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Setting LLDP MED Network Policy
An LLDP-MED network policy is a related set of configuration settings for a specific real-time
application such as voice, or video. A network policy, if configured, can be included in the outgoing
LLDP packets to the attached LLDP media endpoint device. The media endpoint device must send
its traffic as specified in the network policy it receives. For example, a policy can be created for
VoIP traffic that instructs VoIP phone to:
•
Send voice traffic on VLAN 10 as tagged packet and with 802.1p priority 5.
•
Send voice traffic with DSCP 46.
Network policies are associated with ports by using the LLDP MED Port Settings page. An
administrator can manually configure one or more network policies and the interfaces where the
policies are to be sent. It is the administrator's responsibility to manually create the VLANs and
their port memberships according to the network policies and their associated interfaces.
In addition, an administrator can instruct the device to automatically generate and advertise a
network policy for voice application based on the voice VLAN maintained by the device. Refer the
Auto Voice VLAN section for details on how the device maintains its voice VLAN.
To define an LLDP MED network policy:
1.
Click
Configuration > Port Management > Discovery – LLDP > LLDP MED Network
.
This page contains previously-created network policies.
2.
When Network Policy for Voice Application is enabled, the device automatically generates
and advertises a network policy with the current voice VLAN configuration. Go to Voice
VLAN > Feature Configuration page to configure the voice VLAN.
3.
Click
Apply
to add this setting to the Running Configuration file.
4.
To define a new policy, click
Add
.
5.
Enter the values:
•
Network Policy Number—Select the number of the policy to be created.
•
Application—Select the type of application (type of traffic) for which the network
policy is being defined.
•
VLAN ID—Enter the VLAN ID to which the traffic must be sent.
•
VLAN Tag—Select whether the traffic is Tagged or Untagged.
•
Layer 2 Priority—Select the traffic priority applied to traffic defined by this
network policy. This is the CoS value.
•
DSCP Value—Select the DSCP value to associate with application data sent by
neighbors. This informs them how they must mark the application traffic they send
to the device.
6.
Click
Apply
. The network policy is defined.
Note
—You must manually configure the interfaces to include the desired manually-defined
network policies for the outgoing LLDP packets using the LLDP MED Port Settings.
