configure lldp ports vendor-specific med policy application

configure lldp ports [all | port_list] [advertise | no-advertise] vendor-specific med policy application [voice | voice-signaling |guest-voice | guest-voice-signaling | softphone-voice | video-conferencing | streaming-video | video-signaling] vlan vlan_name dscp dscp_value {priority-tagged}

Description

Configures the LLDP (Link Layer Discovery Protocol) port to advertise or not advertise MED network policy TLVs. This TLV advertises VLAN (Virtual LAN) configuration and associated Layer 2 and Layer 3 attributes that apply for a set of specific applications on that port. You can advertise up to 8 TLVs, each for a specific application, per port/VLAN. Each application type can exist only once per port. This TLV tells the endpoint the specific VLAN to use for the specific application, along with its unique priority.

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.
advertise Specifies to send the information to neighbors.
voice Specifies voice application on specified port/VLAN(s).
voice-signaling Specifies voice signaling application on specified port/VLAN(s).
guest-voice Specifies guest voice application on specified port/VLAN(s).
guest-voice-signaling Specifies guest voice signaling application on specified port/VLAN(s).
softphone-voice Specifies soft phone voice application on specified port/VLAN(s).
video-conferencing Specifies videoconferencing application on specified port/VLAN(s).
streaming-video Specifies streaming video application on specified port/VLAN(s).
video-signaling Specifies video signaling application on specified port/VLAN(s).
vlan_name Specifies the VLAN the specified application is using.

NOTE: This parameter does not apply when the no-advertise parameter is configured.

dscp_value Specifies the DSCP value for the specified application. This is a 6-bit value from 0 to 63.

NOTE: This parameter does not apply when the no-advertise parameter is configured.

priority-tagged Use this if you want priority tagging, and the VLAN is configured as untagged on the port. (The endpoint sends out frames for the specified application with a tag of 0.)

NOTE: This parameter does not apply when the no-advertise parameter is configured.

Default

No advertise.

Usage Guidelines

This command enables the LLDP MED network policy TLV, which allows network connectivity devices and endpoint devices to advertise VLAN configuration and associated Layer 2 and Layer 3 attributes that apply for a set of specific application on that port. This TLV can be enabled on a per port/VLAN basis. Each application type can exist only once on a port.

You can enable the transmission of a TLV policy for each application. A maximum of 8 TLVs can be enabled, and each can have a unique DSCP value and/or priority tagging.

You must configure the LLDP MED capabilities TLV before configuring this TLV. Configure the LLDP MED capabilities TLV using the configure lldp ports [all | port_list] [advertise | no-advertise] vendor-specific med capabilities command.

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.

The following information is transmitted for LLDP ports with this TLV:
  • Application type

    Used as configured.

  • Unknown policy flag

    Set to 0.

  • Tagged flag

    Set to tagged for tagged VLANs; set to untagged for untagged VLANs. By default, set to 0.

  • VLAN ID

    Copied from the VLAN. However, if you configure the priority-tagged parameter, this value is set to 0.

  • Layer 2 priority

    Copied from the VLAN priority.

  • DSCP value

    Uses the value configured in the dscp parameter.

Note

Note

See the documentation provided by the manufacturer of connected devices regarding values.

Example

The following command configures all ports to advertise videoconferencing on the VLAN video with a DSCP of 7 to neighbors:

configure lldp ports all advertise vendor-specific med policy application video-conferencing vlan video dscp 7

History

This command was first available in ExtremeXOS 11.5.

Platform Availability

This command is available on the Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X620, X690, X870 series switches.