You can delete all the traffic summary data in the "Traffic information Clear summary data" dialog.

- Up to 8 lines can be displayed on the graph using the colors blue, salmon pink, yellow, green, gray, sky blue, pink and purple for a total of 8 colors.

  - These colors are allocated in the order that they are rendered on the graph, from the newest interface numbers onwards.

- The Y-axis upper limit grows with the traffic, from a minimum of 10 [kbps] to a maximum of 100 [Gbps].

- The information shown below is shown on the graph for the specified period that is rendered.

  - Live: Current time - time 120 sec. ago (hh:mm:ss format)

  - Day: Midnight - 11pm

  - Month: 1st - 28th, 29th, 30th, 31st

  - Year: January - December

- Point the mouse cursor above a line on the graph to show the interface information, date and traffic amount.

- A legend for the currently displayed graph is shown at the lowermost part of the gadget.

- Using the legend

  - Only the lines on the graph that are enabled using the check boxes in the legend will be displayed.

  - Deselecting the check boxes will hide the corresponding lines from the graph.

  - This is useful when multiple lines are overlapping or when you wish to temporarily monitor a specific interface only.

  - If the interface you are currently monitoring does not exist, the message "The currently monitored interface is not selected" will display.

- Refresh the screen to restore the rendered time period and the selections on the legend to their defaults, as shown below.

  - Rendering period: Live

  - Legend checkbox: Apply all

- If the traffic exceeds 60%, a warning () will be displayed.

- If the traffic falls below 50%, the warning will be cancelled.

- When displaying a gadget in a separate window using the "Separate" button ()

  - The settings prior to being separated will be reflected in the settings for the interface currently being monitored.

  - The rendered time period and the selections on the legend return to their defaults.

  - The settings for the interface selected in a separated window will be reflected in the dashboard gadget when the separated screen is closed.

- When directly inputting the URL for a separated window and displaying a gadget

  - The rendered time period and the selections on the legend return to their defaults.

## 7. Resource information (Graph)

This shows the CPU usage and memory usage in graph format.

- Use the "Live", "Day", "Month" and "Year" buttons to change the graph rendered.

  - Live

    - Usage ratio can be viewed for the previous two minutes.

    - The graph will be automatically refreshed each second.

  - Day

    - The average usage ratio is rendered per hour for the monitored period.

    - The day can be set using the day specification box at the top right of the gadget.

    - Press the date specification box to display the calendar, and select the day to show the graph for the day specified.

    - A date within one year to the past can be set using the calendar.

  - Month

    - Displays usage ratio per day for the specified month.

    - The month can be set using the month specification box at the top right of the gadget.

    - Press the month specification box to display the calendar, and select the month to show the graph for the day specified.

    - A past month within one year can be set using the calendar.

  - Year

    - Displays usage ratio per month for the specified year.

    - The year can be set using the year specification box at the top right of the gadget.

    - Press the year specification box to display the calendar, and select the year to show the graph for the year specified.

    - The year specification box can be used to specify either the current year or the previous year.

- Press the "Export as a CSV file" button () to display the "Resource information Export summary data" dialog.

- You can export the specified period’s resource summary data as a CSV file in the "Resource information Export summary data" dialog.

- Press the "Clear summary data" button () to display the "Resource information Clear summary data" dialog.

- You can delete all the resource summary data in the "Resource information Clear summary data" dialog.

- Displays usage ratio per hour for the specified date.

- The CPU usage is shown on the graph using blue lines, and the memory usage is shown using salmon pink lines.

- The upper limit for the graph’s Y axis is 100 [%].

- The information shown below is shown on the graph for the specified period that is rendered.

  - Live: Current time - time 120 sec. ago (hh:mm:ss format)

  - Day: Midnight - 11pm

  - Month: 1st - 28th, 29th, 30th, 31st

  - Year: January - December

- Point the mouse cursor above a line on the graph to show the monitored period, date and time and usage ratio.

- A legend for the currently displayed graph is shown at the lowermost part of the gadget.

- Using the legend

  - Only the lines on the graph that are enabled using the check boxes in the legend will be displayed.

  - Deselecting the check boxes will hide the corresponding lines from the graph.

- Refresh the screen to restore the rendered time period and the selections on the legend to their defaults, as shown below.

