# LLDP Automatic Settings

### 1. Function Overview

The LLDP automatic setting specifies sending/receiving proprietary LLDP frames to automatically perform specific processes, such as specifying settings based on information in LLDP notifications or saving log data.

The following are automatically specified or executed by using the LLDP automatic setting.

- Dante Optimization Settings

  - When the components of the Yamaha ADECIA teleconferencing system are connected, the optimal settings for using Dante are automatically reflected.

- Power shutoff advance notification by the schedule function

  - When the PoE power shutoff is scheduled for the port to which the Yamaha wireless access point is connected, you will be notified of the power shutoff timing in advance, and the Yamaha wireless access point will save a log just before the power shutoff.

To determine Yamaha network switch and wireless access point models that support LLDP automatic setting function, refer to LLDP automatic setting examples.

To determine ADECIA components, refer to ADECIA product information.

### 2. Definition of Terms Used

LLDP

Link Layer Discovery Protocol.
This is defined in IEEE 802.1AB.

ADECIA

ADECIA is Yamaha’s teleconferencing system. It connects processors, microphones, and speakers used for teleconferencing via a LAN (Dante).

ADECIA Component

Devices (teleconferencing processors, microphones, and speakers) included in ADECIA systems.

### 3. Function Details

#### 3.1. Basic specifications

If the LLDP automatic setting function is enabled, proprietary LLDP frames will be sent and received.

The LLDP automatic setting as a whole can be enabled and disabled using the lldp auto-setting command.
The default setting for this product is enabled.

Functions enabled with the LLDP automatic setting can be selected using the lldp auto-setting function command.
The default setting for this product is to use all functions.

In order to use this function, reception of LLDP frames must be enabled.
For this reason, check in advance that the following settings have been made.

- Enable LLDP functionality for the overall system using the lldp run command.

- Create LLDP agents at applicable interfaces using the lldp-agent command.

- Specify the LLDP frame transmit/receive mode using the set lldp command.

LLDP frame transmission and reception are enabled in product default settings.

#### 3.2. Dante Optimization Settings

This function automatically applies settings optimized for Dante by receiving LLDP frames created independently by ADECIA components.
For more information, refer to Dante Optimization Settings.

#### 3.3. Power shutoff advance notification by the schedule function

When a PoE power shutoff is scheduled for a specific port on a Yamaha network switch, this function periodically notifies of the remaining time from 10 minutes before the power shutoff until the schedule execution via LLDP.
When a wireless access point is notified of the remaining time until the power shutoff via LLDP, it can prevent the log from being lost due to the power shutoff by saving the log just before the power supply is shut off.

If the following criteria are satisfied at a specific port whose LLDP transmission interval is set to a value greater than 30 seconds, the LLDP transmission interval will be overridden and changed to 30 seconds.

- LLDP is used and the LLDP automatic setting function is enabled.

- The PoE power shutoff is scheduled for a specific port.

- Less than 10 minutes remain until the schedule execution.

If the schedule is executed, the schedule setting is deleted, or the setting is changed to a time more than 10 minutes later, the LLDP transmission interval will return to the original setting value.
If the LLDP transmission interval is overridden and changed to 30 seconds by this function, then an asterisk is appended to the LLDP transmission interval value shown by the show lldp interface command.

- Example of LLDP transmission interval shown by the show lldp interface command

      SWX#show lldp interface port1.2
      Agent Mode                    : Nearest bridge
      Enable (tx/rx)                : Y/Y
      Message fast transmit time    : 1
      Message transmission interval : 30*
      Reinitialization delay        : 2
      MED Enabled                   : Y
      Device Type                   : NETWORK_CONNECTIVITY
      LLDP Agent traffic statistics
        Total frames transmitted       : 0
        Total entries aged             : 0
        Total frames received          : 0
        Total frames received in error : 0
        Total frames discarded         : 0
        Total discarded TLVs           : 0
        Total unrecognised TLVs        : 0

      * - Assigned by LLDP.

If the above functionality is used, note the following precautions.

- Precautions

  - Advance notification of a power shutoff is provided only if the power shutoff is scheduled for a specific port. Note that the notification will not be provided if the power shutoff is scheduled for the entire system.

### 4. Related Commands

Related commands are indicated below.
For details, refer to the Command Reference.

Operations | Operating commands
--- | ---
Enable LLDP automatic settings | lldp auto-setting
Set functions to be enabled with the LLDP automatic setting | lldp auto-setting function
Enable LLDP function | lldp run
Create LLDP agent | lldp-agent
Set LLDP transmission/reception mode | set lldp
Show interface status | show lldp interface

### 5. Setting Examples

For instructions on how to configure respective Yamaha network switch and wireless access point settings, refer to the following.

- Technical reference: LLDP automatic setting examples

### 6. Points of Caution

None.

### 7. Related Documentation

- LLDP

- Dante Optimization Settings

- Schedule Function

- Technical reference: LLDP automatic setting examples

- ADECIA product information

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