# LLDP

### 1. Summary

#### 1.1. This page is for changing LLDP settings and viewing neighbor information obtained by LLDP.

* LLDP (Link Layer Discovery Protocol) is a protocol to collect neighbor information. In this unit, following operations are supported.

- Unit information is periodically transmitted to neighboring devices.

- Reception of information from neighboring devices.

- Display of received neighbor information

### 2. Top page

This is the top page for the LLDP.

#### 2.1. Neighbor information list

- Pressing the "Next " button displays a page where acquired neighbor information can be viewed.

- The "Next" button is disabled if the LLDP function is disabled.

#### 2.2. System settings

- Displays the LLDP settings for the system.

- The table items are explained below.

  - LLDP

    - Displays whether LLDP is enabled or disabled for the entire system.

  - Auto-configure via LLDP function

    - The current settings for the auto-configure via LLDP function are displayed.

- Press the "Setting" button to display the page for configuring the system.

#### 2.3. Interface settings

- Displays the LLDP settings for the interface.

- The table items are explained below.

  - Port

    - Displays the interface name.

  - LLDP frame transmission and reception

    - Displays the LLDP frame transmission and reception mode for the target interface.

- Press the "Setting" button to display the page for configuring the selected interface.

- Press the "Specify all" button to configure the settings for all interfaces with the check box selected.

- Press the "Return to defaults" button to initialize the settings for all interfaces with the check box selected.

### 3. Neighbor information list page

This page displays a summary of neighbor information obtained by LLDP.
Displays ports where neighbor information was received and part of that information.

#### 3.1. Neighbor information list

- Displays a list of neighbor information obtained by LLDP.

- Pressing the “Detail” button displays a page for viewing details about the selected neighbor information.

- You can search neighbor information from the “Search” box.

  - Press to execute the search.

  - Press to clear the search.

  - You can use regular expressions shown below in search keywords.

    Syntax | Explanation
    --- | ---
    A | The character “A”
    ABC | The characters “ABC”
    [ABC] | One character, either “A”, “B” or “C”
    [A-C] | One character between “A” and “C”
    [^ABC] | An arbitrary character that is neither “A”, “B” or “C”
    . | An arbitrary character
    A+ | At least one “A” character
    A* | At least zero “A” characters
    A? | Zero or one “A” character
    ^A | A string that begins with “A”
    A$ | A string that ends with “A”
    ABC|DEF|GHI | “ABC”, “DEF” or “GHI”
    A{2} | Two “A” characters (AA)
    A\{2,} | Two or more “A” characters (AA, AAA, AAAA…​)
    A\{2,3} | Two to three “A” characters (AA, AAA)
    ¥b | Word breaks, such as spaces
    ¥B | Any character besides ¥b
    ¥d | An arbitrary number (same as [0-9])
    ¥D | Any character besides numbers (same as [^0-9])
    ¥s | Single breaking character
    ¥S | Any single character besides ¥s
    ¥w | Alphanumeric characters including underlines (same as [A-Za-z0-9_])
    ¥W | Any character besides ¥w

  - Press to update information to the latest information.

  - The number of search results to display at one time can be selected by pressing "Display number" on the "Select" menu.

  - If the number of neighbor information results exceeds the "display number" setting, the range of neighbor information results can be changed by pressing .

  - Press the corresponding button to sort the list.

    - With default settings, results are sorted in ascending order of the receiving port.

    - Pressing again switches between ascending and descending order.

    - “Receiving ports” are sorted in order of port number.

    - Other items are sorted alphabetically based on the character string.

### 4. Neighbor information detail page

This page displays details for neighbor information selected on the neighbor information page.

#### 4.1. Details of neighbor information

- Each information item in the obtained neighbor information is displayed.

- If obtained neighbor information contains no information for an item, “-” is displayed.

- For details on the information displayed, refer to Network device technical information page.

### 5. System settings page

This page is for configuring the LLDP settings for the system.
Enter the settings, and then press the "Confirm" button.
If there are no mistakes in the input content of the confirmation screen, press the "OK" button.

#### 5.1. System settings

- LLDP

  - Specify whether to enable or disable LLDP for the entire system.

- Auto-configure via LLDP function

  - Specify whether to enable or disable LLDP auto-configuration function.

  - To use LLDP auto-configuration, the connected device must support LLDP auto configuration. To confirm supported models, check the "LLDP Auto-Configuration" page in the unit’s technical documentation.

  - The LLDP auto-configuration function includes the following features.

    - Dante optimization setting

      - When certain Dante-enabled Yamaha device is connected to the unit, optimal settings for using Dante is automatically applied.

    - Notification before power is shut off

      - If the PoE power supply is scheduled to be shut off at a port connected to a Yamaha wireless AP device, notification of the shut-off timing is sent in advance and the Yamaha wireless AP device is prepared to have the power shut off.

### 6. Interface settings page

In this page you can make settings for the LLDP.
Enter the settings, and then press the "Confirm" button.
If there are no mistakes in the setting confirmation screen, press the "OK" button.

#### 6.1. Interface settings

- Port

  - Displays the name of the interface for which settings will be made.

- LLDP frame transmission and reception

  - Select the operation for LLDP frame transmission and reception from the following options.

    - Enabled

      - Enables LLDP frame transmission and reception

      - Select direction to enable from the following items.

        - Transmit & Receive

        - Transmit

        - Receive

    - Disabled

      - Disables LLDP frame transmission and reception

- LLDP frame transmission interval

  - Specifies the transmission interval of LLDP frames in terms of seconds.

  - Input a transmission interval of LLDP frames from 5 to 3600.

- Hold time (TTL) of device information sent by LLDP

  - Specify a hold multiplier to decide a hold time ( TTL ).

  - Input a hold multiplier from 1 to 100.

- Type of Management address sent by LLDP

  - Select management address type from the following items.

    - IP address

    - MAC address

- Maximum number of managed devices

  - Specifies the maximum number of managed devices.

  - Input a maximum number of managed devices from 1 to 100.

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