HP Aruba JL253A Management And Configuration Manual page 236

NOTE: LLDP-MED operation requires the macphy_config TLV subelement (enabled by default) that
is optional for IEEE 802.1AB LLDP operation. For more information, see the dot3TlvEnable
macphy_config command (Configuring support for port speed and duplex advertisements
(CLI) on page 230).
Network policy advertisements
Network policy advertisements are intended for real-time voice and video applications, and include these TLV
subelements:
• Layer 2 (802.1p) QoS
• Layer 3 DSCP (diffserv code point) QoS
• Voice VLAN ID (VID)
VLAN operating rules
These rules affect advertisements of VLANs in network policy TLVs:
• The VLAN ID TLV subelement applies only to a VLAN configured for voice operation (vlan <vid> voice ).
• If there are multiple voice VLANs configured on a port, LLDP-MED advertises the voice VLAN having the
lowest VID.
• The voice VLAN port membership configured on the switch can be tagged or untagged. However, if the LLDP-
MED endpoint expects a tagged membership when the switch port is configured for untagged, or the reverse,
a configuration mismatch results. (Typically, the endpoint expects the switch port to have a tagged voice VLAN
membership.)
• If a given port does not belong to a voice VLAN, the switch does not advertise the VLAN ID TLV through this
port.
Policy elements
These policy elements may be statically configured on the switch or dynamically imposed during an authenticated
session on the switch using a RADIUS server and 802.1X or MAC authentication. (Web authentication does not
apply to VoIP telephones and other telecommunications devices that are not capable of accessing the switch
through a Web browser.) The QoS and voice VLAN policy elements can be statically configured with the following
CLI commands:
vlan <vid> voice
vlan <vid> {<tagged | untagged> <port-list>}
int <port-list> qos priority <0-7>
vlan <vid> qos dscp <codepoint>
NOTE: A codepoint must have an 802.1p priority before you can configure it for use in prioritizing
packets by VLAN-ID. If a codepoint you want to use shows No Override in the Priority column
of the DSCP policy table (display with show qos-dscp map, then use qos-dscp map
<codepoint> priority <0-7> to configure a priority before proceeding. For more information
on this topic, see the "Quality of Service (QoS): Managing Bandwidth More Effectively" in the
advanced traffic management guide for your switch.
Enabling or Disabling medTlvEnable
In the default LLDP-MED configuration, the TLVs controlled by medTlvEnable are enabled. For more information,
see Advertising device capability, network policy, PoE status and location data on page 235.
236 Aruba 2930F / 2930M Management and Configuration Guide
for ArubaOS-Switch 16.08