devlink-dpipe - Linux

Overview

devlink-dpipe is a command-line utility used to control Data Pipes in Link Layer Discovery Protocol (LLDP) for a given device or a set of devices. Data Pipes provide a mechanism to exchange additional information beyond the standard LLDP frame.

Syntax

devlink-dpipe [OPTIONS] COMMAND

Options/Flags

  • -d, --dev: Specify the network device to work on.
  • -D, --device-name: Filter devices by name.
  • -h, --help: Display help and exit.
  • -j, --json: Output in JSON format.
  • -V, --version: Display version and exit.
  • -v, --verbosity: Set the verbosity level (0-9).

Examples

Get the list of Data Pipes on a device:

devlink-dpipe --dev eth0 list

Disable a specific Data Pipe by its index:

devlink-dpipe --dev eth0 set disable 3

Add a new Data Pipe:

devlink-dpipe --dev eth0 add dpipe 0 rx active

Common Issues

Error: ENOENT

  • Occurs when the specified device does not exist. Ensure that the provided device name is correct and the device is present.

Error: EPERM

  • Occurs when the user does not have sufficient privileges. Use sudo to elevate privileges.

Integration

devlink-dpipe can be used with other devlink commands to manage LLDP configurations. For example:

Get port information and Data Pipe configuration:

devlink port show --dev eth0 | grep dpipe

Related Commands

  • devlink
  • ethtool
  • LLDP documentation: https://www.ieee802.org/1/pages/802.1ab-resources.html