Mitel MiVOICE BUSINESS, Engineering Manualline

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LLDP and LLDP-MED Configuration Examples
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APPLYING PER VLAN PRIORITY AND DSCP QOS (OPTIONAL)
A VLAN can be assigned a Priority value or a DSCP with associated Priority values, on a per
VLAN basis. Note that all packets on this VLAN will have their QoS parameters adjusted as
defined by the VLAN settings.
A VLAN can be assigned a per VLAN Priority value that will be applied on a VLAN basis and
will force all packets on a VLAN to have a common Priority value. This may not be desirable
for some applications, as some voice packets may need to have different priority levels. If this
VLAN is identified as voice and is enabled at an Access Port, then LLDP-MED will advertise
this Priority value rather than the default. The default DSCP value will continue to be used.
A VLAN can be assigned a per VLAN DSCP value that will be applied on a VLAN basis and
will force all packets on a VLAN to common DSCP and Priority values. The priority values are
based on the DSCP to Priority map settings. This may not always be desirable for some
applications, as some voice packets may need to have different priority levels. If this VLAN is
identified as voice and is enabled at an Access Port, the LLDP-MED will advertise the defined
DSCP value with associated Priority value, rather than the default values.
CONNECTING NON-VLAN ENABLED VOICE DEVICES TO THE NETWORK
Typically these would be voice servers, applications and gateways. These devices may not
support VLAN tagging capability, but may provide DSCP, depending on the application. In this
case, the VLAN would be assigned as
untagged to the Ethernet switch port and the DSCP to
Priority map could be used to assign the appropriate Priority level to the incoming data.
Alternatively, the port priority can be applied on a per port basis. This would be configured
through the command
interface <port-list> qos priority <0-7> .
LLDP/LLDP-MED will advertise DSCP, VLAN and Priority from an untagged access port, but
the VLAN and Priority values are only provided for informational purposes, since the end device
is sending untagged frames and as such, will only be able to make use of the DSCP information.
It is important that the static priority value configured at the interface port lines up with priority
settings advertised to other voice devices that are LLDP aware in order to have a common QoS
policy throughout the network.
ENSURE THAT LLDP IS ENABLED
By default, LLDP and LLDP-MED will be enabled when using HP Procurve switches.
There are a number of individual settings to enable or disable LLDP or LLDP-MED. More
detailed instructions can be found within the ProCurve switch installation and configuration
manual. For this example, the main activity is to ensure that LLDP functionality is operational.
To enable or disable LLDP across the switch use the following:
HP ProCurve Switch 5304XL(config)# vlan 63 qos priority 6
HP ProCurve Switch 5304XL(config)# vlan 63 qos dscp 101110
HP ProCurve Switch 5304XL(config)# lldp run (enable)
HP ProCurve Switch 5304XL(config)# no lldp run (disable)