  - Rendering period: Live

  - Legend checkbox: Apply all

- If the CPU usage exceeds 80%, a warning () will be displayed.

- If the CPU usage falls below 80%, the warning will be cancelled.

- If the memory usage exceeds 80%, a warning () will be displayed.

- If the memory usage falls below 80%, the warning will be cancelled.

- When displaying a gadget in a separate window using the "Separate" button ()

  - The rendered time period and the selections on the legend return to their defaults.

- When directly inputting the URL for a separated window and displaying a gadget

  - The rendered time period and the selections on the legend return to their defaults.

## 8. Stack information

The following information is displayed.

- Stack Function

  - Displays whether the stack function is enabled.

- Members

  - Displays the member switch types and roles.

- Status

  - Displays the member switch status.

  - Only displayed when the stack function is enabled.

- Subnet on stack port

  - Displays a range of IP addresses to use for stacked ports.

- Virtual MAC-Address

  - Displays the MAC address used in the stack configuration.

## 9. Power consumption information

Displays the power consumption of the device on a graph.

- Use the "Live", "Day", "Month" and "Year" buttons to change the graph rendered.

  - Live

    - Displays the power consumption [W] per second for the last 2 minutes.

    - The graph will be automatically refreshed each second.

  - Day

    - Displays the total hourly power consumption [Wh] for the specified day.

    - The day can be set using the day specification box at the top right of the gadget.

    - Press the date specification box to display the calendar, and select the day to show the graph for the day specified.

    - A date within one year to the past can be set using the calendar.

  - Month

    - Displays the total daily power consumption [Wh] for the specified month.

    - The month can be set using the month specification box at the top right of the gadget.

    - Press the month specification box to display the calendar, and select the month to show the graph for the day specified.

    - A past month within one year can be set using the calendar.

  - Year

    - Displays the total monthly power consumption [Wh] for the specified year.

    - The year can be set using the year specification box at the top right of the gadget.

    - Press the year specification box to display the calendar, and select the year to show the graph for the year specified.

    - The year specification box can be used to specify either the current year or the previous year.

- Press the "Export as a CSV file" button () to display the "Power consumption information Export summary data" dialog.

- You can export the specified period’s power consumption summary data as a CSV file in the "Power consumption information Export summary data" dialog.

- Press the "Clear summary data" button () to display the "Power consumption information Clear summary data" dialog.

- You can delete all the power consumption summary data in the "Power consumption information Clear summary data" dialog.

- The information shown below is shown on the graph for the specified period that is rendered.

  - Live: Current time - time 120 sec. ago (hh:mm:ss format)

  - Day: Midnight - 11pm

  - Month: 1st - 28th, 29th, 30th, 31st

  - Year: January - December

- Point the mouse cursor above a line on the graph to show the date and power consumption.

- Refresh the screen to restore the rendered time period to its default state Live.

- The rendered time period returns to its default in the following cases.

  - When displaying a gadget in a separate window using the "Separate" button ()

  - When directly inputting the URL for a separated window and displaying a gadget

- The following recommended methods reduce power consumption.

  - Decrease the link speed of ports with low bandwidth usage.

  - Use the Schedule execution function to shut down unused ports and PoE power supply at midnight and on holidays.

## 10. PoE power supply

Display the PoE power supply.

- The current/maximum power supply, the remaining available power supply, and the guard band setting values are displayed at the top of the meter.

- The current utilization rate is shown on the right side of the meter, with peak utilization at the top.

- The arrow at the bottom of the meter indicates the guard band threshold value. If the current power supply exceeds the guard band threshold value, no additional power can be supplied.

- When you move the mouse cursor to the meter, the peak value and the date and time at which the peak value was recorded are shown.

- You can clear the previous peak value from "Clear peak values".

  - Peak values are also cleared when you restart the device.

## 11. Operating status of YNO agent

Displays the operating status of YNO agent.

- YNO agent function

  - Displays whether the YNO agent function is enabled.

- Connection status

  - Displays connection status with the YNO server.

  - If the connection status is offline, an error reason will be displayed as well.

- Connected date

  - Displays the date and time that the connection was established with the YNO server.

- Operator ID

  - Displays the operator ID of the YNO manager that manages this unit.

- Connection status with servers

  - Displays connection status with the YNO servers (ACS, XMPP, GFW).

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