configure lldp ports vendor-specific med capabilities

configure lldp ports [all | port_list] [advertise | no-advertise] vendor-specific med capabilities

Description

Configures the Link Layer Discovery Protocol port to advertise or not advertise MED capabilities. This TLV must be enabled before any of the other MED TLVs can be enabled. Also, this TLV must be set to no-advertise after all other MED TLVs are set to no-advertise.

Syntax Description

all Specifies all ports on the switch.
port_list Specifies one or more ports or slots and ports.
advertise Specifies to send the information to neighbors.
no-advertise Specifies not to send the information to neighbors.

Default

No advertise.

Usage Guidelines

This command enables the LLDP media endpoint discovery (MED) capabilities TLV, which allows LLDP-MED network connectivity devices to definitively determine that particular endpoints support LLDP MED, and if so, to discover which LLDP MED TLVs the particular endpoint devices are capable of supporting and to which specific device class the device belongs to.

This TLV must be enabled before any of the other MED TLVs can be enabled; and this TLV must be set to no-advertise after all other MED TLVs are set to no-advertise.

As with all the LLDP MED TLVs, the switch sends this TLV only after it detects a MED-capable device on the port. The switch does not automatically send this TLV after it is enabled; the switch must first detect a MED-capable device on the port.

Note

Note

Network connectivity devices wait to detect LLDP MED TLVs from endpoints before they send out LLDP MED TLVs; so L2 network connectivity devices do not exchange LLDP MED messages.

The following information is included in the LLDP MED capabilities TLV when it is transmitted:
  • The supported LLDP MED TLVs—For Extreme Networks devices, these are capabilities, network policy, location, and extended power (extended power only advertised only on PoE (Power over Ethernet)-capable ports).

  • The MED device type—For Extreme Networks devices, this is advertised as a network connectivity device (set to 4).

Example

The following command configures all ports to advertise MED capabilities to neighbors:

configure lldp ports all advertise vendor-specific med capabilities

History

This command was first available in ExtremeXOS 11.5.

Platform Availability